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Get the difference between dates and calculate salary with MySQL?
Let’s say you need to get the difference between dates (JoiningDate – EndDate) of a month i.e. days to calculate the salary. The daily-wage salary is let’s say 300; therefore for 20 days, it will 6000. In the same way, for 27 days, it will be 8100.
For our example, let us first create a table
mysql> create table DemoTable -> ( -> JoinDate date, -> EndDate date -> , -> Value int -> ); Query OK, 0 rows affected (1.16 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('2019-01-01','2019-01-31',500);
Query OK, 1 row affected (0.37 sec)
mysql> insert into DemoTable values('2019-02-12','2019-02-25',900);
Query OK, 1 row affected (0.22 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
This will produce the following output −
+------------+-------------+-------+ | JoinDate | EndDate | Value | +------------+-------------+-------+ | 2019-01-01 | 2019-01-31 | 500 | | 2019-02-12 | 2019-02-25 | 900 | +------------+-------------+-------+ 2 rows in set (0.00 sec)
Following is the query to calculate the salary. For date difference, DATEDIFF() is used −
mysql> select ABS(DATEDIFF(JoinDate,EndDate) * Value) AS Total from DemoTable;
Output
This will produce the following output −
+-------+ | Total | +-------+ | 15000 | | 11700 | +-------+ 2 rows in set (0.14 sec)
Updated on: 30-Jun-2020
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