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Common DB Schema Change Mistakes
Why changing schema under load is hard and what to do about it
One of the easiest ways to "create a heavy load from nothing" is to write a couple of DDL commands and deploy them to production without thorough analysis and testing.
In this talk, we will discuss several widespread mistakes that many developers and DBAs regularly make during active application development, when there is a need to change DB schema – from adding new database objects or colum...