# `ST_Y` ## Syntax `DOUBLE ST_Y(POINT point)` ## Description 当point是一个合法的POINT类型时,返回对应的Y坐标值 ## Examples ``` mysql> SELECT ST_Y(ST_Point(24.7, 56.7)); +----------------------------+ | st_y(st_point(24.7, 56.7)) | +----------------------------+ | 56.7 | +----------------------------+ ```