分页

分页-sql语句

java 2007-09-26 10:42:21 阅读17 评论0   字号：大中小 订阅

Mysql存储过程：DELIMITER   $$;  
   
  DROP   PROCEDURE   IF   EXISTS   `mytest`.`MyPage`$$  
   
  CREATE   DEFINER=`root`@`localhost`   PROCEDURE   `MyPage`(  
  tableName   varchar(100),     /*表名*/  
  fieldsName   VARCHAR(100),   /*显示字段*/  
  pageIndex   int,                       /*页索引*/  
  pageSize   int,                         /*每页大小*/  
  sortName   VARCHAR(500),       /*排序字段*/  
  strWhere   varchar(500)         /*条件*/  
  )  
  BEGIN  
  DECLARE   fieldlist   VARCHAR(200);  
  if   fieldsName=''||fieldsName=null   THEN  
        set   fieldlist='*';  
  else  
        set   fieldlist=fieldsName;  
  end   if;  
  if   strWhere=''||strWhere=null   then  
            if   sortName=''||sortName=null   then  
                    set   @strSQL=concat('select   ',fieldlist,'   from   '   ,   tableName,'   limit   ',(pageindex-1)*pageSize,',',pageSize);  
            else  
    set   @strSQL=concat('select   ',fieldlist,'   from   '   ,   tableName,'   order   by   ',sortName,'   limit   ',(pageindex-1)*pageSize,',',pageSize);  
            end   if;  
  else  
          if   sortName=''||sortName=null   then  
  set   @strSQL=concat('select   ',fieldlist,'   from   '   ,   tableName,'   where   ',strWhere,'   limit   ',(pageindex-1)*pageSize,',',pageSize);  
          else  
  set   @strSQL=concat('select   ',fieldlist,'   from   '   ,   tableName,'   where   ',strWhere,'   order   by   ',sortName,'   limit   ',(pageindex-1)*pageSize,',',pageSize);  
          end   if;  
  end   if;  
  PREPARE   stmt1   FROM   @strSQL;  
  EXECUTE   stmt1;  
  DEALLOCATE   PREPARE   stmt1;  
  END$$  
   
  DELIMITER   ;$$

 

 

Mysql：  SELECT [FILED] FROM [TABLE] WHERE [CONDITION] LIMIT [START POS],[PAGESIZE];

 

 

Oracle:

1.with partdata as (select rownum rowno,t.* from table1 t where t.id>200407160000)

select * from partdata where rowno between 10 and 20

 

 

2.select * from (

select id,msisdn,filename, rownum as num

from(select * from tb_quit_msisdn order by id desc)

where rownum<=22

)

where num>=20

3.

SELECT * 
        FROM (SELECT ROWNUM r,t1.* From 表名称 t1 where rownum < M + N) t2
        where t2.r >= M
        例如从表Sys_option（主键为sys_id)中从10条记录还是检索20条记录，语句如下：
        SELECT * 
        FROM (SELECT ROWNUM R,t1.* From Sys_option where rownum < 30 ) t2
         Where t2.R >= 10

 

 

sqlserver:

1. SELECT   TOP   页大小   *  
FROM   TestTable  
WHERE   (ID   NOT   IN  
(SELECT   TOP   页大小*页数   id  
FROM   表  
ORDER   BY   id))  
ORDER   BY   ID  

2. SELECT   TOP   页大小   *  
FROM   TestTable  
WHERE   (ID   >  
(SELECT   MAX(id)  
FROM   (SELECT   TOP   页大小*页数   id  
FROM   表  
ORDER   BY   id)   AS   T))  
ORDER   BY   ID  

 

3.

从数据库表中的第M条记录开始取N条记录，利用Top关键字：注意如果Select语句中既有top，又有order by，则是从排序好的结果集中选择：
        SELECT *
        FROM  ( SELECT Top N *  
                         FROM  (SELECT Top (M + N - 1) * FROM 表名称 Order by 主键 desc) t1 ) t2
        Order by 主键 asc

        例如从表Sys_option（主键为sys_id)中从10条记录还是检索20条记录，语句如下：
        SELECT * 
        FROM ( SELECT TOP 20 *
                        FROM (SELECT TOP 29 * FROM Sys_option order by sys_id desc) t1) t2
        Order by sys_id asc

4.

CREATE   PROCEDURE PrSqlPager
(
        @TableName  nvarchar(100),    -- 表名
        @StrWhere nvarchar(500),    -- Where 子句
        @IdentityKey  nvarchar(100),   -- 标识列
        @PageNum   int,   -- 页号
        @PageSize   int,   -- 页大小
        @ErrInfo varchar(100)  OUTPUT,  -- 出错信息
        @TotalRecordCount int OUTPUT,   -- 总记录数
        @PageCount int OUTPUT   -- 总页数
)
AS
DECLARE @sql NVARCHAR(1000)
DECLARE @paramDefine NVARCHAR(1000)
/******************** 数据表中总记录数 ***********************/
SET @sql = 'SELECT @TotalRecordCount = COUNT(*) FROM ' + @TableName + ' WHERE 1=1'
IF @StrWhere IS NOT NULL AND @StrWhere <> ''
 SET @sql = @sql + ' AND ' + @StrWhere
SET @paramDefine = '@TotalRecordCount INT OUTPUT'
EXEC SP_EXECUTESQL @sql,@paramDefine,@TotalRecordCount OUTPUT
/*************************************************************/
/*********************** 验证页大小 **************************/
IF @PageSize < 0
 SET @PageSize = 0
IF @PageSize > @TotalRecordCount
 SET @PageNum = @TotalRecordCount
/*************************************************************/
/******************** 根据页大小计算总页数 ***********************/
IF @TotalRecordCount % @PageSize = 0
 SET @PageCount = @TotalRecordCount / @PageSize
ELSE
 SET @PageCount = @TotalRecordCount / @PageSize + 1
/*************************************************************/
/*********************** 验证页号 ***************************/
IF @PageNum < 1
 SET @PageNum = 1
IF @PageNum > @PageCount
 SET @PageNum = @PageCount
/*************************************************************/
/******************** 实现分页查询 ***********************/
DECLARE @foreRecordCount INT
SET @foreRecordCount = (@PageNum - 1) * @PageSize + 1
SET @sql = 'SELECT TOP ' + CAST(@PageSize as varchar)
 + ' * FROM ' + @TableName
 + ' WHERE ' + @IdentityKey + ' >= '
 + ' ( SELECT MAX( ' + @IdentityKey + ' ) FROM ( SELECT TOP '
 + CAST(@foreRecordCount as varchar)
 + @IdentityKey + ' FROM ' + @TableName
 + ' ORDER BY ' + @IdentityKey + ' ) AS TempTable ) '
 + ' ORDER BY ' + @IdentityKey
IF @StrWhere IS NOT NULL AND @StrWhere <> ''
 SET @sql = @sql + ' AND ' + @StrWhere
SET @paramDefine = N'@PageSize INT,@foreRecordCount INT'
EXEC SP_EXECUTESQL @sql,@paramDefine,@PageSize,@foreRecordCount
/*************************************************************/
GO