BIGINT floor(DOUBLE x)
Returns the largest integer value less than or equal to x
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:::tip Another alias for this function is dfloor
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mysql> select floor(1); +------------+ | floor(1.0) | +------------+ | 1 | +------------+ mysql> select floor(2.4); +------------+ | floor(2.4) | +------------+ | 2 | +------------+ mysql> select floor(-10.3); +--------------+ | floor(-10.3) | +--------------+ | -11 | +--------------+
FLOOR, DFLOOR