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In the very early days of my career, an incident made me realise that perfoming my job irresponsibily will affect me adversely, not because it will affect my position adversely, but because it can affect my life otherwise also. I was part a team that produced a software used by a financial institution where I held my account. A bug in the software caused a failure which made several accounts, including my bank account, inaccessible! Fortunately I wasn't the one who introduced that bug and neither was other software engineer working on the product.

I previously blogged about ensuring that the “ON CONFLICT” directive is used in order to avoid vacuum from having to do additional work. I also later demonstrated the characteristics of how the use of the MERGE statement will accomplish the same thing.