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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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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
from xyf_vip_info_new b, snapsho ......
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using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Data.SqlClient;
using System.Runtime.InteropServices;
namespace entryclass
{
  ......
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ÀýÈ磬ÏÂÃæµÄÓï¾ä²éѯtesttable±íÖÐÐÕÃûΪ“ÕÅÈý”µÄnickname×ֶκÍemail×ֶΡ£
SELECT nickname,email
from testtable WHERE name='ÕÅÈý'
(Ò»)Ñ¡ÔñÁбí
¡ ......
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datalength(Char_expr) ·µ»Ø×Ö·û´®°üº¬×Ö·ûÊý,µ«²»°üº¬ºóÃæµÄ¿Õ¸ñ
substring(expression,start,length) ²»¶à˵ÁË,È¡×Ó´®
right(char_expr,int_expr) ·µ»Ø×Ö·û´®ÓÒ±ßint_expr¸ö×Ö·û
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upper(char_expr) תΪ´óÐ ......