DELETE Sys_RlReport WHERE Id NOT IN
(SELECT MIN(Id) FROM Sys_RlReport GROUP BY employeename,bus) order BY employeename,bus)
多字段重复,通过与最小化Id比较
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DELETE Sys_RlReport WHERE Id NOT IN
(SELECT MIN(Id) FROM Sys_RlReport GROUP BY employeename,bus) order BY employeename,bus)
多字段重复,通过与最小化Id比较
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