ORA -00909 //sql 语句被忽略...创建的过程有编译错误

Question

create or replace procedure Pupdate(   
peno in emp.empno%type,  
psal in emp.sal%type,  
pcomm in emp.comm%type)  
IS   
BEGIN  
UPDATE emp SET sal=sal+psal, comm=NVL(comm)+pcomm WHERE empno=peno;  
END Pupdate;  
/

存储过程从用户那里获取 sal 和 comm，并将其更新到 emp table。

Answer 1

NVL() 有两个参数，但我更喜欢 ANSI 标准 COALESCE():

UPDATE emp
    SET sal=sal + psal,
        comm = COALESCE(comm, 0) + COALESCE(pcomm, 0)
WHERE empno = peno;  

Answer 2

 create or replace procedure Pupdate(   
peno in emp.empno%type,  
psal in emp.sal%type,  
pcomm in emp.comm%type)  
IS   
BEGIN  
UPDATE emp SET sal=sal+psal, comm=NVL(comm,0)+nvl(pcomm,0) WHERE empno=peno;  
END Pupdate;  
/

试试这个。 NVL 将类似于 NVL(column_name,value_if_null).