Oracle存储过程分页
转载
from: http://cid-4e5d038451e31a25.spaces.live.com/blog/cns!4E5D038451E31A25!140.entry
create or replace procedure P_QuerySplit(
sqlscript varchar2, --表名/SQL语句
pageSize integer, --每页记录数
pageIndex integer, --当前页
totalCount out number, --总记录数
totalPage out number, --总页数
v_cur out sys_refcursor --返回游标
) is
/**
* by chenjianxin 2008-5-3
*
*/
v_PageSize number;
v_PageIndex number;
v_SQL_Count varchar2(4000);
v_SQL varchar2(4000);
v_StartIndex number;
v_EndIndex number;
begin
v_PageSize:=pageSize;
if v_PageSize=0 then
v_PageSize:=1;
end if;
--统计记录数量
v_SQL_Count := 'select count(*) from ('|| sqlscript ||') a ';
execute immediate v_SQL_Count into totalCount;
--计算总页数
totalPage:=CEIL(totalCount/v_PageSize);
--验证页号 如果页号大余了最大页数，返回最后一页
v_PageIndex:=pageIndex;
if v_PageIndex>totalPage then
v_PageIndex:=totalPage;
end if;
--计算开始的Index和结束的Index
v_StartIndex:=(v_PageIndex-1)*v_PageSize+1;
v_EndIndex:=v_PageIndex*v_PageSize;
v_SQL:='SELECT /*+ FIRST_ROWS */* from (';
v_SQL:=v_SQL||' SELECT A.*, ROWNUM RN ';
v_SQL:=v_SQL||' from ('||sqlscript||') A ';
v_SQL:=v_SQL||' WHERE ROWNUM <= '||v_EndIndex;
v_SQL:=v_SQL||')WHERE RN >= '||v_StartIndex;
open v_cur for v_SQL;
end P_QuerySplit;
java代码：
public List listSplit(StringBuffer sbSQL,SplitPageInfo splitPageInfo)throws Exception{
try {
java.sql.CallableStatement proc = this.con.prepareCall(
&n
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函数类别:
单行:返回单个结果:substr,length
多行:返回多个结果,any,all
单行的分类:
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