ABS(X)
Returns the absolute (non-negative) value of X
. If X
is not a number, it is converted to a numeric type.
SELECT ABS(42); +---------+ | ABS(42) | +---------+ | 42 | +---------+ SELECT ABS(-42); +----------+ | ABS(-42) | +----------+ | 42 | +----------+ SELECT ABS(DATE '1994-01-01'); +------------------------+ | ABS(DATE '1994-01-01') | +------------------------+ | 19940101 | +------------------------+
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https://mariadb.com/kb/en/abs/