oracle分页

--创建包  获取数据结果集
CREATE OR REPLACE PACKAGE getDatas_PACKAGE AS
TYPE getDatas_cursor IS REF CURSOR;
END getDatas_PACKAGE;

--创建分页存储过程
CREATE OR REPLACE PROCEDURE FENYE(TABLENAME    IN VARCHAR2,
PAGSIZE      IN NUMBER,
PAGENOW      IN NUMBER,
MYROWS       OUT NUMBER,
PAGECOUNT    OUT NUMBER,
FENYE_CURSOR OUT getDatas_PACKAGE.getDatas_cursor) IS

V_SQL   VARCHAR2(1000);
V_BEGIN NUMBER := (PAGENOW - 1) * PAGSIZE + 1;
V_END   NUMBER := PAGENOW * PAGSIZE;

BEGIN
V_SQL := 'SELECT *
FROM (SELECT T1.*, ROWNUM RN
FROM (SELECT * FROM ' || TABLENAME ||
' order by sal asc) T1
WHERE ROWNUM <= ' || V_END || ')
WHERE RN >= ' || V_BEGIN;

OPEN FENYE_CURSOR FOR V_SQL;

V_SQL := 'SELECT COUNT(*) FROM ' || TABLENAME;

-- execute immediate v_sql into MYROWS;
EXECUTE IMMEDIATE V_SQL
INTO MYROWS;

IF MOD(MYROWS, PAGSIZE) = 0 THEN
PAGECOUNT := MYROWS / PAGSIZE;

ELSE
PAGECOUNT := MYROWS / PAGSIZE + 1;
END IF;
-- END LOOP;
--CLOSE FENYE_CURSOR;

END;