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         string str = "Create Database " + "DBname";
         string con = "Data Source=10.0.0.249\\sql2005;Initial Catalog=master;Persist Security Info=True;User ID=sa;Password=sa";
            SqlConnection myConn = new SqlConnection(con);
            SqlCommand myCommand = new SqlCommand(str, myConn);
            try
            {
                myConn.Open();
                myCommand.ExecuteNonQuery();
                Console.WriteLine("SQL Óï¾äÖ´ÐÐÍê³É¡£", "MyProgram");
            }
            catch (System.Exception ex)
            {
                Console.WriteLine(ex.ToString(), "MyProgram");
            }
            finally
            {
                if (myConn.State == ConnectionState.Open)
                {
                    myConn.Close();
   


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SQL Server 2005/2008 °²È«¼à¿Ø£¨´ýÐø£©

-- ²é¿´µ±Ç°dbµÄµÇ½
select * from sys.sql_logins
-- ÉóºËµÇ½Êý¾Ý¿âµÄÓû§
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Èç¹û¹´Ñ¡“ÆôÓÃC2ÉóºË¸ú×Ù”£¬½«»áÔÚ..MSSQL\Log\Ŀ¼ ......

sqlÓï¾ä¶à±í²éѯ

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--1.ѧÉú±í
Student(S#,Sname,Sage,Ssex) --S# ѧÉú±àºÅ,Sname ѧÉúÐÕÃû,Sage ³öÉúÄêÔÂ,Ssex ѧÉúÐÔ±ð
--2.¿Î³Ì±í
Course(C#,Cname,T#) --C# --¿Î³Ì±àºÅ,Cname ¿Î³ÌÃû³Æ,T# ½Ìʦ±àºÅ
--3.½Ìʦ±í
Teacher(T#,Tname) --T# ½Ìʦ±àºÅ,Tname ½ÌʦÐÕÃû
--4.³É¼¨±í
SC(S#,C#,score) --S# ѧÉú±àºÅ,C# ¿Î³Ì ......

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select sum(level) from dual
where mod(level,2)=0
connect by level
 
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merge into SNAPSHOT120_2010_572 t1
using (select a.rowid rid, b.vip_level, b.manager_name
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Flat hierarchyid in SQL Server 2008

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