|
Used to perform 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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