This will find all rows in the ITEM table where PRICE is null. Similarly, you can use NULL to set a column to null in an UPDATE statement like: UPDATE DEPT. SET MGRNO = NULL. ... Nulls are one of the ...

In Azure SQL Database you can also set a HISTORY_RETENTION_PERIOD (and should be able to do it in SQL Server 2017) to control how far back in time your history will extend. Converting Existing Table ...

Null means "undefined" in SQL, ... However, as long as parents don't suddenly all decide to start naming their kids after incorrectly-escaped database inputs like "Robert'); DROP TABLE students; ...