如何將自定義值插入 MySQL 中的 auto_increment 列?
你可以藉助 INSERT 語句來實現此操作,換句話說,你可以像普通插入操作一樣簡單地插入它。語法如下 −
INSERT INTO yourTableName (yourIdColumnName,yourColumnName) values(value1,'value2'); Let us first create a table: mysql> create table InsertValueInAutoIncrement -> ( -> UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> UserName varchar(20) -> ); Query OK, 0 rows affected (0.59 sec)
現在,你可以使用插入命令在表中插入一些記錄。在此處,我們還為 auto_increment 欄位 UserId 插入自己的值。查詢如下 −
mysql> insert into InsertValueInAutoIncrement(UserName) values('John'); Query OK, 1 row affected (0.19 sec) mysql> insert into InsertValueInAutoIncrement(UserName) values('Carol'); Query OK, 1 row affected (0.17 sec) mysql> insert into InsertValueInAutoIncrement(UserName) values('Sam'); Query OK, 1 row affected (0.11 sec) mysql> insert into InsertValueInAutoIncrement(UserName) values('Bob'); Query OK, 1 row affected (0.18 sec) mysql> insert into InsertValueInAutoIncrement(UserId,UserName) values(100,'Maxwell'); Query OK, 1 row affected (0.18 sec) mysql> insert into InsertValueInAutoIncrement(UserName) values('James'); Query OK, 1 row affected (0.20 sec) mysql> insert into InsertValueInAutoIncrement(UserId,UserName) values(1000,'Larry'); Query OK, 1 row affected (0.12 sec)
使用 select 語句從表中顯示所有記錄。查詢如下 −
mysql> select *from InsertValueInAutoIncrement;
以下是該表 −
+--------+----------+ | UserId | UserName | +--------+----------+ | 1 | John | | 2 | Carol | | 3 | Sam | | 4 | Bob | | 100 | Maxwell | | 101 | James | | 1000 | Larry | +--------+----------+ 7 rows in set (0.00 sec)
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