Categories:: Conditional expression functions

BOOLOR¶

Computes the Boolean OR of two numeric expressions. In accordance with Boolean semantics:

Non-zero values (including negative numbers) are regarded as True.
Zero values are regarded as False.

As a result, the function returns:

True if both expressions are non-zero or one expression is non-zero and the other expression is zero or NULL.
False if both expressions are zero.
NULL if both expressions are NULL or one expression is NULL and the other expression is zero.

See also:: BOOLAND , BOOLNOT , BOOLXOR

Syntax¶

BOOLOR( expr1 , expr2 )

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Examples¶

SELECT BOOLOR(1, 2), BOOLOR(-1.35, 0), BOOLOR(3, NULL), BOOLOR(0, 0), BOOLOR(NULL, 0), BOOLOR(NULL, NULL);

+--------------+------------------+-----------------+--------------+-----------------+--------------------+
| BOOLOR(1, 2) | BOOLOR(-1.35, 0) | BOOLOR(3, NULL) | BOOLOR(0, 0) | BOOLOR(NULL, 0) | BOOLOR(NULL, NULL) |
|--------------+------------------+-----------------+--------------+-----------------+--------------------|
| True         | True             | True            | False        | NULL            | NULL               |
+--------------+------------------+-----------------+--------------+-----------------+--------------------+

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