从时间字段中删除秒数？

Question

如何删除秒数并仅显示hh:mm？

字段类型为time。例如：

SELECT opentime, closetime FROM hours

Result:
17:00:00  |  23:00:00
17:30:00  |  23:40:00

Answer 1

SELECT
  TIME_FORMAT(opentime, "%H:%i") as opentime,
  TIME_FORMAT(closetime, "%H:%i") as closetime
FROM hours;