我有一个由 COALESCE 语法组成的查询。COALESCE 语法只是查找文件的审核日期。在我的 WHERE 语句中,我只想从AuditDate
别名字段输出已审核的文件库,但我不起作用。这是我的查询。
SELECT COALESCE(qua.starttime, prd.starttime) AS `AuditDate`,
prd.employeeno AS `EmployeeNo`,
prd.starttime AS `StartTime`,
prd.endtime AS `EndTime`
FROM production prd
LEFT JOIN qualityaudit qua
ON prd.id=qua.id
WHERE `AuditDate` BETWEEN '2011-10-01 00:00:00' AND '2011-10-01 23:59:59';
任何人都可以帮助我如何让这个查询正确吗?