使用MySQL查询查找所有以字母“ a”,“ b”或“ c”开头的名称?
您需要使用带有OR运算符的LIKE来查找以a或b或c开头的所有名称。语法如下:
SELECT *FROM yourTableName WHERE yourColumnName like 'A%' or yourColumnName like 'B%' or yourColumnName like 'C%';
上面的查询查找所有仅以字母“ a”或“ b”或“ c”开头的名称。为了理解上述语法,让我们创建一个表。创建表的查询如下:
mysql> create table AllNamesStartWithAorBorC-> (
-> Id int NOT NULL AUTO_INCREMENT,
-> EmployeeName varchar(20),
-> PRIMARY KEY(Id)
-> );
使用insert命令在表中插入一些记录。查询如下:
mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('Adam');mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('Bob');
mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('baden');
mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('Carol');
mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('Mike');
mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('Larry');
mysql> insert into AllNamesStartWithAorBorC(EmployeeName) values('Chris');
使用select语句显示表中的所有记录。查询如下:
mysql> select *from AllNamesStartWithAorBorC;
以下是输出:
+----+--------------+| Id | EmployeeName |
+----+--------------+
| 1 | Adam |
| 2 | Bob |
| 3 | baden |
| 4 | Carol |
| 5 | Mike |
| 6 | Larry |
| 7 | Chris |
+----+--------------+
7 rows in set (0.00 sec)
这是查找以a或b或c开头的名称的查询。查询如下:
mysql> select *from AllNamesStartWithAorBorC where EmployeeName like 'A%' or EmployeeName like 'B%' or-> EmployeeName like 'C%';
以下是输出:
+----+--------------+| Id | EmployeeName |
+----+--------------+
| 1 | Adam |
| 2 | Bob |
| 3 | baden |
| 4 | Carol |
| 7 | Chris |
+----+--------------+
5 rows in set (0.00 sec)
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