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8.2.3 And Operator

Used to perform a logical conjunction on two expressions.
 

Syntax

result = expression1 And expression2

Arguments

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

Remarks

If, and only if, both expressions evaluate to True, result is True. If either expression evaluates to 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 bitwise comparison of identically positioned bits in two numeric expressions and sets the corresponding bit in result according to the following 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
 


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