我在執行plsql查詢時遇到錯誤ORA-01422

Question

我在執行下面的plsql查詢時遇到錯誤ORA-01422

Declare
    X NUMBER ;
    Bonus number; 
    begin 
    select acy_opening_bal into x from sttm_cust_account where branch_code ='000';
    bonus:= x+2000;
     dbms_output.put_line('bonus is: '|| bonus);
     end; 
    /

Answer 1

嘗試這個：

Declare
    X NUMBER ;
    Bonus number; 
    begin 
    select distinct first_value(acy_opening_bal) over (partition by branch_code  ORDER BY acy_opening_bal ASC) into x from sttm_cust_account where branch_code ='000';
    bonus:= x+2000;
     dbms_output.put_line('bonus is: '|| bonus);
     end; 
    /