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法律研究在单个 MySQL 查询中实现多个 LIKE 运算符
要实现多个 LIKE 子句，请遵循以下语法 −
select * from yourTableName
where yourColumnName1 LIKE ('%yourValue1%' or yourColumnName2 LIKE '%yourValue2%') or (yourColumnName3 LIKE '%yourValue3');首先，让我们创建一个表 −
mysql> create table DemoTable1534 -> ( -> ClientId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> ClientName varchar(20), -> ClientAge int, -> ClientCountryName varchar(20) -> ); Query OK, 0 rows affected (0.78 sec)
使用 insert 命令在表中插入一些记录 −
mysql> insert into DemoTable1534(ClientName,ClientAge,ClientCountryName) values('Chris Brown',29,'AUS');
Query OK, 1 row affected (0.21 sec)
mysql> insert into DemoTable1534(ClientName,ClientAge,ClientCountryName) values('David Miller',49,'UK');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1534(ClientName,ClientAge,ClientCountryName) values('John Doe',43,'US');
Query OK, 1 row affected (0.22 sec)
mysql> insert into DemoTable1534(ClientName,ClientAge,ClientCountryName) values('Adam Smith',38,'US');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1534(ClientName,ClientAge,ClientCountryName) values('Carol Taylor',36,'UK');
Query OK, 1 row affected (0.16 sec)使用 select 语句显示表中的所有记录 −
mysql> select * from DemoTable1534;
这会产生以下输出 −
+----------+--------------+-----------+-------------------+ | ClientId | ClientName | ClientAge | ClientCountryName | +----------+--------------+-----------+-------------------+ | 1 | Chris Brown | 29 | AUS | | 2 | David Miller | 49 | UK | | 3 | John Doe | 43 | US | | 4 | Adam Smith | 38 | US | | 5 | Carol Taylor | 36 | UK | +----------+--------------+-----------+-------------------+ 5 rows in set (0.00 sec)
以下是在单个查询中使用多个 LIKE 运算符的查询 −
mysql> select * from DemoTable1534
-> where ClientName LIKE ('%Doe%' or ClientAge LIKE '%38%') or (ClientCountryName LIKE '%S');这会产生以下输出 −
+----------+-------------+-----------+-------------------+ | ClientId | ClientName | ClientAge | ClientCountryName | +----------+-------------+-----------+-------------------+ | 1 | Chris Brown | 29 | AUS | | 3 | John Doe | 43 | US | | 4 | Adam Smith | 38 | US | +----------+-------------+-----------+-------------------+ 3 rows in set, 5 warnings (0.00 sec)
更新于: 12-12-2019
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