Java程序
package com.test; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Types; import com.jdbc.BaseJdbcDAO; import oracle.jdbc.OracleTypes; public class Test { /** * @param args */ public static void main(String[] args) { Connection conn = BaseJdbcDAO.getConnection2("com"); String sqlSel = "SELECT * FROM POSITION"; String sqlCount = "SELECT COUNT(*) FROM POSITION"; String sql = "{ call SP_PAGE(?,?,?,?,?,?,?) }"; ResultSet rs = null; try { CallableStatement call = conn.prepareCall(sql); call.setInt(1, 20); call.setInt(2, 100); call.setString(3, sqlSel); call.setString(4, sqlCount); call.registerOutParameter(5, Types.INTEGER); call.registerOutParameter(6, Types.INTEGER); call.registerOutParameter(7, OracleTypes.CURSOR); call.execute(); // 取出结果集 int pageCount = call.getInt(5);//总页数 int total = call.getInt(6);//总记录数 rs = (ResultSet) call.getObject(7);//信息列表集 System.out.println("页总数:" + pageCount); System.out.println("记录总数:" + total); int i = 1; while (rs.next()) { System.out.println(">>" + i + "号码:" + rs.getString(2) + "名称:" + rs.getString(3) + "序号:" + rs.getInt(1)); i++; } } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }/* 何问起 hovertree.com */
--创建游标包
create or replace PACKAGE "PKG_QUERY" AS type refCursorType is REF CURSOR; --游标类型定义,用于返回数据集 END;/* 何问起 hovertree.com */
--存储过程
create or replace procedure sp_Page(p_PageSize int, --每页记录数 p_PageNo int, --当前页码,从 1 开始 p_SqlSelect varchar2, --查询语句,含排序部分 p_SqlCount varchar2, --获取记录总数的查询语句 p_pageCount out int,--总共多少页 p_OutRecordCount out int,--返回总记录数 p_OutCursor out PKG_QUERY.refCursorType) as v_sql varchar2(3000); v_count int; v_heiRownum int; v_lowRownum int; begin ----取记录总数 execute immediate p_SqlCount into v_count; p_OutRecordCount := v_count; --计算mypageCount-- if mod(v_count,p_PageSize)=0 then p_pageCount:=v_count/p_PageSize; else p_pageCount:=v_count/p_PageSize+1; end if; ----执行分页查询 v_heiRownum := p_PageNo * p_PageSize; v_lowRownum := v_heiRownum - p_PageSize + 1; v_sql := ‘SELECT B.* FROM (SELECT A.*, rownum rn FROM (‘|| p_SqlSelect ||‘) A WHERE rownum <= ‘|| to_char(v_heiRownum) || ‘ ) B WHERE rn >= ‘ || to_char(v_lowRownum) ; --注意对rownum别名的使用,第一次直接用rownum,第二次一定要用别名rn OPEN p_OutCursor FOR v_sql; end sp_Page;/* 何问起 hovertree.com */
推荐:http://www.cnblogs.com/roucheng/p/3504465.html
时间: 2024-11-18 05:14:18