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A comment on HSBC moves from 65 relational databases into one global MongoDB database. Parent comment

Re:HSBC moves from 65 relational databases into one global M... by sohamsankaran on Saturday June 13, 2020 @05:37AM (#23508183)
My fear is that those IBM systems running Db2 or something were counted among the 65. While it seems obvious to us that they're better off without switching those, I know of several companies in financial services that should know better that trust MongoDB for their core transaction flow.
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Re:HSBC moves from 65 relational databases into one global M... by guillaumei on Saturday June 13, 2020 @09:45AM (#23509313)
The 65 relational databases are for the same application or similar deployed in 65 countries...At least I read it in that way.
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Re:HSBC moves from 65 relational databases into one global M... by jeremyjh on Saturday June 13, 2020 @12:58PM (#23510791)
They didn't switch anything of consequence. A bank the size of HSBC has thousands of application databases. They never migrate their core transaction systems, they just build piles of shit around them ever higher.
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