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///<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);
}
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ORACLE sql µÄ´¦Àí¹ý³Ì´óÖÂÈçÏ£º
1.ÔËÓÃHASHËã·¨£¬µÃµ½Ò»¸öHASHÖµ£¬Õâ¸öÖµ¿ÉÒÔͨ¹ýV$SQLAREA.HASH_VALUE ²é¿´
2.µ½shared pool ÖÐµÄ library cache ÖвéÕÒÊÇ·ñÓÐÏàͬµÄHASHÖµ£¬Èç¹û´æÔÚ£¬ÔòÎÞÐèÓ²½âÎö£¬½øÐÐÈí½âÎö
3.Èç¹ûshared pool²»´æÔÚ´ËHASHÖµ£¬Ôò½øÐÐÓï·¨¼ì²é£¬²é¿´ÊÇ·ñÓÐÓï·¨´íÎó
&nbs ......
(1)SEQNAME.NEXTVALÀïÃæµÄÖµÈçºÎ¶Á³öÀ´£¿¿ÉÒÔÖ±½ÓÔÚinsert into test values(SEQNAME.NEXTVAL) ÊÇ¿ÉÒÔÓà ÕâÑù£º
SELECT tmp#_seq.NEXTVAL
INTO id_temp
from DUAL; È»ºó¿ÉÒ ......
ÓÉÓÚ´¦ÓÚϵͳ¿ª·¢µÄºóÆÚ£¬ÐèÒª¸ø¿Í»§ÑÝʾ¡£·¢ÏÖ´óÁ¿µÄ±í£¬´æÔÚ´óÁ¿µÄ²âÊÔÊý¾Ý¡£ÐèÒªÇå³ý£¬ÓÓdelete from tablename” --> ÔÎËÀ¡£ºóÀ´·¢ÏÖ¾ÓÈ»ÓÐÕâôǿ´óµÄ¶«¶«¡£ £º£©
EXECUTE sp_msforeachtable 'delete from ?'
......
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 ......
ALTER DATABASE AdventureWorks ADD FILEGROUP [2003Q3]
´´½¨Îļþ×éºó£¬Ê¹Óà ALTER DATABASE ½«ÎļþÌí¼Óµ½¸ÃÎļþ×éÖС£
ALTER DATABASE AdventureWorks
ADD FILE
(NAME = N'2003Q3',
FILENAME = N'C:\AdventureWorks\2003Q3.ndf',
SIZE = 5MB,
MAXSIZE = 100MB,
FILEGROWTH = 5MB)
TO FILEGR ......