我们如何在不使用 auto_increment 值的情况下向 MySQL 表中插入记录?
是的,我们可以不使用 auto_increment 进行插入,因为它会自动插入。我们先创建一个表格 -
mysql> create table DemoTable1479 -> ( -> EmployeeId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> EmployeeSalary int -> ); Query OK, 0 rows affected (0.86 sec)
使用 insert 命令向表格中插入一些记录 -
mysql> insert into DemoTable1479(EmployeeSalary) values(6800); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable1479(EmployeeSalary) values(5600); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable1479(EmployeeSalary) values(5700); Query OK, 1 row affected (0.16 sec) mysql> insert into DemoTable1479(EmployeeSalary) values(6900); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable1479(EmployeeSalary) values(15000); Query OK, 1 row affected (0.11 sec)
使用 select 语句从表格中显示所有记录 -
mysql> select * from DemoTable1479;
这将生成以下输出 -
+------------+----------------+ | EmployeeId | EmployeeSalary | +------------+----------------+ | 1 | 6800 | | 2 | 5600 | | 3 | 5700 | | 4 | 6900 | | 5 | 15000 | +------------+----------------+ 5 rows in set (0.00 sec)
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