Learn how to optimize SQL queries for NULL values by following some best practices and techniques, such as using IS NULL or IS NOT NULL operators, avoiding NOT IN with NULL values, and more.

Default values Testing SQL queries can often involve repetitive setup for table mocks. In SQLMock, one effective way to streamline this process is by using default values. By setting reasonable ...

Using default values on database columns helps to insulate database design issues from application code. Find out how to change a column's default value at a later date using a single command.