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How to use the name of the current database to delete it in MySQL?
To get the current database, you can use the SELECT DATABASE() −
select database();
Following is the syntax −
set @anyVariableName = database();
select @anyVariableName;
set @anyVariableName2 = concat('drop database ', @yourVariableName);
prepare anyVariableName3 from @yourVariableName2;
execute yourVariableName3;Let us execute the above query in order to get current database and delete it −
mysql> set @currentDatabase = database();
Query OK, 0 rows affected (0.00 sec)
mysql> select @currentDatabase;
+------------------+
| @currentDatabase |
+------------------+
| employeeonboard |
+------------------+
1 row in set (0.00 sec)
mysql> set @sqlQuery = concat('drop database ', @currentDatabase);
Query OK, 0 rows affected (0.00 sec)
mysql> prepare stmt from @sqlQuery;
Query OK, 0 rows affected (0.04 sec)
Statement prepared
mysql> execute stmt;
Query OK, 0 rows affected (0.56 sec)In order to check whether the database exists now, use the SELECT DATABASE() −
mysql> select database();
This will produce the following output −
+------------+ | database() | +------------+ | NULL | +------------+ 1 row in set (0.00 sec)
Updated on: 19-Nov-2020
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