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How can I implement an interval condition for due dates correctly in MySQL?
Let us first create a table −
mysql> create table DemoTable (DueDate date); Query OK, 0 rows affected (0.92 sec)
Example
Insert some records in the table using insert command −
mysql> insert into DemoTable values('2019-01-12');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable values('2019-04-01');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('2019-07-19');
Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
+------------+ | DueDate | +------------+ | 2019-01-12 | | 2019-04-01 | | 2019-07-19 | +------------+ 3 rows in set (0.00 sec)
Following is the query to implement an interval condition correctly for dates and increments the months by 5 for every value in the column −
mysql> update DemoTable set DueDate=date_add(DueDate,interval 5 MONTH); Query OK, 3 rows affected (0.19 sec) Rows matched: 3 Changed: 3 Warnings: 0
Let us check the table records once again −
mysql> select *from DemoTable;
Output
+------------+ | DueDate | +------------+ | 2019-06-12 | | 2019-09-01 | | 2019-12-19 | +------------+ 3 rows in set (0.00 sec)
Updated on: 02-Jul-2020
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