Why do companies spend a lot of money on Oracle?

Question

Why not just postgresql or mysql? Is the oracle very indispensable in some cases? In this case?

Answer 1

The above arguments are down.

Oracle provides materials that others do not, and do it where it matters.

• Oracle provides true read consistency without affecting its performance.
• Oracle provides backup and recovery technologies that do not affect its performance.
• Oracle , (, FLASHBACK, RAC, Partitioning ( MySQL - ), ..)

: Oracle , , . .

, .

Answer 2

, Oracle , Oracle, , ( Oracle DBA ), Oracle pro.

• Oracle ( ) .
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• Oracle - (, , , , . SQL Server/Oracle/MySQL, Oracle , , ).

Answer 3

() Oracle.