The operators that are allowed to be used in a check formula are known as the check formula operators.

See Operators AND and OR.

See Operator NOT.

See Operators IF, THEN, ELSE.

When you create a check, you can specify the operators in the Create Expression(s) panel of the Create Check wizard. By default, the AND operator is used to connect two or more expressions. You can specify the operators in the Formula box by either typing or selecting the displayed operators.