PL SQL过程与选择

Question

I want to execute procedure that returns me the First name, last name and the title of the author based on the state he/she is from. But the code above returns me PLS-00103 error "end-of-file".

CREATE OR REPLACE PROCEDURE proc1 (stattt OUT SYS_REFCURSOR) AS 
BEGIN
SELECT a.au_fname, a.au_lname, t.title
FROM authors a, titleauthor ta, titles t 
WHERE ta.au_id = a.au_id
AND t.title_id = ta.title_id
AND state =  stattt
/

I also tried to use

into proc1

but it is still doesnt work. This is from the sample database Pubs from MS SQL that I converted to SQL Oracle.

Answer 1

A few objections:

• you already know that END is missing
• apart from that, INTO is required for a SELECT statement in PL/SQL (ie you have to put the result somewhere ). Usually, you declare local variables for that purpose. You chose to return ref cursor - OK
• stattt is ref cursor, set as an out parameter for that procedure; I don't think that you can use it as a parameter in that WHERE clause.

Here's an example based on Scott's schema (as I don't have your tables) which shows how to do that. I'm returning all employees that work in some department (10, in this example):

SQL> CREATE OR REPLACE PROCEDURE p_test (par_deptno   IN     NUMBER,
  2                                      par_rc          OUT SYS_REFCURSOR)
  3  IS
  4  BEGIN
  5     OPEN par_rc FOR
  6        SELECT empno, ename, sal
  7          FROM emp
  8         WHERE deptno = par_deptno;
  9  END;
 10  /

Procedure created.

SQL> var l_rc refcursor
SQL>
SQL> exec p_test(10, :l_rc);

PL/SQL procedure successfully completed.

SQL> print l_rc

     EMPNO ENAME             SAL
---------- ---------- ----------
      7782 CLARK            2450
      7839 KING            10000
      7934 MILLER           1300

SQL>

Answer 2

Follow CREATE PROCEDURE syntax and the convention that every beginning has an end , and close BEGIN with END:

CREATE OR REPLACE PROCEDURE proc1 (stattt OUT SYS_REFCURSOR) AS 
BEGIN
SELECT a.au_fname, a.au_lname, t.title
FROM authors a, titleauthor ta, titles t 
WHERE ta.au_id = a.au_id
AND t.title_id = ta.title_id
AND state =  stattt
END;
/ 

 Header AS [declaration statements ...] BEGIN ... [EXCEPTION ...] END;