Important Points About SQL IS NULL

IS NULL Operator in SQL

IS NULL Operator in SQL is used to test for empty or missing values in a column. It checks if the specified expression evaluates to NULL, if it evaluates to NULL, it returns TRUE; otherwise, it returns FALSE....

Syntax

SQL IS NULL syntax is:...

SQL IS NULL Examples

Let’s look at some examples of the IS NULL operator in SQL. These examples will help in understanding the working of IS NULL in SQL....

Important Points About SQL IS NULL

SQl IS NULL is used to detect any rows that contain a NULL value in its column. IS NULL operator is mostly used with WHERE clause in SQL.We can use IS NULL operator on multiple columns using OR operator.Using COUNT function we can count total number of NULL values in SQL.We can UPDATE or DELETE the NULL values, after filtering them with IS NULL operator....