ALTER PROCEDURE [dbo].[sp_TablesPage]
(
@tblName nvarchar(1000), ----要显示的表或多个表的连接
@fields nvarchar(1000)='*', ----要显示的字段列表
@sortfields nvarchar(100)='', ----如果多列排序,一定要带asc或者desc,则@singleSortType排序方法无效，反之,单列根据@singleSortType来处理
@singleSortType int = 1, ----排序方法，0为升序，1为降序
@pageSize int = 10, ----每页显示的记录个数
@pageIndex int = 1, ----要显示那一页的记录
@strCondition nvarchar(1000)='', ----查询条件,不需where
@Counts int =1 output ----查询到的记录数
)
AS
/*
作者：
时间：2015－08－26
功能：实现多表分页查询；
*/
declare @sqlTmp nvarchar(2000)
declare @sqlGetCount nvarchar(2000)
declare @frontOrder nvarchar(200)
declare @behindOrder nvarchar(200)
declare @start nvarchar(20)
declare @end nvarchar(20)
declare @pageCount INT
if @strCondition=''
set @strCondition=' where 1=1'
else
set @strCondition=' where '+@strCondition
begin
if charindex(',',@sortfields,0)>0--多列排序,则@singleSortType排序方法无效
begin
set @frontOrder = @sortfields--获取分页前半部分数据的排序规则
set @behindOrder = replace(@frontOrder,'desc','desctmp')
set @behindOrder = replace(@behindOrder,'asc','desc')
set @behindOrder = replace(@behindOrder,'desctmp','asc')--获取分页后半部分数据的排序规则
end
else--单列
begin
set @sortfields=replace(replace(@sortfields,'desc',''),'asc','')--替换掉结尾的规则,用@singleSortType值来处理排序
if @singleSortType=1--倒序
begin
set @frontOrder = @sortfields + ' desc'
set @behindOrder = @sortfields + ' asc'
end
else
begin
set @frontOrder = @sortfields + ' asc'
set @behindOrder = @sortfields + ' desc'
end
end
--获取记录数
set @sqlGetCount = 'select @Counts=count(*) from ' + @tblName + @strCondition
----取得查询结果总数量-----
exec sp_executesql @sqlGetCount,N'@Counts int out ',@Counts out
declare @tmpCounts int
if @Counts = 0
set @tmpCounts = 1
else
set @tmpCounts = @Counts
--取得分页总数
set @pageCount=(@tmpCounts+@pageSize-1)/@pageSize
/**当前页大于总页数 取最后一页**/
if @pageIndex>@pageCount
set @pageIndex=@pageCount
/*-----数据分页2分处理-------*/
declare @pageIndexNew int --总数/页大小
declare @lastcount int --总数%页大小 最后一页的数据量
set @pageIndexNew = @tmpCounts/@pageSize
set @lastcount = @tmpCounts%@pageSize
if @lastcount > 0
set @pageIndexNew = @pageIndexNew + 1
else
set @lastcount = @pagesize
--取得数据的逻辑分析
if @pageIndexNew<2 or @pageIndex<=@pageIndexNew / 2 + @pageIndexNew % 2 --前半部分数据处理
begin
--计算开始结束的行号
set @start = @pageSize*(@pageIndex-1)+1
set @end = @start+@pageSize-1
set @sqlTmp='SELECT * FROM (select '+@fields+',ROW_NUMBER() OVER ( Order by '+@frontOrder+' ) AS RowNumber From '+@tblName+@strCondition+') T WHERE T.RowNumber BETWEEN '+@start+' AND '+@end
end
else
begin
set @pageIndex = @pageIndexNew-@pageIndex+1 --后半部分数据处理
if @lastcount=@pageSize --如果正好是整数页
begin
set @start = @pageSize*(@pageIndex-1)+1
set @end = @start+@pageSize-1
end
else
begin
set @start = @lastcount+@pageSize*(@pageIndex-2)+1
set @end = @start+@pageSize-1
end
set @sqlTmp='select top '+@end+' * FROM (select '+@fields+',ROW_NUMBER() OVER ( Order by '+@behindOrder+' ) AS RowNumber From '+@tblName+@strCondition+') T WHERE T.RowNumber BETWEEN '+@start+' AND '+@end+' order by RowNumber desc '
end
end
exec sp_executesql @sqlTmp
调用:
public DataTable TablesPage(string tableName, string fields, string sortfield, bool singleSortType, int pageSize, int pageIndex, string condition, out int count, List<IDbDataParameter> listParameters = null)
{
var outParmeter = DbManager.OutputParameter("@Counts", SqlDbType.Int);
ListParameters = new List<IDbDataParameter>
{
DbManager.InputParameter("@tblName", tableName),
DbManager.InputParameter("@fields", fields),
DbManager.InputParameter("@sortfields", sortfield),
DbManager.InputParameter("@singleSortType", singleSortType ? "1" : "0"),
DbManager.InputParameter("@pageSize", pageSize),
DbManager.InputParameter("@pageIndex", pageIndex),
DbManager.InputParameter("@strCondition", condition),
outParmeter
};
DbManager.Command.Parameters.Add(new SqlParameter("@@ForumId", "123"));
//if (listParameters != null) ListParameters.AddRange(listParameters);
var dt = DbManager.SetCommand(CommandType.StoredProcedure, "sp_TablesPage", ListParameters.ToArray()).ExecuteDataTable();
count = (int)outParmeter.Value;
return dt;
}
用的BLToolkit这个ORM
在线等...急....
