通子查詢的功能參數

Question

如何在功能子查詢作爲函數參數

select get_feeTypeamount(SELECT ftp.type_plan_id 
       FROM tbl_fee_type_plan ftp 
     WHERE ftp.type_plan_id=17) as total_amount 

Answer 1

你並不需要一個子查詢。只需將該函數應用於SELECT中的ftp.type_plan_id列即可。

像這樣的東西應該爲你工作：

SELECT get_feeTypeamount(ftp.type_plan_id) as total_amount 
FROM tbl_fee_type_plan ftp 
WHERE ftp.type_plan_id=17