To reset auto-incrementing column, use TRUNCATE TABLE command. After that, on insertion, it will reset the column.
Let us first create a table −
mysql> create table DemoTable1888 ( Id int NOT NULL AUTO_INCREMENT, PRIMARY KEY(Id) ); Query OK, 0 rows affected (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1888 values(); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1888 values(); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1888 values(); Query OK, 1 row affected (0.00 sec)
Display some records in the table using insert command −
mysql> select * from DemoTable1888;
This will produce the following output −
+----+ | Id | +----+ | 1 | | 2 | | 3 | +----+ 3 rows in set (0.00 sec)
Here is the query to reset auto-incrementing column −
mysql> truncate table DemoTable1888; Query OK, 0 rows affected (0.00 sec) mysql> select * from DemoTable1888; Empty set (0.00 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1888 values(); Query OK, 1 row affected (0.00 sec) mysql> insert into DemoTable1888 values(); Query OK, 1 row affected (0.00 sec)
Display some records in the table using insert command −
mysql> select * from DemoTable1888;
This will produce the following output −
+----+ | Id | +----+ | 1 | | 2 | +----+ 2 rows in set (0.00 sec)