CREATE PROCEDURE sp_page
@tblName varchar(255),
@strGetFields varchar(1000) ,
@fldName varchar(255),
@PageSize int ,
@PageIndex int ,
@doCount bit,
@OrderType bit ,
@strWhere varchar(1500)
AS
declare @strSQL varchar(5000)
declare @strTmp varchar(110)
declare @strOrder varchar(400)
if @doCount != 0
begin
if @strWhere !=""
set @strSQL = "select count(*) as Total from [" + @tblName + "] where "+@strWhere
else
set @strSQL = "select count(*) as Total from [" + @tblName + "]"
end
else
begin
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
if @PageIndex =0
begin
if @strWhere !=""
set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+ " from [" + @tblName + "] where " + @strWhere + " " + @strOrder
else
set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+ " from ["+ @tblName + "] "+ @strOrder
end
else
begin
set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+ " from ["+ @tblName + "] where [" + @fldName + "]" + @strTmp + "(["+ @fldName +
"]) from (select top " + str(@PageIndex*@PageSize) + " ["+ @fldName +
"] from [" + @tblName + "]" + @strOrder + ") as tblTmp)"+ @strOrder
if @strWhere !=""
set @strSQL = "select top " + str(@PageSize) +" "+@strGetFields+ " from ["
+ @tblName + "] where [" + @fldName + "]" + @strTmp + "(["
+ @fldName + "]) from (select top " + str(@PageIndex*@PageSize) + " ["
+ @fldName + "] from [" + @tblName + "] where " + @strWhere + " "
+ @strOrder + ") as tblTmp) and " + @strWhere + " " + @strOrder
end
end
exec (@strSQL)
GO
c#实现代码为：
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.SqlClient;
using System.Threading;
using System.Text;
namespace WindowsApplication4
{
/**//// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Label label1;
int threadindex=0;
/**//// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/**//// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
Windows 窗体设计器生成的代码#region Windows 窗体设计器生成的代码
/**//// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(208, 368);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(144, 40);
this.button1.TabIndex = 0;
this.button1.Text = "button1";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// label1
//
this.label1.Location = new System.Drawing.Point(40, 8);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(496, 336);
this.label1.TabIndex = 1;
this.label1.Text = "label1";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(584, 422);
this.Controls.Add(this.label1);
this.Controls.Add(this.button1);
this.Name = "Form1";
this.Text = "Form1";
this.ResumeLayout(false);
}
#endregion
/**//// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void button1_Click(object sender, System.EventArgs e)
{
threadindex=0;
for(int i=0;i<30;i++)
{
// Thread myThread = new Thread(new ThreadStart(dosome));
// myThread.IsBackground=true;
// myThread.Name="dothread"+i.ToString();
// myThread.Start();
ThreadPool.QueueUserWorkItem(new WaitCallback(dosome));
}
//dosome();
}
public void dosome(Object obj)
{
SqlConnection _connection=new SqlConnection("server=192.168.0.8;uid=sa;pwd=;database=dbtest;persist security info=False;packet size=4096");
SqlParameter[] sqlParameters1 = new SqlParameter[]{
new SqlParameter("@tblName",SqlDbType.VarChar,255),
new SqlParameter("@strGetFields", SqlDbType.VarChar, 1000),
new SqlParameter("@fldName",SqlDbType.VarChar,255),
new SqlParameter("@PageSize",SqlDbType.Int,4),
new SqlParameter("@PageIndex",SqlDbType.Int,4),
new SqlParameter("@doCount",SqlDbType.Bit),
new SqlParameter("@OrderType",SqlDbType.Bit),
new SqlParameter("@strWhere",SqlDbType.VarChar,1500)
};
sqlParameters1[0].Value = "songs";
sqlParameters1[1].Value = "*";
sqlParameters1[2].Value = "ssongname";
sqlParameters1[3].Value = 10;
sqlParameters1[4].Value =threadindex;
sqlParameters1[5].Value =false;
sqlParameters1[6].Value = true;
sqlParameters1[7].Value =" SongNameLength=4 ";
SqlDataReader dataread=null;
try
{
dataread=RunProcedure("sp_page",sqlParameters1,_connection);
}
catch (SqlException e)
{
MessageBox.Show(e.ToString());
}
StringBuilder sb=new StringBuilder();
if(dataread.Read())
{
while(dataread.Read())
{
sb.Append(dataread["ssongname"]);
sb.Append("\n");
}
}
dataread.Close();
label1.Text=String.Empty;
label1.Text=sb.ToString();
threadindex++;
}
private SqlCommand BuildQueryCommand(string storedProcName, IDataParameter[] parameters,SqlConnection _connection)
{
SqlCommand sqlCommand = new SqlCommand(storedProcName, _connection);
sqlCommand.CommandType = CommandType.StoredProcedure;
IDataParameter[] iDataParameters = parameters;
for (int i = 0; i < (int)iDataParameters.Length; i++)
{
SqlParameter sqlParameter = (SqlParameter)iDataParameters[i];
sqlCommand.Parameters.Add(sqlParameter);
}
return sqlCommand;
}
protected SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters,SqlConnection _connection)
{
_connection.Open();
SqlCommand sqlCommand = BuildQueryCommand(storedProcName, parameters,_connection);
sqlCommand.CommandType = CommandType.StoredProcedure;
return sqlCommand.ExecuteReader(CommandBehavior.CloseConnection);
}
}
}
posted on 2005-06-30 16:30
MyRiverMan 阅读(250)
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