使用IN()运算符显示MySQL表中的选定记录
让我们首先创建一个表-
create table DemoTable( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, CustomerName varchar(100) );
使用插入命令在表中插入一些记录-
insert into DemoTable(CustomerName) values('Adam Smith');
insert into DemoTable(CustomerName) values('Chris Brown');
insert into DemoTable(CustomerName) values('David Miller');
insert into DemoTable(CustomerName) values('Carol Taylot');
insert into DemoTable(CustomerName) values('Carol Taylor');使用select语句显示表中的所有记录-
select *from DemoTable;
这将产生以下输出-
+----+--------------+ | Id | CustomerName | +----+--------------+ | 1 | Adam Smith | | 2 | Chris Brown | | 3 | David Miller | | 5 | Carol Taylor | +----+--------------+ 4 rows in set (0.00 sec)
以下是使用IN运算符显示选定记录的查询-
select *from DemoTable where Id IN(2,5);
这将产生以下输出-
+----+--------------+ | Id | CustomerName | +----+--------------+ | 2 | Chris Brown | | 5 | Carol Taylor | +----+--------------+ 2 rows in set (0.00 sec)