如何在MySQL中的列之间搜索？
使用BETWEEN子句在列之间搜索。让我们首先创建一个表-
mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Score1 int, Score2 int );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable(Score1,Score2) values(45,65); mysql> insert into DemoTable(Score1,Score2) values(450,680); mysql> insert into DemoTable(Score1,Score2) values(800,900);
使用select语句显示表中的所有记录-
mysql> select *from DemoTable;
输出结果
+----+--------+--------+ | Id | Score1 | Score2 | +----+--------+--------+ | 1 | 45 | 65 | | 2 | 450 | 680 | | 3 | 800 | 900 | +----+--------+--------+ 3 rows in set (0.00 sec)
这是在MySQL中的列之间搜索的查询。
mysql> select *from DemoTable where 850 between Score1 and Score2;
输出结果
+----+--------+--------+ | Id | Score1 | Score2 | +----+--------+--------+ | 3 | 800 | 900 | +----+--------+--------+ 1 row in set (0.00 sec)