--execute sp_Pager 'DeliveryOperator','*',10,2,10,100,'DO_ID',1,'','DO_ID',0;
CREATE PROCEDURE sp_Pager
(
@tableName NVARCHAR(200), ----要显示的表或多个表的连接
@fieldNames NVARCHAR(200)='*', ----要显示的字段列表
@pageSize INT = 10, ----每页显示的记录个数
@page INT = 10, ----要显示那一页的记录
@pageCount INT = 1 output, ----查询结果分页后的总页数
@counts INT = 1 output, ----查询到的总记录数
@fieldSort NVARCHAR(200)= null,----排序字段列表或条件
@sort BIT = 1, ----排序方法,0为升序,1为降序--程序传参如:' SortA Asc,SortB Desc,SortC ')
@condition NVARCHAR(200)= null,----查询条件,不需WHERE
@keyID NVARCHAR(100), ----主表的主键
@distinct BIT = 0 ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
)
AS
SET NOCOUNT ON
Declare @SELECT NVARCHAR(1000) ----存放动态生成的SQL语句
Declare @strCounts NVARCHAR(1000) ----存放取得查询结果总数的查询语句
Declare @strID NVARCHAR(1000) ----存放取得查询开头或结尾ID的查询语句
Declare @sortTypeA NVARCHAR(10) ----数据排序规则A
Declare @SortTypeB NVARCHAR(10) ----数据排序规则B
Declare @distSelect NVARCHAR(50) ----对含有DISTINCT的查询进行SQL构造
Declare @distCounts NVARCHAR(50) ----对含有DISTINCT的总数查询进行SQL构造
DECLARE @SortfieldA NVARCHAR(50) ----对含有是否还有排序字段时的排序方式组合A
DECLARE @SortfieldB NVARCHAR(50) ----对含有是否还有排序字段时的排序方式组合B
IF @distinct = 0
BEGIN
SET @distSelect = 'SELECT '
SET @distCounts = ' COUNT(*)'
END
ELSE
BEGIN
SET @distSelect = 'SELECT distinct '
SET @distCounts = ' COUNT(DISTINCT
'+@keyID+')' END
IF @sort=0
BEGIN
SET @SortTypeB=' ASC '
SET @sortTypeA=' DESC '
END
ELSE
BEGIN
SET @SortTypeB=' DESC '
SET @sortTypeA=' ASC '
END
IF @fieldSort IS NOT NULL AND @fieldSort<>'' --排序字段不为空时
BEGIN
SET @SortfieldB=' order by '+ @fieldSort +' '+ @SortTypeB
SET @SortfieldA=' order by '+ @fieldSort +' '+ @SortTypeA
END
ELSE
BEGIN
SET @SortfieldB=''
SET @SortfieldA=''
END
--------生成查询语句--------
--此处@strCounts为取得查询结果数量的语句
IF @condition is null or @condition='' --没有设置显示条件
BEGIN
SET @SELECT = @fieldNames + ' FROM ' + @tableName
SET @strCounts = @distSelect+' @counts='+@distCounts+' FROM
'+@tableName SET @strID = ' FROM ' + @tableName
END
ELSE
BEGIN
SET @SELECT = + @fieldNames + 'FROM ' + @tableName + ' WHERE ' + @condition
SET @strCounts = @distSelect+' @counts='+@distCounts+' FROM
'+@tableName + ' WHERE ' + @condition
SET @strID = ' FROM ' + @tableName + ' WHERE ' + @condition
END
----取得查询结果总数量-----
exec sp_executesql @strCounts,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 @page>@pageCount
SET @page=@pageCount
--/*-----数据分页2分处理-------*/
DECLARE @pageIndex INT --总数/页大小
DECLARE @lastcount INT --总数%页大小
SET @pageIndex = @tmpCounts/@pageSize
SET @lastcount = @tmpCounts%@pageSize
IF @lastcount > 0
SET @pageIndex = @pageIndex + 1
ELSE
SET @lastcount = @pageSize
--显示分页
IF @condition is null or @condition='' --没有设置显示条件
BEGIN
IF @pageIndex<2 or @page<
=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
BEGIN
SET @strCounts=@distSelect+' TOP '+ CAST(@pageSize as VARCHAR(4))+' '+ @fieldNames+' FROM
'+@tableName + ' WHERE
'+@keyID+' not in('+ @distSelect+' TOP '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @keyID +' FROM
'+@tableName + @SortfieldB +')' + @SortfieldB
END
ELSE
BEGIN
SET @page = @pageIndex-@page+1 --后半部分数据处理
IF @page <= 1 --最后一页数据显示
SET @strCounts=@distSelect+' * FROM (
'+@distSelect+' TOP '+ CAST(@lastcount as VARCHAR(4))+' '+ @fieldNames+' FROM
'+@tableName + @SortfieldA+') AS TempTB
'+@SortfieldB ELSE
SET @strCounts=@distSelect+' * FROM (
'+@distSelect+' TOP '+ CAST(@pageSize as VARCHAR(4))+' '+ @fieldNames+' FROM
'+@tableName + ' WHERE
'+@keyID+' not in('+ @distSelect+' TOP '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @keyID +' FROM
'+@tableName + @SortfieldA+')' + @SortfieldA+') AS TempTB
'+@SortfieldB END
END
ELSE --有查询条件
BEGIN
IF @pageIndex<2 or @page<
=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
BEGIN
SET @strCounts=@distSelect+' TOP '+ CAST(@pageSize as VARCHAR(4))+' '+ @fieldNames +' FROM
'+@tableName + ' WHERE
'+@keyID+' not in('+ @distSelect+' TOP '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @keyID +' FROM
'+@tableName + ' Where ' + @condition + @SortfieldB+')'+' AND ' + @condition + @SortfieldB
END
ELSE
BEGIN
SET @page = @pageIndex-@page+1 --后半部分数据处理
IF @page <= 1 --最后一页数据显示
SET @strCounts=@distSelect+' * FROM (
'+@distSelect+' TOP '+ CAST(@lastcount as VARCHAR(4))+' '+ @fieldNames+' FROM
'+@tableName + ' WHERE '+ @condition
+@SortfieldA+') AS TempTB
'+@SortfieldB ELSE
SET @strCounts=@distSelect+' * FROM (
'+@distSelect+' TOP '+ CAST(@pageSize as VARCHAR(4))+' '+ @fieldNames+' FROM
'+@tableName + ' WHERE
'+@keyID+' not in('+ @distSelect+' TOP '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' ' + @keyID +' FROM
'+@tableName +' WHERE '+ @condition
+@SortfieldA+')' +' AND '+ @condition
+@SortfieldA+') AS TempTB ' + @SortfieldB
END
END
------返回查询结果-----
exec sp_executesql @strCounts
SET NOCOUNT OFF
//C#中调用
public static string ConnString = System.Configuration.ConfigurationManager.AppSettings["ConnString"].ToString();
//Added by Sheetal
public static DataTable GetDataTableByProcedure(int pageSize, int pageCurrent, string tblName, string fldNames, string fldOrderName, bool orderType, string whereStr, string keyID, bool distinct, out int countRows)
{
DataSet ds = new DataSet();
countRows = 0;
SqlConnection conn = new SqlConnection(ConnString);
try
{
conn.Open();
//设置参数
SqlCommand cmd = new SqlCommand("Sp_Pager", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Clear();
cmd.Parameters.Add(new SqlParameter("@tableName", SqlDbType.VarChar, 255));
cmd.Parameters.Add(new SqlParameter("@fieldNames", SqlDbType.VarChar, 1000));
cmd.Parameters.Add(new SqlParameter("@pageSize", SqlDbType.Int, 4));
cmd.Parameters.Add(new SqlParameter("@page", SqlDbType.Int, 4));
cmd.Parameters.Add(new SqlParameter("@pageCount", SqlDbType.Int, 8));
cmd.Parameters.Add(new SqlParameter("@counts", SqlDbType.Int, 8));
cmd.Parameters.Add(new SqlParameter("@fieldSort", SqlDbType.VarChar, 255));
cmd.Parameters.Add(new SqlParameter("@sort", SqlDbType.Bit, 1));
cmd.Parameters.Add(new SqlParameter("@condition", SqlDbType.VarChar, 1500));
cmd.Parameters.Add(new SqlParameter("@keyID", SqlDbType.VarChar, 100));
cmd.Parameters.Add(new SqlParameter("@distinct", SqlDbType.Bit, 1));
cmd.Parameters["@tableName"].Value = tblName;
cmd.Parameters["@fieldNames"].Value = fldNames;
cmd.Parameters["@pageSize"].Value = pageSize;
cmd.Parameters["@page"].Value = pageCurrent;
cmd.Parameters["@pageCount"].Direction = ParameterDirection.Output;
cmd.Parameters["@counts"].Direction = ParameterDirection.Output;
cmd.Parameters["@fieldSort"].Value = fldOrderName;
cmd.Parameters["@sort"].Value = orderType;
cmd.Parameters["@condition"].Value = whereStr;
cmd.Parameters["@keyID"].Value = keyID;
cmd.Parameters["@distinct"].Value = distinct;
//设置参数结束
SqlDataAdapter dp = new SqlDataAdapter();
dp.SelectCommand = cmd;
//执行
dp.Fill(ds);
//记录总数
countRows = int.Parse(cmd.Parameters["@counts"].Value.ToString().Trim());
//pageCount = int.Parse(cmd.Parameters["@pageCount"].Value.ToString().Trim());
//
// return ds.Tables[0];
}
catch (Exception ex)
{
// throw (ex);
ds = null;
}
finally
{
conn.Close();
}
if (ds != null)
{
return ds.Tables[0];
}
else
{
return null;
}
}