Why Banks or Financial Companies prefer Oracle than other RDBMS for their "Core" systems?

Posted by edwin.nathaniel on Stack Overflow See other posts from Stack Overflow or by edwin.nathaniel
Published on 2010-04-23T19:31:42Z Indexed on 2010/04/23 19:33 UTC
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Oracle

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mysql

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sql-server

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bank

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postgresql

I'd like to know why most Banks or Financial companies prefer Oracle than other RDBMS for their core systems (the absolutely minimum features that a Bank must support). I found a few answers that didn't satisfy me. For example: Oracle has more features. But features for what? Can't you implement that in application level if you were not using Oracle?

Could someone please describe a bit more technical but still on high-level overview of what the bank needs and how Oracle would solve it and the others can't or don't have the features yet?

I came from the web-app (web 2.0) crowd who normally hear news about MySQL, PostgreSQL or even key-value/column-oriented storage solution. I have almost zero knowledge on how Banks or Financial companies operates from technical perspective.

Thank you, Ed

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