Logical Operators
Logical operators are used for evaluating values or expressions for true, false, or unknown. Table B-3 lists allowable logical operators.
Operator |
Use |
AND |
Logical AND |
&& |
Logical AND |
IS boolean |
Logical equal |
IS NOT boolean |
Logical equal |
OR |
Logical OR |
|| |
Logical OR |
NOT |
Logical NOT |
! |
Logical NOT |
XOR |
Logical XOR |
The
operators IS
and IS NOT
are
being added in Version 5.0.2 of MySQL. A boolean value of
TRUE
, FALSE
, or
UNKNOWN
should immediately follow these operators.
Get MySQL in a Nutshell now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.