Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

ASP.NETÔ¶³Ì±¸·Ý»Ö¸´SQL ServerÊý¾Ý¿â

///<summary>
      ///±¸·ÝÊý¾Ý¿âµ½±¾µØ´ÅÅÌ
      ///</summary>
    public bool BackUp(string BackUpFile)
    {
        try
        {
          //µÚÒ»²½£ºÔÚ·þÎñÆ÷ÉÏ´´½¨ÁÙʱÎļþ¼Ð
          ExecuteSql(@"master..xp_cmdshell 'md C:\temp'");
          ExecuteSql(@"master..xp_cmdshell 'del C:\temp\*.* /q'");
          //µÚ¶þ²½£º±¸·ÝÊý¾Ý¿âµ½·þÎñÆ÷Ŀ¼
          ExecuteSql(@"backup database " + DataBaseName() + @" to disk='C:\temp\HSSY'");
          //µÚÈý²½£º¹²Ïí·þÎñÆ÷µÄ±¸·ÝĿ¼
          ExecuteSql(@"master..xp_cmdshell 'net share SQLDATABACK=C:\temp'");
          //µÚËIJ½£º¸´ÖÆ·þÎñÆ÷Éϵı¸·ÝÎļþµ½±¾µØ
          File.Copy(@"\\" + ServerIP() + @"\SQLDATABACK\HSSY", BackUpFile,true);
          
          return true;
        }
        catch (System.Data.SqlClient.SqlException E)
        {
          throw new Exception(E.Message);
        }
      


Ïà¹ØÎĵµ£º

sql ²éÑ¯ÖØ¸´¼Ç¼2


========µÚһƪ=========
ÔÚÒ»ÕűíÖÐij¸ö×Ö¶ÎÏÂÃæÓÐÖØ¸´¼Ç¼£¬Óкܶ෽·¨£¬µ«ÊÇÓÐÒ»¸ö·½·¨£¬ÊDZȽϸßЧµÄ£¬ÈçÏÂÓï¾ä£º
select data_guid from adam_entity_datas a where a.rowid > (select min(b.rowid) from adam_entity_datas b where b.data_guid = a.data_guid)
Èç¹û±íÖÐÓдóÁ¿Êý¾Ý£¬µ«ÊÇÖØ¸´Êý¾Ý±È½ÏÉÙ£¬ÄÇô ......

SQL SERVER

sql server·Ö²¼Ê½ÊÂÎñ½â¾ö·½°¸
ÊÊÓû·¾³
²Ù×÷ϵͳ£ºwindows 2003
Êý¾Ý¿â£ºsql server 2000/sql server 2005
ʹÓÃÁ´½Ó·þÎñÆ÷½øÐÐÔ¶³ÌÊý¾Ý¿â·ÃÎʵÄÇé¿ö
Ò»¡¢  ÎÊÌâÏÖÏó
ÔÚÖ´Ðзֲ¼Ê½ÊÂÎñʱ£¬ÔÚsql server 2005ÏÂÊÕµ½ÈçÏ´íÎó£º
ÏûÏ¢ 7391£¬¼¶±ð 16£¬×´Ì¬ 2£¬¹ý³Ì xxxxx£¬µÚ 16 ÐÐ
ÎÞ·¨Ö´ÐиòÙ×÷£¬ÒòΪÁ´½Ó·þÎñ ......

C# SQLÊý¾Ý¿â²Ù×÷ͨÓÃÀà


C# SQLÊý¾Ý¿â²Ù×÷ͨÓÃÀà
using System;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
namespace Framework.DataBase
{
///
/// ͨÓÃÊý¾Ý¿âÀà
///
public class DataBase
{
private string ConnStr = null;
public DataBase()
{
 &nb ......

ÃæÊÔ±ØÐëÒªÖªµÀµÄSQLÓï·¨


asc °´ÉýÐòÅÅÁÐ
desc °´½µÐòÅÅÁÐ
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
SQL·ÖÀࣺ
DDL—Êý¾Ý¶¨ÒåÓïÑÔ(Create£¬Alter£¬Drop£¬DECLARE)
DML—Êý¾Ý²Ù×ÝÓïÑÔ(Select£¬Delete£¬Update£¬Insert)
DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
1¡¢ËµÃ÷£º´ ......

SQL ServerºÍOracleµÄ³£Óú¯Êý¶Ô±È

 ---------Êýѧº¯Êý
1.¾ø¶ÔÖµ
S:select abs(-1) value
O:select abs(-1) value from dual
2.È¡Õû(´ó)
S:select ceiling(-1.001) value
O:select ceil(-1.001) value from dual
3.È¡Õû£¨Ð¡£©
S:select floor(-1.001) value
O:select floor(-1.001) value from dual
4.È¡Õû£¨½ØÈ¡£©
S:select cast ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ