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And Operator

Updated: March 2009

Performs a logical conjunction on two expressions.

result = expression1 And expression2

result

Any numeric variable.

expression1

Any expression.

expression2

Any expression.

If, and only if, both expressions evaluate to True, result is True. If either expression evaluates to False, result is False. The logical operation is not short-circuited. All expressions are evaluated.

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

Date

History

Reason

March 2009

Added sentence stating that all expressions are evaluated.

Customer feedback.

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