Oracle分页存储过程及PLSQL中的调用脚本

撰写过程:网上搜集测试了好多的Oracle分页存储过程代码,经整理后终于通过测试,特分享给大家

测试步骤:1、运行创建包命令;2、运行创建存储过程命令;3、运行调用分页存储过程语句

测试环境:windows2003+Oracle11g+PLSQL Developer

--1、创建包命令

create or replace package mypackage as
  type cursor_page is ref cursor;
  Procedure myprocdure(
             p_TableName varchar2,              --表名
             p_Fields varchar2,                 --查询列
             p_Orderby varchar2,                --排序
             p_Where varchar2,                  --查询条件
             p_pagesize Number,                 --每页大小
             p_pageIndex Number,                --当前页
             p_rowcount out Number,             --总条数,输出参数
             p_pagecount out number,            --总页数
             p_cursor out cursor_page);         --结果集
end mypackage;

--2、创建存储过程命令

CREATE OR REPLACE Package Body mypackage
Is
       --存储过程
      Procedure myprocdure(
             p_TableName varchar2,              --表名
             p_Fields varchar2,                 --查询列
             p_Orderby varchar2,                --排序
             p_Where varchar2,                  --查询条件
             p_pagesize Number,                 --每页大小
             p_pageIndex Number,                --当前页
             p_rowcount out Number,             --总条数,输出参数
             p_pagecount out number,            --总页数
             p_cursor out cursor_page           --结果集
      )
      is
            v_count_sql varchar2(2000);

v_select_sql varchar2(2000);

s_TableName nvarchar2(255);--分页表名

begin
            --查询总条数
            v_count_sql:='select count(*) from '||p_TableName;
            --连接查询条件(''也属于is null)
            if p_Where is not null  then
               v_count_sql:=v_count_sql||' where '||p_Where;
            end if;
            --执行查询,查询总条数
            execute immediate v_count_sql into p_rowcount;

            --dbms_output.put_line('查询总条数SQL=>'||v_count_sql);
            --dbms_output.put_line('查询总条数Count='||p_rowcount);

             --得到总页数
             if mod(p_rowcount,p_pagesize)=0 then
                p_pagecount:=p_rowcount/p_pagesize;
             else
                p_pagecount:=p_rowcount/p_pagesize+1;
             end if;

            --如果查询记录大于0则查询结果集
            if p_rowcount>0 and p_pageIndex>=1 and p_pageIndex<=p_pagecount then

               --查询所有(只有一页)
               if p_rowcount<=p_pagesize then
                  v_select_sql:='select '||p_Fields||' from '||p_TableName;
                  if p_Where is not null then
                     v_select_sql:=v_select_sql||' where '||p_Where;
                  end if;
                  if p_Orderby is not null then
                      v_select_sql:=v_select_sql||' order by '||p_Orderby;
                  end if;
               elsif p_pageIndex=1 then  --查询第一页
                  v_select_sql:='select '||p_Fields||' from '||p_TableName;
                  if p_Where is not null then
                     v_select_sql:=v_select_sql||' where '||p_Where||' and rownum<='||p_pagesize;
                  else
                     v_select_sql:=v_select_sql||' where rownum<='||p_pagesize;
                  end if;
                  if p_Orderby is not null then
                      v_select_sql:=v_select_sql||' order by '||p_Orderby;
                  end if;
               else      --查询指定页

if instr(p_TableName,')')>0 then                  
                  s_TableName:=replace(substr(p_TableName,instr(p_TableName,')')+1),' ','');
                  v_select_sql:='select * from (select '||s_TableName||'.' || p_Fields ||',rownum row_num from '|| p_TableName;
                  else
                  v_select_sql:='select * from (select '|| p_TableName || '.' || p_Fields ||',rownum row_num from '|| p_TableName;
                  end if;

if p_Where is not null then
                     v_select_sql:=v_select_sql||' where '||p_Where;
                  end if;
                  if p_Orderby is not null then
                      v_select_sql:=v_select_sql||' order by '||p_Orderby;
                  end if;
                  v_select_sql:=v_select_sql||') where row_num>'||((p_pageIndex-1)*p_pagesize)||' and row_num<='||(p_pageIndex*p_pagesize);
               end if;
               --执行查询
               --dbms_output.put_line('查询语句=>'||v_select_sql);
               open p_cursor for v_select_sql;
            else
               --dbms_output.put_line('查询语句=>'||'select * from '||p_TableName||' where 1!=1');
               open p_cursor for 'select * from '||p_TableName||' where 1!=1';
            end if;

      end myprocdure;
end mypackage;

--3、调用分页存储过程语句
declare
       p_TableName varchar2(2000);
       p_Fields varchar2(2000);
       p_Orderby varchar2(200);
       p_Where varchar2(200);
       p_pagesize Number;
       p_pageIndex Number;
       p_rowcount Number;
       p_pagecount number;
       p_cursor mypackage.cursor_page ;
begin   
        p_TableName:='GOODSDOC';
        p_Fields:='*';
        p_Orderby:='GOODSNAME';
        p_Where:='1=1';
        p_pagesize:=100;
        p_pageIndex:=1;
        mypackage.myprocdure(p_TableName,p_Fields,p_Orderby,p_Where,p_pagesize,p_pageIndex,p_rowcount,p_pagecount,p_cursor);      
        DBMS_OUTPUT.PUT_LINE('记录总数'||p_rowcount||'页面总数'||p_pagecount);
END;