实现千万级数据的分页显示
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- CREATE PROCEDURE GetRecordFromPage
- @tblName varchar(255), -- 表名
- @fldName varchar(255), -- 字段名
- @PageSize int = 10, -- 页尺寸
- @PageIndex int = 1, -- 页码
- @IsCount bit = 0, -- 返回记录总数, 非 0 值则返回
- @OrderType bit = 0, -- 设置排序类型, 非 0 值则降序
- @strWhere varchar(1000) = '' -- 查询条件 (注意: 不要加 where)
- AS
- declare @strSQL varchar(6000) -- 主语句
- declare @strTmp varchar(100) -- 临时变量
- declare @strOrder varchar(400) -- 排序类型
- if @OrderType != 0
- begin
- set @strTmp = "<(select min"
- set @strOrder = " order by [" + @fldName +"] desc"
- end
- else
- begin
- set @strTmp = ">(select max"
- set @strOrder = " order by [" + @fldName +"] asc"
- end
- set @strSQL = "select top " + str(@PageSize) + " * from ["
- + @tblName + "] where [" + @fldName + "]" + @strTmp + "(["
- + @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["
- + @fldName + "] from [" + @tblName + "]" + @strOrder + ") as tblTmp)"
- + @strOrder
- if @strWhere != ''
- set @strSQL = "select top " + str(@PageSize) + " * from ["
- + @tblName + "] where [" + @fldName + "]" + @strTmp + "(["
- + @fldName + "]) from (select top " + str((@PageIndex-1)*@PageSize) + " ["
- + @fldName + "] from [" + @tblName + "] where " + @strWhere + " "
- + @strOrder + ") as tblTmp) and " + @strWhere + " " + @strOrder
- if @PageIndex = 1
- begin
- set @strTmp = ""
- if @strWhere != ''
- set @strTmp = " where " + @strWhere
- set @strSQL = "select top " + str(@PageSize) + " * from ["
- + @tblName + "]" + @strTmp + " " + @strOrder
- end
- if @IsCount != 0
- set @strSQL = "select count(*) as Total from [" + @tblName + "]"
- exec (@strSQL)
- GO