oracle - 存储过程返回的PL/SQL打印出ref游标

如何从存储过程返回的ref游标中获取(OUT变量)，然后将结果行打印到SQL * PLUS中的STDOUT？

ORACLE存储过程:

PROCEDURE GetGrantListByPI(p_firstname IN VARCHAR2, p_lastname IN VARCHAR2,
p_orderby IN VARCHAR2, p_cursor OUT grantcur);

PL / SQL:

SET SERVEROUTPUT ON;

DECLARE
  TYPE r_cursor IS REF CURSOR;
  refCursor r_cursor;

  CURSOR grantCursor IS
    SELECT last_name, first_name
    FROM ten_year_pis
    WHERE year_added = 2010;

  last_name VARCHAR2(100);
  first_name VARCHAR2(100);

BEGIN
  OPEN grantCursor;
  FETCH grantCursor INTO last_name, first_name;

  WHILE grantCursor%FOUND LOOP
    PMAWEB_PKG.GetGrantListByPI(last_name, first_name, 'last_name', refCursor);

    --HOW DO I LOOP THROUGH THE RETURNED REF CURSOR (refCursor)
    --AND PRINT THE RESULTING ROWS TO STDOUT?

    FETCH grantCursor into last_name, first_name;
  END LOOP;
  CLOSE grantCursor;
END;
/

最佳答案

注意:此代码未经测试

为您的refCursor返回类型定义一条记录，将其称为rec。例如:

TYPE MyRec IS RECORD (col1 VARCHAR2(10), col2 VARCHAR2(20), ...);  --define the record
rec MyRec;        -- instantiate the record

一旦从过程中返回了refcursor，就可以在下面的注释中添加以下代码:

LOOP
  FETCH refCursor INTO rec;
  EXIT WHEN refCursor%NOTFOUND;
  dbms_output.put_line(rec.col1||','||rec.col2||','||...);
END LOOP;

Refcursor

oracle - 存储过程返回的PL/SQL打印出ref游标