mysql - 如何消除MySQL中的重复行？

Question

即使在运行查询SELECT DISTINCT STATES之后，我仍然得到重复项。

这是查询

SELECT COUNT(*) AS `Rows`, `STATE` FROM `bank_database` GROUP BY `STATE` ORDER BY `STATE` LIMIT 100

这是输出

我需要

 63      ANDAMAN AND NICOBAR ISLAND
 7311    ANDHRA PRADESH
 150     ARUNACHAL PRADESH
 ...
 and so on

这是我的数据库结构。

帮助。 提前致谢。

我有这个查询

SELECT DISTINCT BRANCH FROM `BANK`.`BANK_DATABASE` WHERE (BANK = '$bank_name' AND STATE = '$state_name' AND DISTRICT = '$district_name')"

上述查询对于某些银行正确，但对于某些银行则失败。

Answer 1

试试这个，肯定有一些空格。

     SELECT COUNT(*) AS `Rows`, trim(STATE) FROM `bank_database` 
     GROUP BY  trim(STATE)  
     ORDER BY trim(STATE) LIMIT 100

如果运行正常，请运行此查询来解决您的数据问题。

 update tableName set state =  trim(state);