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Subtracting a day in MySQL
To subtract a day in MySQL, use the DATE_SUB() method. Let us first create a table −
mysql> create table DemoTable -> ( -> AdmissionDate timestamp -> ); Query OK, 0 rows affected (1.05 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('2019-01-01');
Query OK, 1 row affected (0.10 sec)
mysql> insert into DemoTable values('2018-12-31');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable values('2017-03-13');
Query OK, 1 row affected (0.19 sec)
mysql> insert into DemoTable values('2019-01-02');
Query OK, 1 row affected (0.08 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+---------------------+ | AdmissionDate | +---------------------+ | 2019-01-01 00:00:00 | | 2018-12-31 00:00:00 | | 2017-03-13 00:00:00 | | 2019-01-02 00:00:00 | +---------------------+ 4 rows in set (0.00 sec)
Here is the query to subtract a day−
mysql> select date_sub(AdmissionDate,interval 1 day) from DemoTable;
This will produce the following output −
+----------------------------------------+ | date_sub(AdmissionDate,interval 1 day) | +----------------------------------------+ | 2018-12-31 00:00:00 | | 2018-12-30 00:00:00 | | 2017-03-12 00:00:00 | | 2019-01-01 00:00:00 | +----------------------------------------+ 4 rows in set (0.00 sec)
Updated on: 13-Dec-2019
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