10 SQL Tricks that You Didn't Think Were Possible

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Anzeige

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
NoSQL? No, SQL!
10 SQL Tricks
That You Di...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
NoSQL? No, SQL!
10 SQL Tricks
To Convince...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why are you here?
Because clickbait headl...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Me – @lukaseder
SQL is a device whose mys...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why do I talk about SQL?
SQL is the only ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why doesn’t anyone else talk about SQL?

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why doesn’t anyone else talk about SQL?
¯...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What is SQL?
What is
SQL?

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What is SQL?
SQL is the original
microser...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What is SQL?
SQL is the original
microser...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Who thinks this is SQL?
SELECT *
FROM per...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Who thinks this is SQL?
@Entity
@Table(na...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Or this…?
@OneToMany(mappedBy = "destCust...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Think again!

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
This is also SQL
-- Query from http://exp...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
This is also SQL: Generating the Mandelbr...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SQL:1999 is turing complete
SQL:1999 is
t...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SQL:1999 is turing complete

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Seriously, what does that mean?
Any progr...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
The strength of a 4GL language
You tell t...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Which do you feel is more awesome? This?
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Which do you feel is more awesome? Or thi...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
That’s why the company is called “Oracle”

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What’s the problem with SQL?
What’s the
p...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What’s the problem with SQL? – SQL code
W...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What’s the problem with SQL? – COBOL code...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What’s the problem with SQL? – ALL CAPS!!...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why people don’t like SQL
The syntax
is a...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why people don’t like SQL
Declarative
thi...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why people should like SQL
Reporting is
«...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why people should like SQL
Bulk data
proc...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why people should like SQL
Ad-hoc
analyti...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why people should like SQL
By «very easy»...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SQL is the worst
form of database
queryin...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Remember this from this talk: The SQL mus...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Remember this from this talk: The SQL mus...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Remember this from this talk: The SQL mus...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Remember this from this talk: The SQL mus...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
What you came here for
Enough bla bla
Wha...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Are you really ready?
This presentation
h...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Speaking of slides: Let’s thank our patro...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Speaking of slides: Let’s thank our patro...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM pe...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM pe...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM pe...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM (
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM (
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM (
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table
SELECT *
FROM su...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table – Compare it to ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table – Compare it to ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
1. Everything is a table – Compare it to ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
Com...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
-- ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
WIT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
SEL...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Remember?
-- Query from http://explainext...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
2. Data Generation with Recursive SQL
App...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
What is a r...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
What is a r...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
But first, ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
-- Aggregat...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
-- Aggregat...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
-- Aggregat...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
-- Aggregat...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
-- Aggregat...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
-- Aggregat...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Let this settle a bit
Image credit: https...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Let this settle a bit
Image credit: https...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
This is the...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
This is wha...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
3. Running total calculations
This is how...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SUM(t.amount) OVER (
PARTITION BY t.accou...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SUM(t.amount) OVER (
PARTITION BY t.accou...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SUM(t.amount) OVER (
PARTITION BY t.accou...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
SUM(t.amount) OVER (
PARTITION BY t.accou...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Now we have the tool set.
Remember these ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Now we have the tool set. Are you ready?
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Don’t worry if this is how you feel:
Expe...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gaps

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gaps

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Easy...
4. Finding the largest series wit...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Still easy...
4. Finding the largest seri...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Now, what happens if we subtract...?
4. F...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Easy explanation:
1. ROW_NUMBER() never h...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So, just group by this difference!
4. Fin...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
4. Finding the largest series with no gap...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
“Tabibitosan method”
(Japanese: the trave...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
OK?

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
That’s ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
LEAD() ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
SELECT
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
SELECT ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
SELECT
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
SELECT ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
SELECT
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
| ID | ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
5. Finding the length of a series
WITH
tr...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Still OK?
Image credit: https://www.flick...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
What i...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
For ea...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
... fi...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Desired result:
6. The subset sum problem...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
Let’s ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
There ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
-- All...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Maybe, if I just hide, the query will go ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
What a...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
What a...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
What a...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
What a...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
What a...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
-- All the possible 2N sums
WITH sums(sum...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
-- All the possible 2N sums
WITH sums(sum...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
-- All the possible 2N sums
WITH sums(sum...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
-- All the possible 2N sums
WITH sums(sum...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
-- All the possible 2N sums
WITH sums(sum...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
-- All the possible 2N sums
WITH sums(sum...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
... fi...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
-- All...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
-- All...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
R × S
Ranks = {A, K, Q, J, 10, 9, 8, 7, 6...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
6. The subset sum problem with SQL
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
WITH sums(sum, id, calc) AS (
SELECT item...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Excellent!

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
The running to...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
| DATE | AMOUN...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
| DATE | AMOUN...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
| DATE | AMOUN...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
| DATE | AMOUN...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
Reactive
progr...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
How to do it?

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
How to do it?
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
How to do it?
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
How to do it?
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
How to do it?
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
SELECT ... FRO...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
MODEL
-- The s...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
MODEL
-- The s...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
MODEL
-- The s...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
MODEL
-- The s...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
SELECT *
FROM ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
SELECT *
FROM ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
SELECT *
FROM ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
SELECT *
FROM ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
SELECT *
FROM ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
Reactive SQL:
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
Read the white...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
7. Capping a running total
Extra credit:
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
| ID | VALUE_DATE | AMOUNT | LEN | TRIGGE...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
Trigge...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
How to...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
Ready?

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
SELECT...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
| ID |...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
Read t...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition
Extra ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition (not k...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition (not k...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
8. Time series pattern recognition (not k...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
Now that you’r...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
| NAME | TITLE...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Pivoting
9. Pivoting and unpivoting
| NAM...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Unpivoting
9. Pivoting and unpivoting
| N...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Only PostgreSQL so far
9. Pivoting and un...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
All others
9. Pivoting and unpivoting
SEL...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
SELECT
actor_i...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
SELECT somethi...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
SELECT somethi...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
That’s it

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
Pivoting:
Valu...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
9. Pivoting and unpivoting
Image credit: ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
XML and JSON in
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
Image credit: ht...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
JSON is just XML...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
Everyone knows:
...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
Corollary:
JSON ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
Side note
XSLT i...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
<actors>
<actor>...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
WITH RECURSIVE
x...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
WITH RECURSIVE
x...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
WITH RECURSIVE
x...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10. Abusing XML and JSON
WITH RECURSIVE
x...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
10 SQL tricks to convince you SQL is awes...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why do I talk about SQL?
SQL is the only ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why do I talk about SQL?
Not a single,
ex...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Why doesn’t anyone else talk about SQL?
¯...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Can I write SQL in Java?

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Can I write SQL in Java? – Yes. With jOOQ

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Can I write SQL in Java? – Yes. With jOOQ

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Can I write SQL in Java? – Yes. With jOOQ

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
So what’s the key takeaway?
1. Can you do...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
If you haven’t had enough
Google «10 SQL ...

Copyright (c) 2009-2016 by Data Geekery GmbH. Slides licensed under CC BY SA 3.0
Thank you
Check out our trainings:
http:/...

Slideshare teilen

LinkedIn
Facebook
Twitter

Einbetten

Größe (px)

Ähnliche Slideshows am Ende anzeigen

WordPress-Shortcode

Link

Teilen
E-Mail

Java 9: The (G1) GC Awakens! by Monica Beckwith 39730 views
Advanced Production Debugging by Takipi 135689 views
In Search of Segmentation by Adrian Cockcroft 265562 views
Project Jigsaw in JDK 9: Modularity... by C4Media 38391 views
Scala Days NYC 2016 by Martin Odersky 74223 views
Java SE 8 best practices by Stephen Colebourne 101013 views

Auf Slideshare anzeigen

1 von 273 Anzeige

Auf Slideshare anzeigen

1 von 273 Anzeige