Imp Operator
Purpose
Used to perform a logical implication on two expressions.
Syntax
result = expr1 Imp expr2
Notes
The following table illustrates how result is determined.
If expr1 is
| And expr2 is
| result is
|
true (nonzero)
| true
| True (-1)
|
true
| false (0)
| False (0)
|
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 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 expr1 is
| And bit in expr2 is
| result is
|
0
| 0
| 1
|
0
| 1
| 1
|
1
| 0
| 0
|
1
| 1
| 1
|
Bit-wise comparisons can be performed only in Access Basic.