who is a DBA ? what is the role of a DBA

1. SINAI DESIGNERSDR.RITU BHARGAVA
D E P A R T M E N T O F C O M P U T E R S C I E N C E
ROLE OF A DBA
S O P H I A G I R L ' S C O L L E G E
( A U T O N O M O U S ) A J M E R

2. WHO IS A DBA
The DBA is responsible for
design,operations and management of
the database
DBA must be a technically competent,a
skilled diplomat and should posses
excellent communication skills.
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3. Management skills are required to plan ,coordinate
and carry out multitude of tasks during all phases of
database project and to supervise a staff.
Technical skills are needed because the DBA has to
be able to understand the complex hardware and
software issues involved,and to work with system
and application experts in solving problems.
Diplomatic skills are used to communicate with users
and determine their needs ,to negotiate agreements
on data definations and database access rights,to
mediate between users with conflicting
requirements.
Excellent communication skills are required.
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4. A DBA is responsible for one or more databases within the
organization,and concentrates on more technical issues.
DBA has many functions that vary according to the stage of
the database project.
Following are the functions or role of a DBA in an
organization
1)PLANNING THE DATABASE
2)DEVLOPING THE OPERATING DATABASE
3)ENSURING BEST DATABASE PERFORMANCE
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5. 1)PLANNING THE DATABASE
i)Preliminary database planning
ii)identifying user requirement
iii)Developing and maintaining data dictionary
iv)Designing the logical model
v)Choosing a DBMS
vi)Developing the physical model.
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6. 2)DEVELOPING THE OPERATING
DATABASE
i)Creating and loading the database
ii)Develop user's views
iii)Writing and maintaining documentation
iv)Developing and enforcing data standards.
v) Developing and enforcing application program
standard
vi)Developing operating procedures
vii)Doing user's training
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7. 3)ENSURING BEST DATABASE
PERFORMANCE
i)Monitoring high performance.
ii)Tuning and reorganizing.
iii)Keeping current on Database
improvements
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