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Copyright © 2019, Oracle and/or its affiliates. All rights reserved.
What to Expect from
Oracle Database 19c
Maria Colgan
Master Product Manager
Mission Critical Database Technologies
June 2019
Safe Harbor Statement
The preceding is intended to outline our general product direction. It is intended for
information purposes only, and may not be incorporated into any contract. It is not a
commitment to deliver any material, code, or functionality, and should not be relied upon
in making purchasing decisions. The development, release, and timing of any features or
functionality described for Oracle’s products remains at the sole discretion of Oracle.
2
Database Release and Support Timelines up until 19c2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
EXTENDED*
18c
11.2.0.4 EXTENDED
EXTENDED12.1.0.2
12.2.0.1
19c
Paid Extended SupportPremier Waived Extended Support Fee
3
*Oracle Database 19c is the long term support release.
Always check MOS Note 742060.1 for the latest schedule.
Confidential - Oracle Internal Only
Production on
Exadata, Linux,
Solaris, Windows,
HP-UX, and AIX
Additional Platforms to follow…
4
12.2.0.312.2.0.212.2.0.1
Last Release of the 12.2 family of products
12.2.0.312.2.0.212.2.0.1
Continual improvements in each release….
Sharding
Multitenant, Online
Clone and Relocate
Autonomous Health
Framework
Online Encryption
New In-Memory Features
12.2.0.312.2.0.212.2.0.1
Mem Optimized Row Store
Sharded RAC
Multitenant Snapshot
Carousel
Active Directory Integration
Private Temporary Tables
T1 T2 T3 T4
Active
Directory
Continual improvements in each release….
12.2.0.312.2.0.212.2.0.1
High speed data ingestion
Active Data Guard DML
Redirect
Automatic Indexing
Hybrid Partition Tables
JSON Improvements
SALESTABLE
Q1 Q2 Q3
Continual improvements in each release….
9
Read Only Oracle HomeInline External Tables
OnlineTableMove
JSON
Real Time Materialized Views
IndexCompression
Auto Generated Sequences
Long Identifiers
Online Tablespace Encryption
Property Graph
SQL Plan Management Enhancements
TopNQueries
Invisible Columns
Longer Varchars
Security Assessment Tool
LiveSQL
IndexUsageStats
Application
Continuity
Data Guard DML Redirect
Polymorphic Table Functions
Load From Object Stores
Unicode 9 Support
Quarantine for SQL Plans
Analytical Views Real-Time Statistics
Approximate Functions
Schema-only Oracle accounts
And Many Many More….
GoldenGate for heterogeneous replication
Database
Upgrades
11
Direct Upgrade to Oracle Database 19c
12.2.0.1
12.1.0.2
11.2.0.4
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |
New Auto Upgrade Tool
• Oracle Database Auto Upgrade allows DBAs to upgrade one
or many databases without human intervention
• Allows the DBA to upgrade one or many databases without
human intervention
• The Auto Upgrade utility identifies issues before upgrades,
deploys upgrades, performs post upgrade actions, and
brings up the upgraded Oracle Database
• Currently supports 11.2 and 18c
12
11g
19c
* See MOS Note 2485457.1 for more details
13
What to expect from
Oracle Database
Performance and Scalability
• Continuous Innovation and Improvement
• Row Level Locking, Read Consistency, B-Tree Indexes,
Bitmap Indexes, Materialised Views, Parallel Query,
Advanced Compression, ASM, Results Cache
• Software in Silicon
• In-Memory Column Store
• Exadata provides the best database platform
for all workloads
14
12.1 12.2, 18c, 19c
• 12.2
• In Memory JSON Queries
• In Memory Active Standby
• 18c
• Memory Optimized Row Store
• 19c
• Fast ingest support for IoT type workloads
• Quarantine for SQL Plans
• Automatic Indexing
Memoptimized Rowstore : Fast Ingest Support
SGA
BUFFER CACHE
LARGE POOL SHARED POOL
Batched Rows
Batched Rows
Batched Rows
DRAINER PROCESSES
WRITE VERIFICATION API
APPLICATION
SERVER
HIGH VOLUME
INSERTS
IOT : SENSORS,
TELEMETRY,
LOCATION ETC.
• A memory optimised mechanism for
inserting data into the database
• Ideal for light weight IoT transactions
• Rows are cached in memory and
asynchronously drained to disk
• An API allows developers to check on the
durability of their inserts
– Declare table MEMOPTIMIZE FOR WRITE
– Use new hint MEMOPTIMIZE_WRITE
16
SQL BELOW
RESOURCE
THRESHOLD
RESULTS
RETURNED SQL CONSUMING
EXCESSIVE
RESOURCE
SQL PREVENTED
FROM RE-RUNNING
DBA CAN MONITOR AND EXPORT
QUARANTINED SQL OR CHANGE
THE PLAN TO GET IT OUT OF
QUARANTINE
USER EXECUTES
SQL STATEMENT
SQL Quarantine
• SQL execution plans consuming excessive
resources are quarantined
• It’s prevented from executing again
• Improves overall responsiveness of the
system by stopping “rogue” SQL
statements being continually resubmitted
• DBA can monitor quarantined statements
in V$SQL
• Controlled by DBMS_SQLQ or
DBMS_RESOUCE_MANAGER
17Copyright © 2019, Oracle and/or its affiliates. All rights reserved.
An expert system that implements
indexes based on what a skilled
performance engineer would do
Reinforcement Learning allows it to
learn from it’s own actions as all
candidate indexes are validated before
being implementing
The entire process is fully automatic
Transparency is equally important as
sophisticated automation
All tuning activities are auditable
Automatic Indexing
Capture
Identify
VerifyDecide
Monitor
High Availability
18
New in 12.2, 18c, 19c
• 12.2
• Sharding
• Autonomous Health Framework
• 18c
• Sharded RAC
• 19c
• Data Guard DML Redirect
• Sharding now supports multiple PDB
shards in a CDB
• Improvements to Application Continuity
• Comprehensive HA and disaster recovery
functionality
• Real Application Clusters, Active Data Guard, Recovery
Appliance
• Oracle GoldenGate for heterogeneous replication
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |
Active Data Guard : DML Redirection
• Allows DML to be executed against the standby database
• On execution the DML operation is passed to the primary database
• The primary database performs the operations and generates the redo
• The redo is then applied to the standby and control returned to the
application
• The transaction is fully ACID compliant
• Allows for incidental updates to be run against the standby increasing the
overall flexibility of the disaster recovery architecture
19
Active Data Guard : DML Redirection
Read Mostly Standby
20
PRIMARY ACTIVE STANDBY
DML1
2 DML IS REDIRECTED TO PRIMARY
3 DML IS APPLIED TO PRIMARY
4 DATA CHANGE IS STREAMED TO STANDBY
5 DATA IS VISIBLE TO
CLIENT
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |
• Support multiple PDB-shards in the same CDB
– Allows consolidation of apps that require separate
databases, but share the same system
• Multiple Table Families
– Support multiple table families where data from
different families reside in the same chunk
• For system-managed sharding method
– Different apps accessing different table families
can now be hosted on one sharded DB
• Propagate parameter setting across shards
– Centrally manage and propagate "ALTER
SYSTEM" parameter setting from shard catalog to
all shards
21
Sharding Enhancements
Application Development
22
New in 12.2, 18c, 19c
• 12.2
• Long Identifiers
• Case Insensitive Databases
• 18c
• Improved JSON Support
• C, Python, Javascript JSON SODA API
• Private Temporary Tables
• 19c
• SQL JSON Enhancements
• Partial JSON Update support
• Application Express provides a low code platform
for building stunning scalable applications
• SQL Developer IDE & SQLCl provide class leading
functionality for both developers and admins
• Comprehensive Language support
• PL/SQL, SQL , Python, Node.js, PHP, Java, C, .NET, REST
• JSON for schema less development
Confidential - Oracle Internal Only
Oracle Database 19c JSON Support
23
• The Oracle Database provides comprehensive support for JSON
– Via Standard DML
– NoSQL APIs (Java, REST, C, Python, JavaScript, PL/SQL)
– Analytics (Dot Notation Access, Parallel Query, QBE, Columnar Access)
– JSON Data Guide to analyze the meta data of JSON Collections
• Improvements in Oracle Database 19c include
– JSON Update operations
– Materialised View Support for JSON_TABLE
– JSON Function Simplification
UPDATE purchaseorder_tab
SET po_document =
json_mergepatch(
po_document,
'{"Special Instructions":null}’
);
24
Partial JSON Update Support
• New SQL function
JSON_MERGEPATCH enables
you to update specific portions of a
JSON document without have to
replace the entire document
• Imagine we need to updates all of
the JSON documents in the
po_document column of the
purchaseorder_tab table to
remove the field "Special
Instructions"
Data Warehousing and Big Data
• The most advanced analytics engine available
today
• Partitioning, Compression, SQL, Analytical Views, Analytical
SQL, Data Mining
• Easily analyze data held in Hadoop with Big Data
SQL
• Big Data Appliance provides an out of the box
high performance analytics platform
25
New in 12.2, 18c, 19c
• 12.2
• Partitioned External Tables
• Analytical Views
• 18c
• Neural Network Support
• In-Memory for external tables
• Automatic propagation of nologged data to
standby
• 19c
• Partitioned Hybrid Tables
• Real Time Stats Collection
Confidential - Oracle Internal Only
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | 26
Hybrid Partitioned Tables
Q4_2018Q3_2018Q2_2018Q1_2018Q4_2017Q3_2017Q2_2017Q1_2017Q4_2016
ORDERS
OBJECT STORAGE
TABLE PARTITIONED BY QUARTER
SQL HOT DATACOLD DATA
UPDATES
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |
Real-Time Statistics
• Gather statistics as part of conventional DML
(Insert/update/merge)
• Statistics gathered during DML needs to be fast
with negligible overhead
• Only most essential stats are gathered to avoid
catastrophic SQL execution plan performance
regressions (e.g. avoiding out-of-range conditions)
– Min, Max, num_rows, etc.
• Gathering of remaining statistics is deferred
– Automatic statistics gathering job still kicks in as needed
27
ORDERS
ORDERS Stats
INSERTS/UPDATES
DELETES
STATS AUTOMATICALLY MAINTAINED
AS DATA IS MODIFIED
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. |
Multitenant
• Container managed database virtualization
• Manage Many as one
• Patching, Backup, Security, Online Cloning, Online
Relocation
• Software as Service
• Shared metadata, Data location transparency
28
New in 12.2, 18c, 19c
• 12.2
• Online cloning & relocation
• Incremental refresh of test/dev master
• Application containers
• 18c
• Transportable backups
• Snapshot carousel
• Refreshable PDB switchover
• 19c
• RAT and ADDM at PDB level
Security
• Security In-Depth
• Access Controls, Encryption, Redaction, Masking, Auditing,
SQL Firewalls
• Key Vault
• Audit Vault Database Firewall
• Security Assessment Tool
29
12.1
Active Directory
• 12.2
• Online encryption
• 18c
• Integration with Active Directory
• Password-less schema creation
• 19c
• Schema-only Oracle accounts
• Database Vault Operations Control
12.2, 18c, 19c
30
Centrally Managed Users Directly in Active Directory
Database User
Authentication Data
Authorization Data
Oracle
Directory Services
Map Users / Roles
Enterprise Domains
Password
Kerberos, PKI
Oracle
Database
Small Change
Small but important…
31
EZConnect Improvements
• Simplification of Easy Connect syntax
• Easy Connect adaptor will now accept a list of name value pairs
– For example: SDU, RETRY_COUNT, CONNECT_TIMEOUT, etc.
• Will now enable multiple hosts/ports in the connect string
• Typically used in load-balancing client connections
Oracle Confidential – Internal32
$> sqlplus soe/soe@(DESCRIPTION=
(ADDRESS_LIST=
(LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL=tcp)(HOST=salesserver1)(PORT=1522))
(ADDRESS=(PROTOCOL=tcp)(HOST=salesserver2)(PORT=1522))
(ADDRESS=(PROTOCOL=tcp)(HOST=salesserver3)(PORT=1522)))
(CONNECT_DATA=(SERVICE_NAME=sales.us.example.com)))
$> sqlplus soe/soe@//salesserver1,salesserver2,salesserver3:1522/sales.us.example.com$> sqlplus soe/soe@(DESCRIPTION=
(retry_count=3) (connect_timeout=60)(transport_connect_timeout=30)
(ADDRESS=(PROTOCOL=tcp)(HOST=salesserver1)(PORT=1521))
(CONNECT_DATA=(SERVICE_NAME=sales.us.example.com)))
$> sqlplus soe/soe@//salesserver1:1521/sales.us.example.com?connect_timeout=60&
transport_connect_timeout=30&retry_count=3
Confidential - Oracle Internal Only
• Free to use
• Includes most EE features
– no RAC, Data Guard, GoldenGate
• No support
• Resource limited:
– 2 CPUs for foreground processes
– 2 GB memory (SGA + PGA)
– 12 GB user data
• 3 PDBs
33
Oracle Database XE
https://www.oracle.com/database/technologies/appdev/xe.html
New Install Approaches
• Oracle Database 19c RPM Install
• Yum install of Oracle Instant Clients
• Oracle Read Only Homes
• No click through client software install
• Oracle Docker images
34
SQLDeveloper Web
Confidential - Oracle Internal Only
• Browser based IDE for Oracle database
development
• Allows developers to run SQL
statements and build scripts
• Build diagrams using the Data Modeler
• Use Real Time SQL Monitor to analyse
SQL
•
Oracle Data REST Services (ORDS)
• ORDS provides REST services for both application
development and administration
• In ORDS 19.1 we now provide REST endpoints to
enable the management and monitoring of the
Oracle Database
• General, Data Dictionary, Monitoring,
Performance, & PDB Lifecycle Management
• Additional end points to be rolled out in future
updates
36Confidential - Oracle Internal Only
Database Features – New App
Database feature app
• Part of Oracle Documentation
• Compare releases & interactively
view new features
https://apex.oracle.com/database-features/
37Confidential - Oracle Internal Only
livesql.oracle.com is now running Oracle Database 19c
Oracle Database 19c
Free access
Run SQL scripts
Run Tutorials
Share Scripts
38
Summary
• Oracle Database 19c is now
production and available on premises
• Oracle Database 19c offers an
extended support window making it
an excellent choice for current and
future upgrade plans
• Focus on long term stability
• Foundation of the Oracle
Autonomous Database
39
Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | 40
Discover more
oracle.com/database

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What to Expect From Oracle database 19c

  • 1. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. What to Expect from Oracle Database 19c Maria Colgan Master Product Manager Mission Critical Database Technologies June 2019
  • 2. Safe Harbor Statement The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle. 2
  • 3. Database Release and Support Timelines up until 19c2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 EXTENDED* 18c 11.2.0.4 EXTENDED EXTENDED12.1.0.2 12.2.0.1 19c Paid Extended SupportPremier Waived Extended Support Fee 3 *Oracle Database 19c is the long term support release. Always check MOS Note 742060.1 for the latest schedule. Confidential - Oracle Internal Only
  • 4. Production on Exadata, Linux, Solaris, Windows, HP-UX, and AIX Additional Platforms to follow… 4
  • 5. 12.2.0.312.2.0.212.2.0.1 Last Release of the 12.2 family of products
  • 6. 12.2.0.312.2.0.212.2.0.1 Continual improvements in each release…. Sharding Multitenant, Online Clone and Relocate Autonomous Health Framework Online Encryption New In-Memory Features
  • 7. 12.2.0.312.2.0.212.2.0.1 Mem Optimized Row Store Sharded RAC Multitenant Snapshot Carousel Active Directory Integration Private Temporary Tables T1 T2 T3 T4 Active Directory Continual improvements in each release….
  • 8. 12.2.0.312.2.0.212.2.0.1 High speed data ingestion Active Data Guard DML Redirect Automatic Indexing Hybrid Partition Tables JSON Improvements SALESTABLE Q1 Q2 Q3 Continual improvements in each release….
  • 9. 9 Read Only Oracle HomeInline External Tables OnlineTableMove JSON Real Time Materialized Views IndexCompression Auto Generated Sequences Long Identifiers Online Tablespace Encryption Property Graph SQL Plan Management Enhancements TopNQueries Invisible Columns Longer Varchars Security Assessment Tool LiveSQL IndexUsageStats Application Continuity Data Guard DML Redirect Polymorphic Table Functions Load From Object Stores Unicode 9 Support Quarantine for SQL Plans Analytical Views Real-Time Statistics Approximate Functions Schema-only Oracle accounts And Many Many More…. GoldenGate for heterogeneous replication
  • 11. 11 Direct Upgrade to Oracle Database 19c 12.2.0.1 12.1.0.2 11.2.0.4
  • 12. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | New Auto Upgrade Tool • Oracle Database Auto Upgrade allows DBAs to upgrade one or many databases without human intervention • Allows the DBA to upgrade one or many databases without human intervention • The Auto Upgrade utility identifies issues before upgrades, deploys upgrades, performs post upgrade actions, and brings up the upgraded Oracle Database • Currently supports 11.2 and 18c 12 11g 19c * See MOS Note 2485457.1 for more details
  • 13. 13 What to expect from Oracle Database
  • 14. Performance and Scalability • Continuous Innovation and Improvement • Row Level Locking, Read Consistency, B-Tree Indexes, Bitmap Indexes, Materialised Views, Parallel Query, Advanced Compression, ASM, Results Cache • Software in Silicon • In-Memory Column Store • Exadata provides the best database platform for all workloads 14 12.1 12.2, 18c, 19c • 12.2 • In Memory JSON Queries • In Memory Active Standby • 18c • Memory Optimized Row Store • 19c • Fast ingest support for IoT type workloads • Quarantine for SQL Plans • Automatic Indexing
  • 15. Memoptimized Rowstore : Fast Ingest Support SGA BUFFER CACHE LARGE POOL SHARED POOL Batched Rows Batched Rows Batched Rows DRAINER PROCESSES WRITE VERIFICATION API APPLICATION SERVER HIGH VOLUME INSERTS IOT : SENSORS, TELEMETRY, LOCATION ETC. • A memory optimised mechanism for inserting data into the database • Ideal for light weight IoT transactions • Rows are cached in memory and asynchronously drained to disk • An API allows developers to check on the durability of their inserts – Declare table MEMOPTIMIZE FOR WRITE – Use new hint MEMOPTIMIZE_WRITE
  • 16. 16 SQL BELOW RESOURCE THRESHOLD RESULTS RETURNED SQL CONSUMING EXCESSIVE RESOURCE SQL PREVENTED FROM RE-RUNNING DBA CAN MONITOR AND EXPORT QUARANTINED SQL OR CHANGE THE PLAN TO GET IT OUT OF QUARANTINE USER EXECUTES SQL STATEMENT SQL Quarantine • SQL execution plans consuming excessive resources are quarantined • It’s prevented from executing again • Improves overall responsiveness of the system by stopping “rogue” SQL statements being continually resubmitted • DBA can monitor quarantined statements in V$SQL • Controlled by DBMS_SQLQ or DBMS_RESOUCE_MANAGER
  • 17. 17Copyright © 2019, Oracle and/or its affiliates. All rights reserved. An expert system that implements indexes based on what a skilled performance engineer would do Reinforcement Learning allows it to learn from it’s own actions as all candidate indexes are validated before being implementing The entire process is fully automatic Transparency is equally important as sophisticated automation All tuning activities are auditable Automatic Indexing Capture Identify VerifyDecide Monitor
  • 18. High Availability 18 New in 12.2, 18c, 19c • 12.2 • Sharding • Autonomous Health Framework • 18c • Sharded RAC • 19c • Data Guard DML Redirect • Sharding now supports multiple PDB shards in a CDB • Improvements to Application Continuity • Comprehensive HA and disaster recovery functionality • Real Application Clusters, Active Data Guard, Recovery Appliance • Oracle GoldenGate for heterogeneous replication
  • 19. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | Active Data Guard : DML Redirection • Allows DML to be executed against the standby database • On execution the DML operation is passed to the primary database • The primary database performs the operations and generates the redo • The redo is then applied to the standby and control returned to the application • The transaction is fully ACID compliant • Allows for incidental updates to be run against the standby increasing the overall flexibility of the disaster recovery architecture 19
  • 20. Active Data Guard : DML Redirection Read Mostly Standby 20 PRIMARY ACTIVE STANDBY DML1 2 DML IS REDIRECTED TO PRIMARY 3 DML IS APPLIED TO PRIMARY 4 DATA CHANGE IS STREAMED TO STANDBY 5 DATA IS VISIBLE TO CLIENT
  • 21. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | • Support multiple PDB-shards in the same CDB – Allows consolidation of apps that require separate databases, but share the same system • Multiple Table Families – Support multiple table families where data from different families reside in the same chunk • For system-managed sharding method – Different apps accessing different table families can now be hosted on one sharded DB • Propagate parameter setting across shards – Centrally manage and propagate "ALTER SYSTEM" parameter setting from shard catalog to all shards 21 Sharding Enhancements
  • 22. Application Development 22 New in 12.2, 18c, 19c • 12.2 • Long Identifiers • Case Insensitive Databases • 18c • Improved JSON Support • C, Python, Javascript JSON SODA API • Private Temporary Tables • 19c • SQL JSON Enhancements • Partial JSON Update support • Application Express provides a low code platform for building stunning scalable applications • SQL Developer IDE & SQLCl provide class leading functionality for both developers and admins • Comprehensive Language support • PL/SQL, SQL , Python, Node.js, PHP, Java, C, .NET, REST • JSON for schema less development Confidential - Oracle Internal Only
  • 23. Oracle Database 19c JSON Support 23 • The Oracle Database provides comprehensive support for JSON – Via Standard DML – NoSQL APIs (Java, REST, C, Python, JavaScript, PL/SQL) – Analytics (Dot Notation Access, Parallel Query, QBE, Columnar Access) – JSON Data Guide to analyze the meta data of JSON Collections • Improvements in Oracle Database 19c include – JSON Update operations – Materialised View Support for JSON_TABLE – JSON Function Simplification
  • 24. UPDATE purchaseorder_tab SET po_document = json_mergepatch( po_document, '{"Special Instructions":null}’ ); 24 Partial JSON Update Support • New SQL function JSON_MERGEPATCH enables you to update specific portions of a JSON document without have to replace the entire document • Imagine we need to updates all of the JSON documents in the po_document column of the purchaseorder_tab table to remove the field "Special Instructions"
  • 25. Data Warehousing and Big Data • The most advanced analytics engine available today • Partitioning, Compression, SQL, Analytical Views, Analytical SQL, Data Mining • Easily analyze data held in Hadoop with Big Data SQL • Big Data Appliance provides an out of the box high performance analytics platform 25 New in 12.2, 18c, 19c • 12.2 • Partitioned External Tables • Analytical Views • 18c • Neural Network Support • In-Memory for external tables • Automatic propagation of nologged data to standby • 19c • Partitioned Hybrid Tables • Real Time Stats Collection Confidential - Oracle Internal Only
  • 26. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | 26 Hybrid Partitioned Tables Q4_2018Q3_2018Q2_2018Q1_2018Q4_2017Q3_2017Q2_2017Q1_2017Q4_2016 ORDERS OBJECT STORAGE TABLE PARTITIONED BY QUARTER SQL HOT DATACOLD DATA UPDATES
  • 27. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | Real-Time Statistics • Gather statistics as part of conventional DML (Insert/update/merge) • Statistics gathered during DML needs to be fast with negligible overhead • Only most essential stats are gathered to avoid catastrophic SQL execution plan performance regressions (e.g. avoiding out-of-range conditions) – Min, Max, num_rows, etc. • Gathering of remaining statistics is deferred – Automatic statistics gathering job still kicks in as needed 27 ORDERS ORDERS Stats INSERTS/UPDATES DELETES STATS AUTOMATICALLY MAINTAINED AS DATA IS MODIFIED
  • 28. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | Multitenant • Container managed database virtualization • Manage Many as one • Patching, Backup, Security, Online Cloning, Online Relocation • Software as Service • Shared metadata, Data location transparency 28 New in 12.2, 18c, 19c • 12.2 • Online cloning & relocation • Incremental refresh of test/dev master • Application containers • 18c • Transportable backups • Snapshot carousel • Refreshable PDB switchover • 19c • RAT and ADDM at PDB level
  • 29. Security • Security In-Depth • Access Controls, Encryption, Redaction, Masking, Auditing, SQL Firewalls • Key Vault • Audit Vault Database Firewall • Security Assessment Tool 29 12.1 Active Directory • 12.2 • Online encryption • 18c • Integration with Active Directory • Password-less schema creation • 19c • Schema-only Oracle accounts • Database Vault Operations Control 12.2, 18c, 19c
  • 30. 30 Centrally Managed Users Directly in Active Directory Database User Authentication Data Authorization Data Oracle Directory Services Map Users / Roles Enterprise Domains Password Kerberos, PKI Oracle Database
  • 31. Small Change Small but important… 31
  • 32. EZConnect Improvements • Simplification of Easy Connect syntax • Easy Connect adaptor will now accept a list of name value pairs – For example: SDU, RETRY_COUNT, CONNECT_TIMEOUT, etc. • Will now enable multiple hosts/ports in the connect string • Typically used in load-balancing client connections Oracle Confidential – Internal32 $> sqlplus soe/soe@(DESCRIPTION= (ADDRESS_LIST= (LOAD_BALANCE=ON) (ADDRESS=(PROTOCOL=tcp)(HOST=salesserver1)(PORT=1522)) (ADDRESS=(PROTOCOL=tcp)(HOST=salesserver2)(PORT=1522)) (ADDRESS=(PROTOCOL=tcp)(HOST=salesserver3)(PORT=1522))) (CONNECT_DATA=(SERVICE_NAME=sales.us.example.com))) $> sqlplus soe/soe@//salesserver1,salesserver2,salesserver3:1522/sales.us.example.com$> sqlplus soe/soe@(DESCRIPTION= (retry_count=3) (connect_timeout=60)(transport_connect_timeout=30) (ADDRESS=(PROTOCOL=tcp)(HOST=salesserver1)(PORT=1521)) (CONNECT_DATA=(SERVICE_NAME=sales.us.example.com))) $> sqlplus soe/soe@//salesserver1:1521/sales.us.example.com?connect_timeout=60& transport_connect_timeout=30&retry_count=3 Confidential - Oracle Internal Only
  • 33. • Free to use • Includes most EE features – no RAC, Data Guard, GoldenGate • No support • Resource limited: – 2 CPUs for foreground processes – 2 GB memory (SGA + PGA) – 12 GB user data • 3 PDBs 33 Oracle Database XE https://www.oracle.com/database/technologies/appdev/xe.html
  • 34. New Install Approaches • Oracle Database 19c RPM Install • Yum install of Oracle Instant Clients • Oracle Read Only Homes • No click through client software install • Oracle Docker images 34
  • 35. SQLDeveloper Web Confidential - Oracle Internal Only • Browser based IDE for Oracle database development • Allows developers to run SQL statements and build scripts • Build diagrams using the Data Modeler • Use Real Time SQL Monitor to analyse SQL •
  • 36. Oracle Data REST Services (ORDS) • ORDS provides REST services for both application development and administration • In ORDS 19.1 we now provide REST endpoints to enable the management and monitoring of the Oracle Database • General, Data Dictionary, Monitoring, Performance, & PDB Lifecycle Management • Additional end points to be rolled out in future updates 36Confidential - Oracle Internal Only
  • 37. Database Features – New App Database feature app • Part of Oracle Documentation • Compare releases & interactively view new features https://apex.oracle.com/database-features/ 37Confidential - Oracle Internal Only
  • 38. livesql.oracle.com is now running Oracle Database 19c Oracle Database 19c Free access Run SQL scripts Run Tutorials Share Scripts 38
  • 39. Summary • Oracle Database 19c is now production and available on premises • Oracle Database 19c offers an extended support window making it an excellent choice for current and future upgrade plans • Focus on long term stability • Foundation of the Oracle Autonomous Database 39
  • 40. Copyright © 2019, Oracle and/or its affiliates. All rights reserved. | 40 Discover more oracle.com/database

Hinweis der Redaktion

  1. This is a Safe Harbor Front slide, one of two Safe Harbor Statement slides included in this template. One of the Safe Harbor slides must be used if your presentation covers material affected by Oracle’s Revenue Recognition Policy To learn more about this policy, e-mail: Revrec-americasiebc_us@oracle.com For internal communication, Safe Harbor Statements are not required. However, there is an applicable disclaimer (Exhibit E) that should be used, found in the Oracle Revenue Recognition Policy for Future Product Communications. Copy and paste this link into a web browser, to find out more information.   http://my.oracle.com/site/fin/gfo/GlobalProcesses/RevRec/Policies/cnt2321729.pdf For all external communications such as press release, roadmaps, PowerPoint presentations, Safe Harbor Statements are required. You can refer to the link mentioned above to find out additional information/disclaimers required depending on your audience.
  2. Bitmap based count distinct SQL Function New bitvector SQL operators can be used for speeding up COUNT DISTINCT operations within a SQL query.  To compute COUNT(DISTINCT) for numeric expressions, you can create a bitvector representation of the expressions and aggregate them before the final bit count. The resulting bitvector can be materialized, such as in a materialized view. You can construct bitvectors by further grouping on a larger set of GROUP BY keys than targeted queries, such that one materialized view can be used to rewrite multiple GROUP BY queries with COUNT(DISTINCT) expressions, by using ROLLUP. In most scenarios, bitvector SQL functions combined with materialized views can provide significant performance improvements for queries with COUNT(DISTINCT) operations, which are common in data warehousing environments. The new operators are naturally evaluated in parallel and take advantage of hardware optimized bitmap operations. By creating materialized views with bitvectors at lower-level aggregation levels, the same materialized view can be reused to rewrite queries at higher level of aggregation levels by using ROLLUP.
  3. Memoptimized Rowstore - Fast Ingest The Memoptimized Rowstore - Fast Ingest feature enables fast data inserts into an Oracle database from applications, such as Internet of Things (IoT), which ingest small, high volume transactions with a minimal amount of transactional overhead. The insert operations that use fast ingest functionality temporarily buffer the data in the large pool before writing it to disk in bulk in a deferred, asynchronous manner. The fast ingest buffers are allocated from the LARGE_POOL at the time of the first fast ingest write (so not at instance startup). The default allocation is 2GB. We advise users to set SGA_TARGET and LARGE_POOL_SIZE (default 0 internally determined by oracle) to accommodate this and other large pool requirements (MTS, RMAN etc). Currently this is not based on cores, and the allocation size does not expand or shrink. MEMOPTIMIZE_POOL_SIZE is for KV lookup only. The SMCO background process submits tasks to Wxxx slave processes to flush the ingest buffers.  To use ingest: The table needs to be created with immediate segment creation (unless deferred is false) as well as the MoW attribute. For example, create table t (c1 number, c2 number) segment creation immediate memoptimize for write; The users also has to specify a new INSERT hint. For example insert /*+ memoptimize_write */ into t values(1,1); The alert log will show the ingest buffers allocated at the time of the first insert.
  4. Quarantine for SQL statements consuming excessive system resources SQL statements terminated by the Resource Manager due to their excessive consumption of CPU and I/O resources can be automatically quarantined. The quarantined SQL statements are prevented from executing again. This feature protects an Oracle database from performance degradation by preventing executing the SQL statements that excessively consume CPU and I/O resources.
  5. Capture Periodically capture the application SQL history into a SQL repository Includes SQL, plans, bind values, execution statistics, etc. Identify Candidates Identify candidate indexes that may benefit the newly captured SQL statements Creates index candidates as unusable, invisible indexes (metadata only) Drop indexes obsoleted by newly created indexes (logical merge) Verify Ask the optimizer if index candidates will be used for captured SQL statements Materialize indexes and run SQL to validate that the indexes improve their performance All verification is done outside application workflow Decide If performance is better for all statements, the indexes are marked visible If performance is worse for all statements, the indexes remain invisible If performance is worse for some, the indexes are marked visible except for the SQL statements that regressed Monitor Index usage is continuously monitored Automatically created indexes that have not been used in a long time will be dropped You can switch this service off It is resource controlled.. So it will use only one OCPU for doing auto indexing If we take a copy of your data and run on our CPUs then we may run into security and data privacy issues
  6. Active Data Guard DML Redirection You can run DML operations on Active Data Guard standby databases. This enables you to run read-mostly applications, which occasionally execute DMLs, on the standby database. DML operations on a standby can be transparently redirected to and run on the primary database. This includes DML statements that are part of PL/SQL blocks. The Active Data Guard session waits until the corresponding changes are shipped to and applied to the Active Data Guard standby. Read consistency is maintained during the DML operation and the standby database on which the DML is run can view its uncommitted changes. However, all the other standby database instances can view these changes only after the transaction is committed. Note: Avoid running too may DML operations on Active Data Guard standby databases. Because the operations are actually performed on the primary, too many DMLs may impact the performance of the primary. Automatic redirection of DML operations to the primary can be configured at the system level or the session level. The session level setting overrides the system level setting.  To configure automatic redirection of DML operations for all standby sessions in an Active Data Guard environment: Set the ADG_REDIRECT_DML initialization parameter to TRUE. To configure automatic redirection of DML operations for the current session, use the following command: ALTER SESSION ENABLE ADG_REDIRECT_DML; Generation of Unique Sequence Numbers Across Shards Before Oracle Database 19c, if you needed a unique number across shards you had to manage it yourself. In Oracle Database 19c, Oracle Sharding allows you to generate globally unique sequence numbers across shards for non-primary key columns with unique constraints, or any other usage of a Sequence object which should be logically one object across all shards of a sharded database generating globally unique values, and it is handled by the sharded database. Customers often need to generate unique IDs for non-primary key columns, for example order_id, when the customer_id is the sharding key. For this case among others, this feature lets you generate unique sequence numbers across shards, while not requiring you to manage the global uniqueness of a given non-primary key column in your application. Support for Multiple PDB-Shards in the Same CDB Oracle Sharding with Oracle Database 18c supported one PDB shard in a CDB. In Oracle Database 19c, Oracle Sharding enables you to use more than one PDB in a CDB for shards or shard catalog databases, with certain restrictions. For example, this feature allows a CDB to contain shard PDBs from different sharded databases (SDBs), each with their own separate catalog databases. Multiple PDBs in a CDB allows you to consolidate several customers and applications that require separate sharded databases, but can share the same system resources for ease of management. Application Continuity for Java: Declarative Request Demarcation With the introduction of this feature, when Application Continuity for Java is configured in AUTO mode (that is service FAILOVER_TYPE=AUTO), the JDBC driver injects a beginRequest call, at runtime, after the creation of a JDBC connection with the Replay Datasource. This feature ensures Zero Downtime for Java applications and third-party connection pools, without the need to make code change.  
  7. Active Data Guard DML Redirection You can run DML operations on Active Data Guard standby databases. This enables you to run read-mostly applications, which occasionally execute DMLs, on the standby database. DML operations on a standby can be transparently redirected to and run on the primary database. This includes DML statements that are part of PL/SQL blocks. The Active Data Guard session waits until the corresponding changes are shipped to and applied to the Active Data Guard standby. Read consistency is maintained during the DML operation and the standby database on which the DML is run can view its uncommitted changes. However, all the other standby database instances can view these changes only after the transaction is committed. Note: Avoid running too may DML operations on Active Data Guard standby databases. Because the operations are actually performed on the primary, too many DMLs may impact the performance of the primary. Automatic redirection of DML operations to the primary can be configured at the system level or the session level. The session level setting overrides the system level setting.  To configure automatic redirection of DML operations for all standby sessions in an Active Data Guard environment: Set the ADG_REDIRECT_DML initialization parameter to TRUE. To configure automatic redirection of DML operations for the current session, use the following command: ALTER SESSION ENABLE ADG_REDIRECT_DML;
  8. Apex REST Enabled SQL Support As opposed to creating Database Links, Oracle Application Express installations that utilize Oracle REST Data Services (ORDS), ORDS 17.3 or later, can now execute any SQL through a REST endpoint. Developers can easily create REST Enabled SQL references by defining a name, the endpoint URL, and authentication information within Shared Components. Oracle Application Express passes the SQL or PL/SQL query to ORDS over REST, and a self-describing JSON response is returned. The JSON object contains result set meta data, the result data, and pagination details. REST Enabled SQL references can be used as the basis for all report types, such as interactive reports and classic reports, but not Interactive Grid regions. References can also be used with Calendars, JET Charts, Trees, and PL/SQL Processes. Oracle Database Links are defined within each SQL statement and work over SQL*Net (or over the internet in cloud environments), and must open a session within the remote database for each SQL or PL/SQL executed. By contrast, REST Enabled SQL references are defined at the Oracle Application Express workspace-level, work with JSON over HTTP(s) which makes them easy to use in cloud environments or over the internet. References can also scale significantly better as ORDS utilizes a connection pool on the remote database. Related Topics Oracle® Application Express App Builder User's Guide Parent topic: Application Express Web Source Modules Oracle Application Express introduces a new data source type called "Web Source Modules",  a declarative method to define references to external REST APIs and generic JSON data feeds. Web Source Modules store additional metadata about how to parse response data and map it as a virtual table with rows and columns. A module can contain one or many Web Source Operations which are the references to a concrete  external web service. Web Source Modules can also include post-processing SQL which modifies the data before being processed by the Oracle Application Express component. This SQL can be used to apply functions, aggregations, or join with local tables. Web Source Modules can be used as the basis for all report types, such as interactive reports and classic reports, but not Interactive Grid regions. These modules can also be used with Calendars, JET Charts, Trees, and PL/SQL Processes. In prior releases of Oracle Application Express, it was possible to define SOAP and REST Web services and then utilize them within limited Oracle Application Express components. Defining such services was very manual, time consuming, and error prone. The new Web Source Modules are highly declarative as they use discovery to understand and define the incoming structure of the web service. 19.1 is now Early Access : Dark Mode, Rest Enabled Web Forms, New Data Loader, Enhanced Jet Support JSON-Object Mapping This feature enables the mapping of JSON data to and from SQL object types and collection types. This feature makes it easier for programs that use SQL objects and collections to interact with JSON-based applications.  Materialized View Support for Queries containing JSON_TABLE Materialized views query rewrite has been enhanced so that queries with JSON_EXISTS, JSON_VALUE and other functions can utilize a materialized view created over a query containing JSON_TABLE function. This feature is particularly useful when the JSON documents in a table contain arrays; this type of materialized view provides fast performance for accessing data within those JSON arrays. 
  9. Hybrid Partitioned Tables The Hybrid Partition Tables feature extends Oracle Partitioning by enabling partitions to reside in both Oracle Database segments and in external files and sources. This feature significantly enhances functionality of partitioning for Big Data SQL where large portions of a table can reside in external partitions. Hybrid Partition Tables enable you to easily integrate internal partitions and external partitions into a single partition table. With this feature, you can also easily move non-active partitions to external files, such as Oracle Data Pump files, for a cheaper storage solution. Real-Time Statistics Oracle Database automatically gathers online statistics during conventional DML operations. Statistics can go stale between execution of DBMS_STATS statistics gathering jobs. By gathering some statistics automatically during DML operations, the database augments the statistics gathered by DBMS_STATS. Fresh statistics enable the optimizer to produce more optimal plans.
  10. NOTE : There is no exchange internal partition to external capability in the initial release. In a range partitioned table (by date) to move a cold partition’s data outside of the database, the customer will need to manually “unload” the data and then create a copy of the table with a new definition of the partition they want held externally. We hope to provide a patch shortly to enable this functionality.
  11. Real-Time Statistics Oracle Database automatically gathers online statistics during conventional DML operations. Statistics can go stale between execution of DBMS_STATS statistics gathering jobs. By gathering some statistics automatically during DML operations, the database augments the statistics gathered by DBMS_STATS. Fresh statistics enable the optimizer to produce more optimal plans.
  12. Automatic Database Diagnostic Monitor (ADDM) Support for Pluggable Databases (PDBs) You can now use ADDM analysis for PDBs in a multitenant environment. ADDM analysis at a PDB level enables you to tune a PDB effectively for better performance.
  13. Passwords Removed from Oracle Database Accounts Using the schema only account feature from Oracle Database release 18c, most of the Oracle Database supplied schemas (users) now have their passwords removed to prevent users from authenticating to these accounts. This enhancement does not affect the sample schemas. Sample schemas are still installed with their default passwords. For the default schemas that are schema only, administrators can still alter these accounts with passwords if they need to authenticate to the schema, but Oracle recommends changing the schemas back to a schema-only account afterward. The benefit of this feature is that administrators no longer have to periodically rotate the passwords for these Oracle Database-provided schemas. This feature also reduces the security risk of attackers using default passwords to hack into these accounts. Database Vault Operations Control for Infrastructure Database Administrators In a multitenant database, you now can use Oracle Database Vault to block common users (infrastructure DBAs, for example) from accessing local data in pluggable databases (PDBs). This enhancement prevents common users from accessing local data that resides on a PDB. It enables you to store sensitive data for your business applications and allow operations to manage the database infrastructure without having to access sensitive customer data. 
  14. While the features used by EUS met the larger set of requirements, a large group of customers just needed authentication and authorization with Active Directory. The complexity with EUS and ODS was more work and cost than most customers wanted to do to offset the little used Enterprise Domain features. Centrally Managed Users, to be part of the upcoming Oracle Database Release 18c Enterprise Edition, provides a direct connection to AD without using an intermediate directory service and without the EUS enterprise domain features. AD stores authentication and authorization data that is used by the database to authenticate users. CMU supports passwords, Kerberos and PKI certificates – like EUS does. AD users and groups can map to Oracle schemas as exclusive users or to a shared schema. AD account policies centrally manage their related policies for passwords and lockout.
  15. Livesql is now running database 19c Live SQL provides free access to an oracle database Click “Start Coding Now” to get a SQL prompt Run SQL statements or SQL Scripts Learn using Tutorials Access data in sample schemas to learn and test SQL Share SQL scripts with comments to google searchable SQL scripts It even works on your cell phone