Tuesday, December 14, 2010

Comparison of Oracle, MySQL and Postgres DBMS


Comparison are given below with include all the basic concept :-
Category Problem Assessment
MySQL Oracle8 Postgres
Elementary features Basic data types B C A
SQL C B B
Declarative constraints C A A
Programming abstractions D A C
Generation of ids C A A
National chars B A B
Transactions Transactions D A A
Locks D A A
Multiuser access C A C
Programming in DB
Stored procedures and triggers
D A A
Administration Access control A A B
Backup C A C
Data migration A B A
Portability and scalability
Portability
B A B
Scalability B A C
Performance and VLDB Query optimization B A B
Structures supporting optimization D A B
Support for OLAP D A D
Allocation of the disk space C A C
Size limits B A C
VLDB implementations D A B
Distributed databases Access to multiple databases C A C
Heterogeneous systems support D B D
Special data types Large objects B A C
Post-relational extensions D A B
Support for special data types D A C
Application development and interfaces Embedded SQL D A B
Standard interfaces B A B
Additional interfaces A A A
Web technology B A B
XML D A D
CASE D A D
Reliability Recovery C A C
Commercial issues Prices A D A
Technical support C B D
Position on the market D A D

Conclusion : Compare your Project requirements with DBMS. It depend on your application or project which is suitable for your project.

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