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Select data and set value to boolean based on timestamp column in MySQL
For this, use IF(). Let us first see the current date −
mysql> select curdate(); +------------+ | curdate() | +------------+ | 2019-12-10 | +------------+ 1 row in set (0.00 sec)
Let us first create a table −
mysql> create table DemoTable1890 ( DueDate timestamp ); Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1890 values('2017-12-10');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1890 values('2021-12-10');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1890 values('2018-04-24');
Query OK, 1 row affected (0.00 sec)
mysql> insert into DemoTable1890 values('2020-05-11');
Query OK, 1 row affected (0.00 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1890;
This will produce the following output −
+---------------------+ | DueDate | +---------------------+ | 2017-12-10 00:00:00 | | 2021-12-10 00:00:00 | | 2018-04-24 00:00:00 | | 2020-05-11 00:00:00 | +---------------------+ 4 rows in set (0.00 sec)
Here is the query to select data and set value based on timestamp column −
mysql> select if(DueDate > curdate() - interval 2 year,false,true) as Status from DemoTable1890;
This will produce the following output −
+--------+ | Status | +--------+ | 1 | | 0 | | 0 | | 0 | +--------+ 4 rows in set (0.00 sec)
Updated on: 27-Dec-2019
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