MySQL -> 创建只有小时和分钟的表

Question

I need to save only hours (FORMAT 24) in a column 'HORAINICIAL' of my table. I don't want YYYY/MM/DD.

CREATE TABLE IF NOT EXISTS `claritytractor`.`turno` (
  `IDTURNO` INT(11) NOT NULL AUTO_INCREMENT,
  `NOMBRE` VARCHAR(150) NULL DEFAULT NULL,
  `CANTIDADHORAS` INT(11) NULL DEFAULT NULL,
  `HORAINICIAL` DATE NULL DEFAULT NULL,
  `COLACION` INT(11) NULL DEFAULT NULL,
  `FECHAMODIFICACION` DATETIME NULL DEFAULT NULL,
  `STATUS` INT(11) NULL DEFAULT NULL,
  PRIMARY KEY (`IDTURNO`))
ENGINE = InnoDB
DEFAULT CHARACTER SET = latin1;

This is my INSERT:

    INSERT INTO `claritytractor`.`turno` (`NOMBRE`, `CANTIDADHORAS`, `HORAINICIAL`, `COLACION`, `FECHAMODIFICACION`, `STATUS`) VALUES ('Normal', 8, '08:00:00', '1', '2016-12-20', '0');

Answer 1

If you are not storing a full date, it is best to use simpler data types to store the value, and modify the value on its way in and out.

Define your field HORAINICIAL as INT instead of DATE , and then use either the number of hours (eg 8) directly, or use HOUR() to convert a DATE value into just hours. When extracting the time back out, it can be converted back to a timestamp given the source date if needed.

For more information on the HOUR() command, read this .