Question

我正在使用MySQL并出现sql错误。我需要为日期时间和每个不同的日期时间设置不同的列，我想显示max impact_id

选择max（impact_id），不同的datetim 来自新闻其中impact_id不为null datetim不为空按datetim分组按datetim asc

排序

我收到错误

 SQL Error (1064): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'distinct datetim from news where impact_id is not null and

datetim不为空'

    CREATE TABLE `news` (
    `datetim` DATETIME NULL DEFAULT NULL,
    `symbol` VARCHAR(50) NULL DEFAULT NULL,
    `impact` VARCHAR(50) NULL DEFAULT NULL,
    `_id` MEDIUMINT(9) NOT NULL AUTO_INCREMENT,
    `impact_id` INT(11) NULL DEFAULT NULL,
    PRIMARY KEY (`_id`)
)
COLLATE='utf8_general_ci'
ENGINE=InnoDB
AUTO_INCREMENT=3072
;

Answer 1

select distinct max(impact_id),datetim from news where impact_id is not null and datetim is not null group by datetim order by datetim asc

MYSQL错误1064，如何解决？

1 个答案: