可以通过在 SELECT 子句中使用 DISTINCT 关键字来实现。 DISTINCT 适用于 SELECT 子句中指定的所有数据字段的组合。
我们有已应用的表“Student” DISTINCT 关键字如下 -
mysql> Select * from student; +------+---------+---------+-----------+ | Id | Name | Address | Subject | +------+---------+---------+-----------+ | 1 | Gaurav | Delhi | Computers | | 2 | Aarav | Mumbai | History | | 15 | Harshit | Delhi | Commerce | | 17 | Raman | Shimla | Computers | | 20 | Gaurav | Jaipur | History | +------+---------+---------+-----------+ 5 rows in set (0.00 sec) mysql> Select DISTINCT Address from student; +---------+ | Address | +---------+ | Delhi | | Mumbai | | Shimla | | Jaipur | +---------+ 4 rows in set (0.00 sec) mysql> Select DISTINCT * from student; +------+---------+---------+-----------+ | Id | Name | Address | Subject | +------+---------+---------+-----------+ | 1 | Gaurav | Delhi | Computers | | 2 | Aarav | Mumbai | History | | 15 | Harshit | Delhi | Commerce | | 17 | Raman | Shimla | Computers | | 20 | Gaurav | Jaipur | History | +------+---------+---------+-----------+ 5 rows in set (0.00 sec) mysql> Select DISTINCT name from student; +---------+ | name | +---------+ | Gaurav | | Aarav | | Harshit | | Raman | +---------+ 4 rows in set (0.00 sec)
以上就是MySQL返回结果集的行中如何过滤掉重复的行？的详细内容，更多请关注php中文网其它相关文章！
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