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How can we provide a date with only year (zero months & zero days) value in MySQL?
We can store a date with only year value and have zero months as well as zero-days in MySQL table by disabling NO_ZERO_IN_DATE mode. If this mode is enabled then MySQL will count such kind of date as invalid date and stores all zeros.
mysql> Insert into year_testing (OrderDate) values('2017:00:00');
Query OK, 1 row affected (0.09 sec)
mysql> select * from year_testing;
+------------+
| OrderDate |
+------------+
| 2017-00-00 |
+------------+
1 row in set (0.00 sec)
mysql> SET sql_mode = 'NO_ZERO_IN_DATE';
Query OK, 0 rows affected (0.00 sec)
mysql> Insert into year_testing(OrderDate) values('2017:00:00');
Query OK, 1 row affected, 1 warning (0.04 sec)
mysql> Select * year_testing;
+------------+
| OrderDate |
+------------+
| 2017-00-00 |
| 0000-00-00 |
+------------+
1 rows in set (0.00 sec)
Updated on: 28-Jan-2020
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