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How can I remove a value from an enum in MySQL?
Use ALTER command to remove a value from an enum in MySQL. Let us first create a table −
mysql> create table DemoTable ( `Rank` ENUM('LOW','MEDIUM','HIGH') ); Query OK, 0 rows affected (0.52 sec)
Let us check the description of table.
mysql> DESC DemoTable;
This will produce the following output −
+-------+-----------------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+-----------------------------+------+-----+---------+-------+
| Rank | enum('LOW','MEDIUM','HIGH') | YES | | NULL | |
+-------+-----------------------------+------+-----+---------+-------+
1 row in set (0.00 sec)Following is the query to remove a value from an enum in MySQL.
mysql> alter table DemoTable change `Rank` `Rank` ENUM('LOW','HIGH'); Query OK, 0 rows affected (1.19 sec) Records: 0 Duplicates: 0 Warnings: 0
Now let us check the description of table once again −
mysql> DESC DemoTable;
This will produce the following output −
+-------+--------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------------------+------+-----+---------+-------+
| Rank | enum('LOW','HIGH') | YES | | NULL | |
+-------+--------------------+------+-----+---------+-------+
1 row in set (0.00 sec)
Updated on: 30-Jul-2019
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