And Operator

Description

Used to perform a logical conjunction on two expressions.

Syntax

result = expression1 And expression2

The And operator syntax has these parts:

Part	Description

result	Any numeric variable.
expression1	Any expression.
expression2	Any expression.

Remarks

If, and only if, both expressions evaluate True, result is True. If either expression evaluates False, result is False. The following table illustrates how result is determined:

If expression1 is	And expression2 is	The result is

True	True	True
True	False	False
True	Null	Null
False	True	False
False	False	False
False	Null	False
Null	True	Null
Null	False	False
Null	Null	Null

The And operator also performs a bit-wise comparison of identically positioned bits in two numeric expressions and sets the corresponding bit in result according to the following truth table:

If bit in expression1 is	And bit in expression2 is	The result is

0	0	0
0	1	0
1	0	0
1	1	1

See Also

Operator Precedence.

Example

This example uses the And operator to perform a logical conjunction on two expressions.

A = 10: B = 8: C = 6 : D = Null    ' Initialize variables.
MyCheck = A > B And B > C    ' Returns True.
MyCheck = B > A And B > C    ' Returns False.
MyCheck = A > B And B > D    ' Returns Null.
MyCheck = A And B            ' Returns 8 (bit-wise comparison).