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Reset AUTO_INCREMENT in MySQL
Truncate the table to reset AUTO_INCREMENT −
truncate table yourTableName;
Let us first create a table −
mysql> create table DemoTable -> ( -> Id int NOT NULL AUTO_INCREMENT, -> PRIMARY KEY(Id) -> ); Query OK, 0 rows affected (0.52 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values(); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values(); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(); Query OK, 1 row affected (0.09 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
+----+ | Id | +----+ | 1 | | 2 | | 3 | | 4 | +----+ 4 rows in set (0.00 sec)
Following is the query to reset AUTO_INCREMENT −
mysql> truncate table DemoTable; Query OK, 0 rows affected (0.80 sec) Let us insert some records once again. It will by default begin from 1 for AUTO_INCREMENT: mysql> insert into DemoTable values(); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable values(); Query OK, 1 row affected (0.09 sec)
Display all records from the table −
mysql> select *from DemoTable;
Output
+----+ | Id | +----+ | 1 | | 2 | +----+ 2 rows in set (0.00 sec)
Updated on 30-Jul-2019 22:30:26
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