oracle存储过程实现分页

--book表

CREATE TABLE book(

book_id VARCHAR2(20),

book_name VARCHAR2(100),

book_publish VARCHAR2(100)

);

--in表示输入参数，默认为in

--out 表示输出参数

CREATE OR REPLACE PROCEDURE sp_pro7(spBookId IN VARCHAR2, spBookName in VARCHAR2, spBookPub VARCHAR2)

 IS

 BEGIN

   INSERT INTO book VALUES(spBookId, spBookName,spBookPub);

 END;

--返回单个值

CREATE OR REPLACE PROCEDURE sp_pro8(spBookId IN VARCHAR2, spBookName OUT VARCHAR2)

 IS

 BEGIN

   SELECT t.book_name INTO spBookName FROM book t WHERE t.book_id = spBookId;

 END;

--返回结果集

--1 建立一个游标

CREATE OR REPLACE PACKAGE testPackage AS

 TYPE test_cursor IS REF CURSOR;

END testPackage;

--2 创建过程

CREATE OR REPLACE PROCEDURE sp_pro9(spBookId VARCHAR2, sp_cursor OUT testPackage.test_cursor) IS

 BEGIN

   OPEN sp_cursor FOR SELECT t.book_id,t.book_name,t.book_publish FROM book t;

 END;

--分页

SELECT *

  FROM (SELECT ROWNUM RN, T.* FROM BOOK T WHERE ROWNUM < 5)

 WHERE RN > 2;

CREATE OR REPLACE PROCEDURE fenye(

       tablename VARCHAR2,

       pageSize NUMBER,  -- 一页显示的记录数

       pageNow NUMBER, --当前页数

       myRows OUT NUMBER, --总记录数

       myPageCount OUT NUMBER,

       sp_cursor OUT testPackage.test_cursor) IS

v_sql VARCHAR2(1000);

v_begin NUMBER:=(pageNow - 1) * pageSize + 1;

v_end NUMBER:=(pageNow) * pageSize;

BEGIN

    v_sql:='SELECT * FROM (SELECT ROWNUM RN, T.* FROM '|| tablename || ' T WHERE ROWNUM < '|| v_end || ') WHERE RN > '|| v_begin;

    OPEN sp_cursor FOR v_sql;

    --计算myrows mypagecount

    v_sql := 'SELECT COUNT(*) FROM '|| tablename;

    --快速执行sql,并将结果赋值给myrows

    EXECUTE IMMEDIATE v_sql INTO myrows;

    IF MOD(myrows, pageSize) = 0 THEN

      myPageCount:=myrows / pageSize;

    ELSE

      myPageCount:=myrows / pageSize + 1;

    END IF;

    --关闭游标

    CLOSE sp_cursor;

END;

package com.leeket;

import java.sql.CallableStatement;

import java.sql.Connection;

import java.sql.DriverManager;

import java.sql.ResultSet;

public class TestProcedure4 {

 public static void main(String[] args) {

  CallableStatement call = null;

  Connection conn = null;

  ResultSet rs = null;

  try {

   Class.forName("oracle.jdbc.driver.OracleDriver");

   conn = DriverManager

     .getConnection("jdbc:oracle:thin:pas_perf/[email protected]:1521:orcl");

   call = conn.prepareCall("{call fenye(?,?,?,?,?,?)}");

   call.setString(1, "BOOK");

   call.setInt(2, 10);

   call.setInt(3, 1);

   call.registerOutParameter(4, oracle.jdbc.OracleTypes.INTEGER);

   call.registerOutParameter(5, oracle.jdbc.OracleTypes.INTEGER);

   call.registerOutParameter(6, oracle.jdbc.OracleTypes.CURSOR);

   call.execute();

   //取出返回值 要注意问好的顺序

   int num = call.getInt(4);

   int myPageCount = call.getInt(5);

   rs = (ResultSet)call.getObject(6);

   if (rs != null)

    while (rs.next()) {

     System.out.println(num + "\t" + myPageCount + "\t" + rs.getString(2) + "\t" + rs.getString(3) + "\t" + rs.getString(4));

    }

  } catch (Exception e) {

   e.printStackTrace();

  } finally {

   try {

    if (rs != null)

     rs.close();

    if (call != null)

     call.close();

    if (conn != null)

     conn.close();

   } catch (Exception e) {

    e.printStackTrace();

   }

  }

 }

}