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C#Á¬½ÓSQL ServerµÄSqlConnectionµÄ×Ö·û´®£¬Ðí¶à¶¼ÊDz»ÄÜÁ¬½ÓµÄ¡£ÏÖÔÚ¸øÒ»¸öÄÜÁ¬½ÓµÄ£º
using System.Data.SqlClient;
public class sqlServerConnection {
//
public static void Main() {
//ÏÂÃæ¾ÍÊDZê×¼µÄÁ¬½Ó£¬×¢ÒâSERVERÊÇÎҵļÆËã»úÃû¡£SQLEXPRESSÊÇÊý¾Ý¿âʵÀý¡£SSPI±íʾʹÓÃWindowsµÇ½µÄÕÊ»§¡£masterÊÇÒªÁ¬½ÓµÄÊý¾Ý¿â¡£
//
string cstr = "server=SERVER\\SQLEXPRESS;Initial Catalog=master;Integrated Security=SSPI";
//
try {
//
using (SqlConnection con = new SqlConnection(cstr)) {
con.Open();
System.Console.WriteLine("ServerVersion:{0}",con.ServerVersion);
System.Console.WriteLine("State:{0}",con.State);
}
//
}
catch (System.Exception sqle) {
System.Console.WriteLine(sqle.Message);
}
//
}
//
}
/*
³ÌÐòµÄÊä³ö£º
ServerVersion:09.00.3042
State:Open
*/
//²»Ê¹ÓÃÔ¶³ÌÁ¬½ÓµÄʱºòÓ¦¸Ã°ÑÁ¬½Ó×Ö·û´®¸ÄΪ£º
"Server=localhost\\SQLExpress;Integrated Security=SSPI"
//Ò²¿ÉÒÔÖ¸¶¨Ä¬ÈϵÄÊý¾Ý¿â£¬ÀýÈ磬ָ¶¨Ä¬ÈÏÊý¾Ý¿âÊÇ"master"¾ÍÓ¦¸ÃдΪ£º
"Server=localhost\\SQLExpress;Initial Catalog=master;Integrated Security=SSPI"
»òÕߣº"Server=localhost\\SQLExpress;Initial Catalog=master;Uid=sa;Pwd=sa"
B/SģʽÁ¬½ÓÊý¾Ý¿â£º
string sql="Source=·þÎñÆ÷Ip;database=Êý¾Ý¿âÃû³Æ;UID=sa;Password=sasa;";
C/SģʽÁ¬½ÓÊý¾Ý¿â£º
string sql="Data Source=·þÎñÆ÷Ip;Initial Catalog=Êý¾Ý¿âÃû³Æ;User ID=sa;password=sa";
Á¬½ÓSQL Server 2005 ExpressµÄÎÊÌâ
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where  ¹Ø¼ü×ÖµÄʹÓÃ
public void MyWhere()
{
NorthwindDataContext dc = new NorthwindDataContext();
//²éѯ²úÆ·Ãû³ÆÒÔL¿ªÍ·µÄ¼Ç¼
var query = from p in dc.Products
where p.Prod ......

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Linq to sqlÔöɾ¸Ä²é

private void button2_Click(object sender, EventArgs e)//Ôö
{
try
{
Customers ct = new Customers();
ct.CustomerID = "test";
ct.CompanyName = "test";
NorthwindDataContext nc = new NorthwindDataContex ......

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and exists (select * from sysobjects) //ÅжÏÊÇ·ñÊÇMSSQL
and exists(select * from tableName) //ÅжÏij±íÊÇ·ñ´æÔÚ..tableNameΪ±íÃû
and 1=(select @@VERSION) //MSSQL°æ±¾
And 1=(select db_name()) //µ±Ç°Êý¾Ý¿âÃû
and 1=(select @@servername) //±¾µØ·þÎñÃû
and 1=(select IS_SRVROLEMEMBER('sysadmin')) //Å ......

c#ÖиßЧµÄexcelµ¼ÈësqlserverµÄ·½·¨

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