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How to update a row in database without ID?

I've got a table with the following structure : Col1 | Col2 | Col3 A | B | C A | C | B E | D | C The primary key is (Col1,Col2,Col3). I get the data in another project and ...
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1answer
123 views

pre aggregating documents mongodb

In our current setup, most of our database calls are updates where we increment a key by 1. If all one is doing is incrementing certain keys on a document (a lot) in mongodb, and there are several ...
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1answer
367 views

How do you schedule software updates, major releases, milestones (what is this?)

What are the common terminology used to schedule software update and support. For example, I really have no clue how releases and updates differ, how often are updates released (not everyday I hope)? ...