sql_not(X)
Returns the logical negation of the argument X
.
This function has SQL-compatible null handling.
Syntax
sql_not(X)
Input
Argument | Type | Description |
---|---|---|
X |
|
A scalar expression or column expression that evaluates to 0
or 1 |
Return Value
sql_not(X)
returns the negation of the value of X
.
The data type of the result is integer.
If X
is N/A (null), the row is not displayed.
Example
In this example, sql_not(X)
returns the negation of the values in
colx
.
For null comparison, a column of results using the operator ~
(logical
not) is provided for comparison. For more information, see ~ (logical not).
<table cols="colx"> 1; 0; ; </table> <willbe name="sqlnot" label="SQL Null" value="sql_not(colx)"/> <willbe name="and" label="Null" value="~colx"/>