一个比较实用的大数据量分页存储过程
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create proc sp_PublicTurnPageWebSite(
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@TBName nvarchar(100)='', --表名,如 pinyin
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@PageSize int=10, --每页的记录数,默认为 10
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@CurPage int=1, --表示当前页 1
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@KeyField nvarchar(100)='ID', --关键字段名,默认为 ID,该字段要求是表中的索引 或 无重复和不为空的字段
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@KeyAscDesc nvarchar(4)='ASC', --关键字的升、降序,默认为升序 ASC , 降序为 DESC
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@Fields nvarchar(500)='*', --所选择的列名,默认为全选
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@Condition nvarchar(200)='', --where 条件,默认为空
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@Order nvarchar(200)='' --排序条件,默认为空
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) with encryption as
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if @TBName = ''
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begin
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raiserror('请指定表名!',11,1)
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return
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end
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if @PageSize <=0 or @CurPage <0
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begin
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raiserror('当前页数和每页的记录数都必须大于零!',11,1)
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return
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end
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if @KeyAscDesc = 'DESC'
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set @KeyAscDesc = '<'
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else
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set @KeyAscDesc = '>'
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if @Condition <> ''
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set @Condition = ' where ' + @Condition
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declare @SQL nvarchar(2000)
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set @SQL = ''
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if @CurPage = 1
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set @SQL = @SQL + 'Select Top ' + cast(@PageSize as nvarchar(20)) + ' ' + @Fields + ' FROM ' + @TBName + @Condition + ' ' + @Order
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else
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begin
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declare @iTopNum int
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set @iTopNum = @PageSize * (@CurPage - 1)
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set @SQL = @SQL + 'declare @sLastValue nvarchar(100)' + char(13)
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set @SQL = @SQL + 'Select Top ' + cast(@iTopNum as nvarchar(20)) + ' @sLastValue=' + @KeyField + ' FROM ' + @TBName + @Condition + ' ' + @Order + char(13)
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declare @Condition2 nvarchar(200)
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if @Condition = ''
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set @Condition2 = ' where ' + @KeyField + @KeyAscDesc + '@sLastValue '
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else
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set @Condition2 = ' and ' + @KeyField + @KeyAscDesc + '@sLastValue '
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set @SQL = @SQL + 'Select Top ' + cast(@PageSize as nvarchar(20)) + ' ' + @Fields + ' FROM ' + @TBName + @Condition + @Condition2 + @Order
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end
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EXECUTE sp_executesql @SQL
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