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

C#»·¾³ÏÂÍùoracleÖеÄblob×ֶβåÈëÎļþ

Ìí¼ÓÒýÓà           
using System.Data.OracleClient;
Ö÷ÒªÓõ½ÁËÁ½¸öÀà
System.Data.OracleClient.OracleConnection ±íʾһ¸öµ½Êý¾Ý¿âµÄÁ¬½Ó¡£´ËÀàÎÞ·¨¼Ì³Ð¡£
System.Data.OracleClient.OracleCommand   ±íʾÕë¶ÔÊý¾Ý¿âÖ´ÐÐµÄ SQL Óï¾ä»ò´æ´¢¹ý³Ì¡£´ËÀàÎÞ·¨¼Ì³Ð¡£
m_pathΪÒѾ­»ñÈ¡µÄÎļþÃû(full name)
±íFJ_SÖж¨ÒåÁËÈý¸ö×Ö¶ÎXM_ID(varchar(50)),XM_NAME(varchar(50),FJ_FILE(blob)
        private bool InputRecordToOracle(string sFilePath
        {
            if (m_Path == null)
            {
                return false;
            }
            //»ñµÃÎļþÁ÷
            System.IO.FileStream pFS = new System.IO.FileStream(m_Path, FileMode.Open, FileAccess.Read);
            Byte[] pBuffer = new Byte[pFS.Length];//°ÑÎļþת³ÉByteÐͶþ½øÖÆÁ÷
            pFS.Read(pBuffer, 0, pBuffer.Length);//°Ñ¶þ½øÖÆÁ÷¶ÁÈ뻺³åÇø
            pFS.Close();
            try
            {
                string sConnecStr = "Data Source=*;User ID=*;Password=*";
                OracleConnection pConn = new OracleConnection(sConnecStr);
          &n


Ïà¹ØÎĵµ£º

oracleÖжÔÏó±í£¬ref¼°derefµÄÒ»¸öʵÀý¡£

ORACLEÔÚ¹ØÏµÊý¾Ý¿âÍ⣬ÈÚÈëÁËÃæÏò¶ÔÏóµÄÔªËØ£¬±ÈÈç¿ÉÒÔ´´½¨type£¬typeÖ®¼ä¿ÉÒԼ̳У¬type¿ÉÒÔ´ø¹¹Ô캯Êý¡¢ÅÅÐòº¯Êý¡¢¸÷ÖÖ¸÷ÑùµÄ³ÉÔ±º¯Êý¡¢´æ´¢¹ý³ÌµÈµÈ¡£
¶ÔÏó±íÊÇÖ¸¸Ã±íµÄÒ»ÐоÍÊÇÒ»¸ö¶ÔÏó£¬ÓÐÒ»¸öOID(object ID)£¬¶ÔÏó±íÖ®¼äûÓÐÖ÷Íâ¼ü¹ØÁªµÄ¸ÅÄΪÁËÌåÏÖÕâ²ã¹ØÏµ£¬oracleÖÐÓÃÁËref¶ÔÏóÀ´ÊµÏÖ¡£
ÏÂÃæÀý×Ó£¬´´½¨Ò»¸öµ ......

OracleÊý¾Ý¿âÀ䱸·Ý»Ö¸´µÄ²½Öè

     À䱸·ÝÊý¾Ý±ØÐëÊÇÊý¾Ý¿â²»ÔÚopen״̬Ï¡£ ÒÔϲ½Öè»á¸ø³öÏêϸµÄ¹ý³Ì£º
¡¡¡¡(1)£º ¹Ø±ÕDB £º shutdown immediate£»
¡¡¡¡(2)£ºcopy oradataĿ¼ÏµÄËùÓÐÎļþ£¬ °üÀ¨Êý¾ÝÎļþ£¬ ¿ØÖÆÎļþ£¬redo£¬µÈ£¬»¹ÐèÒªcopy ÃÜÂëÎļþ ÔÚĿ¼ora92Ï µÄdatabase ÖеÄpwd Îļþ.È«²¿copyµ½Ò»¸ö°²È«Ä¿Â¼ÖС£ÔÚsql ......

OracleÊý¾Ý¿â½â³ýscottÓû§Ëø

1¡¢µÇ¼·½·¨:£ºsys or systemµÇ¼
Õ˺ţºsystem
ÃÜÂ룺system as sysdba---------¡·ÃÜÂë+as sysdba
      conn system/password as sysdba
ʹÓÃÃüÁ
sql>alter user scott account unlock;
sql> commit;
Í ......

OracleÊý¾Ý¿âÖеÄËø»úÖÆÑо¿

Êý¾Ý¿âÊÇÒ»¸ö¶àÓû§Ê¹ÓõĹ²Ïí×ÊÔ´¡£µ±¶à¸öÓû§²¢·¢µØ´æÈ¡Êý¾Ýʱ£¬ÔÚÊý¾Ý¿âÖоͻá²úÉú¶à¸öÊÂÎñͬʱ´æÈ¡Í¬Ò»Êý¾ÝµÄÇé¿ö¡£Èô¶Ô²¢·¢²Ù×÷²»¼Ó¿ØÖƾͿÉÄÜ»á¶ÁÈ¡ºÍ´æ´¢²»ÕýÈ·µÄÊý¾Ý£¬ÆÆ»µÊý¾Ý¿âµÄÒ»ÖÂÐÔ¡£
¼ÓËøÊÇʵÏÖÊý¾Ý¿â²¢·¢¿ØÖƵÄÒ»¸ö·Ç³£ÖØÒªµÄ¼¼Êõ¡£µ±ÊÂÎñÔÚ¶Ôij¸öÊý¾Ý¶ÔÏó½øÐвÙ×÷ǰ£¬ÏÈÏòϵͳ·¢³öÇëÇó£¬¶ÔÆä¼ÓËø¡£¼ÓËøºó ......

×î½üÔÚ×öOracleÁÙʱ±í¼ÓÔØ ×ªÔØÒ»¸öÒÔ±ã²éѯ

×ªÔØ
DML statements on temporary tables do not generate redo logs for the data changes. However, undo logs for the data 
and redo logs for the undo logs are generated. Data from the temporary table is automatically 
dropped in the case of session termination, either when the user logs o ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ