To check if table exists, use the following syntax −
CREATE TABLE IF NOT EXISTS yourTableName ( yourColumnName1 dataType, . . . . N );
Here, we will try to create a table that already exists and then it will produce a warning message “Table already exists”. Let us first create a table. This table already exists −
mysql> CREATE TABLE IF NOT EXISTS DemoTable ( Id int ); Query OK, 0 rows affected, 1 warning (0.06 sec)
The warning message is as follows −
mysql> show warnings;
Output
+-------+------+-------------------------------------+ | Level | Code | Message | +-------+------+-------------------------------------+ | Note | 1050 | Table 'DemoTable' already exists | +-------+------+-------------------------------------+ 1 row in set (0.00 sec)
If table does not already exist, then it will get created −
mysql> CREATE TABLE IF NOT EXISTS DemoTable2 ( Id int ); Query OK, 0 rows affected (0.71 sec)