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法律研究如何对两个 MySQL LIKE 语句进行 OR 操作？
使用以下语法可以对两个 like 语句进行 OR 操作 −
SELECT *FROM yourTableName WHERE (yourColumnName like '%yourValue1%' OR yourColumnNamelike '%yourValue2%') AND yourColumnName = yourValue;
为了理解以上语法，我们先创建一个表。创建表所用的查询如下 −
mysql> create table ORLikeDemo -> ( -> Id int not null auto_increment, -> FirstName varchar(15), -> LastName varchar(15), -> Primary Key(Id) -> ); Query OK, 0 rows affected (1.19 sec)
使用 insert 命令在表内插入一些记录。查询如下所示 −
mysql> insert into ORLikeDemo(FirstName,LastName) values('John','Smith');
Query OK, 1 row affected (0.13 sec)
mysql> insert into ORLikeDemo(FirstName,LastName) values('Carol','Taylor');
Query OK, 1 row affected (0.23 sec)
mysql> insert into ORLikeDemo(FirstName,LastName) values('John','Doe');
Query OK, 1 row affected (0.11 sec)
mysql> insert into ORLikeDemo(FirstName,LastName) values('Bob','Jones');
Query OK, 1 row affected (0.20 sec)
mysql> insert into ORLikeDemo(FirstName,LastName) values('David','Miller');
Query OK, 1 row affected (0.17 sec)
mysql> insert into ORLikeDemo(FirstName,LastName) values('Mike','Williams');
Query OK, 1 row affected (0.11 sec)
mysql> insert into ORLikeDemo(FirstName,LastName) values('Sam','Taylor');
Query OK, 1 row affected (0.14 sec)使用 select 语句显示表中的所有记录。查询如下所示 −
mysql> select *from ORLikeDemo;
输出如下 −
+----+-----------+----------+ | Id | FirstName | LastName | +----+-----------+----------+ | 1 | John | Smith | | 2 | Carol | Taylor | | 3 | John | Doe | | 4 | Bob | Jones | | 5 | David | Miller | | 6 | Mike | Williams | | 7 | Sam | Taylor | +----+-----------+----------+ 7 rows in set (0.00 sec)
以下是使用两个 LIKE 和 OR 操作符的查询 −
mysql> select *from ORLikeDemo where (LastName like '%Smith%' OR LastName like'%Doe%') AND Id = 3;
输出如下 −
+----+-----------+----------+ | Id | FirstName | LastName | +----+-----------+----------+ | 3 | John | Doe | +----+-----------+----------+ 1 row in set (0.03 sec)
更新于： 30-Jul-2019
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