SQL case...when...then...else..end ；1.3BI报表大数据开发题

Posted 2022-03-11 g阿亮

需求： 

--要求;查询出122号员工的J8r_1，若其值为·I_PR8*，则打印·GRADS:A":
---As_nr'.打印"GRADE B·.
--"Ae Accourr"。打亭·GRADE c:--西则打印·GRAEE D·

---

 

1.declare

        vjob_id varchar2(10);

        v_temp varchar2 (10);

begin
        select job_id into v_job_id from employees where employee_id - 122;
         v_temp :=                 ---赋值
                case v_job_id when 'IT_PROG' then 'A'
                                when 'AC MGT" then "B'
                                when 'AC_ACCOUNT' then 'c'else 'D"
        end;
        dbms_output.put_line(v_job_id[l',1lv_temp) ;
end;

>?>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

--部分的分号会变成中文注意使用

并且 end；表示结束

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