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分页存储过程(1)

原创 Linux操作系统 作者:yekang_cui 时间:2010-05-25 18:10:11 0 删除 编辑

从网上找到的分页存储过程。(没有返回查询的总条数)

--创建存储过 程
CREATE PROCEDURE cndoup_GetPageOfRecords
  @pageSize int = 20,                                                --分页大小
  @currentPage int ,                                                 --第几页
  @columns varchar (1000) = '*' ,                            --需要得到的字段
  @tableName varchar (100),                                     --需要查询的表    
  @condition varchar (1000) = '' ,                         --查询条件, 不用加where关键字
  @ascColumn varchar (100) = '' ,                            --排序的字段名 (即 order by column asc/desc)
  @bitOrderType bit = 0,                                         --排序的类型 (0为升序,1为降序)
  @pkColumn varchar (50) = ''                                  --主键名称

AS
BEGIN                                                                                     -- 存储过程开始
  DECLARE @strTemp varchar (300)
  DECLARE @strSql varchar (5000)                            --该存储过程最后执行的语句
  DECLARE @strOrderType varchar (1000)                --排序类型语句 (order by column asc或者order by column desc)

  BEGIN
    IF @bitOrderType = 1                --降序
      BEGIN
        SET @strOrderType = ' ORDER BY ' +@ascColumn+' DESC'
        SET @strTemp = '<(SELECT min'
      END
    ELSE                   --升序
      BEGIN
        SET @strOrderType = ' ORDER BY ' +@ascColumn+' ASC'
        SET @strTemp = '>(SELECT max'
      END

    IF @currentPage = 1            --第一页
      BEGIN
        IF @condition != ''
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+
            ' WHERE ' +@condition+@strOrderType
        ELSE
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+@strOrderType
      END

    ELSE                   -- 其他页
      BEGIN
        IF @condition !=''
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+
          ' WHERE ' +@condition+' AND ' +@pkColumn+@strTemp+'(' +@pkColumn+')' +' FROM (SELECT TOP ' +STR ((@currentPage-1)*@pageSize)+
          ' ' +@pkColumn+' FROM ' +@tableName'where' +@condition+@strOrderType+') AS TabTemp)' +@strOrderType
        ELSE
          SET @strSql = 'SELECT TOP ' +STR (@pageSize)+' ' +@columns+' FROM ' +@tableName+
          ' WHERE ' +@pkColumn+@strTemp+'(' +@pkColumn+')' +' FROM (SELECT TOP ' +STR ((@currentPage-1)*@pageSize)+' ' +@pkColumn+
          ' FROM ' +@tableName+@strOrderType+') AS TabTemp)' +@strOrderType
      END

  END
  EXEC (@strSql)
END  

最后执行的分页查询语句可能为:


select top 3 *
from OrderTable
where MemID=1 and OID >(select MAX(
OID ) from (select top 3 OID from  OrderTable where MemID =1 order by OID ) as TabTemp )
order by
OID

来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/23715535/viewspace-663715/ ,如需转载,请注明出处,否则将追究法律责任。

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