相关疑难解决方法(0)

我有一个新的存储过程,但在调用时出错,

CREATE OR REPLACE PROCEDURE SCOTT.getempsal(
        p_emp_id IN NUMBER,
        p_emp_month IN CHAR,
        p_emp_sal OUT INTEGER)

AS
BEGIN
    SELECT EMP_SAL
      INTO p_emp_sal
      FROM EMPLOYEE_SAL
    WHERE  EMP_ID = p_emp_id
    AND    EMP_MONTH = p_emp_month;

END getempsal;

并试图称之为:

getempsal(1,'JAN',OUT) --Invalid sql statement.