Question

我需要过滤具有一些条件列的查询，如下所示：

 SELECT
     `c`.`fullname` AS `fullname`,
     IFNULL(`c`.`new_ic`,`c`.`old_ic`) AS `Ic`,
     `bla`.`loan_no` AS `Loan_No`,
     `bla`.`total_loan_amt` AS `Total_Loan_Amt`,
     `bla`.`monthly_installment` AS `Month_Inst_Amt`,
     `bla`.`disb_date` AS `disb_date` FROM (`customers` `c`
 JOIN `basic_loan_application` `bla`
    ON ((`bla`.`customer_uid` = `c`.`customer_uid`))) 
 WHERE Ic LIKE '%800%' ORDER BY `bla`.`Basic_Loan_Application_Id` DESC LIMIT 0, 10

但我无法使用Ic字段并返回错误，如下所述：

 Unknown column 'Ic' in 'where clause'

如果可能，我想尽量避免嵌套选择。

这个问题还有另一个解决方案吗？

Answer 1

重复一下定义：

WHERE IFNULL(`c`.`new_ic`,`c`.`old_ic`) LIKE '%800%'
ORDER BY `bla`.`Basic_Loan_Application_Id` DESC
LIMIT 0, 10

或者，如果您愿意，可以使用MySQL扩展，允许您使用having子句进行过滤（在本例中）：

HAVING Ic LIKE '%800%'
ORDER BY `bla`.`Basic_Loan_Application_Id` DESC
LIMIT 0, 10

Mysql选择别名列

1 个答案: