趣谈MySQL 多个%等模糊查询

DROP TABLE IF EXISTS `people`;
CREATE TABLE `people`  (
  `id` int NOT NULL COMMENT '主键',
  `name` varchar(45) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '姓名',
  `sex` tinyint NOT NULL COMMENT '性别',
  `age` int NOT NULL COMMENT '年龄',
  `phone` varchar(45) CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci NOT NULL COMMENT '联系方式',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_0900_ai_ci ROW_FORMAT = Dynamic;

insert into people values(1,'测试人员',18,1,'13812345678');
insert into people values(2,'测测人员',19,0,'13812345679');
insert into people values(3,'人员测试',20,1,'13812345680');
insert into people values(4,'测试人员1',21,0,'13812345681');
insert into people values(5,'员人试测',22,1,'13812345682');

-- 1、模糊查询（单个条件）
select * from people where name like '%测%';

-- 2、模糊查询（多个条件）
select * from people where name like '%测%' and name like '%人%';

select * from people where name like '%测%' or name like '%人%';

-- 3、模糊查询（顺序执行）
select * from people where name like '%测%人%';

select * from people where name like '%人%测%';

-- 4、_： 表示任意单个字符。匹配单个任意字符，它常用来限制表达式的字符长度语句
select * from people where name like '测试人员_';

select * from people where name like '__人员';

-- 5、[ ]：表示括号内所列字符中的一个（类似正则表达式）。指定一个字符、字符串或范围，要求所匹配对象为它们中的任一个。
select * from people where name rlike '[试]人员';

-- 6、[^ ] ：表示不在括号所列之内的单个字符。其取值和 [] 相同，但它要求所匹配对象为指定字符以外的任一个字符 ^ 非。
select * from people where name rlike '[^试]人员';

-- 7、^：以xx开头的记录
select * from people where name rlike '^测';

-- 8、$：以xx结尾的记录
select * from people where name rlike '员$';

-- 9、.：任意单个的
select * from people where name rlike '.人员';