I have professionally worked with four different SQL database types PostgreSQL , MySQL & MariaDB (InnoDB), MSSQL SQL Server 2008+ and Oracle 19c +. Over the course of that time I have been asked: Choosing the right query pattern for the problem Using NOT EXISTS / EXISTS where appropriate Avoidi...

Source: [Dev.to](https://dev.to/andreimerlescu/sql-design-query-reference-67f)

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