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Find the latest staff salary and the last staff salary changes
2022-08-11 07:52:00 【A little birds】
There is such a demand to find the latest salary situation and the second latest salary situation of personnel, and then calculate an increase situation
The database used is mysql database
The form used is as follows:
Personnel list:listuser
Payroll:ry
sql display
Query the latest data according to time
SELECT a.id,a.dy_id,a.gz,max(a.time) from ry a GROUP BY dy_id
Query the second latest data according to time
SELECT a.id,a.dy_id,a.gz,a.time from ry a where a.id=( SELECT id from ry where a.dy_id=dy_id ORDER BY time LIMIT 1,1 )
Then you can perform a related query
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查找最新人员工资和上上次人员工资的变动情况