oracle行转列（动态行转不定列)

2019独角兽企业重金招聘Python工程师标准>>>

---------------------------------------------------------------行转列的存储过程
CREATE OR REPLACE PROCEDURE P_TEST IS
  V_SQL VARCHAR2(2000);
  CURSOR CURSOR_1 IS SELECT DISTINCT T.XCLCK FROM TEST T ORDER BY XCLCK; 
    
    BEGIN
      V_SQL := 'SELECT WL,XYSL,XYCK';

      FOR V_XCLCK IN CURSOR_1
      LOOP
        V_SQL := V_SQL || ',' || 'SUM(DECODE(XCLCK,''' || V_XCLCK.XCLCK ||
                 ''',XCLCKSL,0)) AS ' || V_XCLCK.XCLCK;
      END LOOP;
      
      V_SQL := V_SQL || ' FROM TEST GROUP BY WL,XYSL,XYCK ORDER BY WL,XYSL,XYCK';
      --DBMS_OUTPUT.PUT_LINE(V_SQL);
      V_SQL := 'CREATE OR REPLACE VIEW RESULT  AS '||  V_SQL;
      --DBMS_OUTPUT.PUT_LINE(V_SQL);
      EXECUTE IMMEDIATE V_SQL;
    END;
----------------------------------------------------------------结果
----------------执行存储过程，生成视图
BEGIN
  P_TEST;               
END;

转载于:https://my.oschina.net/youfen/blog/1863241