Imp Operator

Performs a logical implication on two expressions.

result = expression1 Imp expression2

result

Any numeric variable.

expression1

Any expression.

expression2

Any expression.

The following table illustrates how result is determined:

If expression1 is

And expression2 is

Then result is

True

True

True

True

False

False

True

Null

Null

False

True

True

False

False

True

False

Null

True

Null

True

True

Null

False

Null

Null

Null

Null

The Imp operator 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

Then result is

0

0

1

0

1

1

1

0

0

1

1

1

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