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 ......

Oracle Tuning

¡¡     ¹ØÓÚOracleµÄÐÔÄܵ÷Õû£¬Ò»°ã°üÀ¨Á½¸ö·½Ã棬һÊÇÖ¸OracleÊý¾Ý¿â±¾ÉíµÄµ÷Õû£¬±ÈÈçSGA¡¢PGAµÄÓÅ»¯ÉèÖ㬶þÊÇÁ¬½ÓOracleµÄÓ¦ÓóÌÐòÒÔ¼°SQLÓï¾äµÄÓÅ»¯¡£×öºÃÕâÁ½¸ö·½ÃæµÄÓÅ»¯£¬¾Í¿ÉÒÔʹһÌ×ÍêÕûµÄOracleÓ¦ÓÃϵͳ´¦ÓÚÁ¼ºÃµÄÔËÐÐ״̬¡£
¡¡¡¡ ±¾ÎÄÖ÷ÒªÊǰÑһЩOracle TuningµÄÎÄÕÂ×÷ÁËÒ»¸ö¼òµ¥µÄ×ܽᣬ ......

(Oracle£©rownumÓ÷¨Ïê½â

(Oracle£©rownumÓ÷¨Ïê½â
2008-08-06 15:41
¶ÔÓÚrownumÀ´ËµËüÊÇoracleϵͳ˳Ðò·ÖÅäΪ´Ó²éѯ·µ»ØµÄÐеıàºÅ£¬·µ»ØµÄµÚÒ»ÐзÖÅäµÄÊÇ1£¬µÚ¶þÐÐÊÇ2£¬ÒÀ´ËÀàÍÆ£¬Õâ¸öα×ֶοÉÒÔÓÃÓÚÏÞÖÆ²éѯ·µ»ØµÄ×ÜÐÐÊý£¬ÇÒrownum²»ÄÜÒÔÈκαíµÄÃû³Æ×÷Ϊǰ׺¡£
(1) rownum ¶ÔÓÚµÈÓÚijֵµÄ²éѯÌõ¼þ
Èç¹ûÏ£ÍûÕÒµ½Ñ§Éú±íÖеÚÒ»ÌõѧÉúµÄÐÅÏ¢£¬¿É ......

ÈçºÎ¼ÓËÙOracle´óÅúÁ¿Êý¾Ý´¦Àí

ÈçºÎ¼ÓËÙ
Oracle
´óÅúÁ¿Êý¾Ý´¦Àí
Ò»¡¢          
Ìá¸ß
DML
²Ù×÷µÄ°ì·¨£º
¼òµ¥ËµÀ´£º
£±¡¢ÔÝÍ£Ë÷Òý£¬¸üкó»Ö¸´.
±ÜÃâÔÚ¸üеĹý³ÌÖÐÉæ¼°µ½Ë÷ÒýµÄÖØ½¨.
£²¡¢ÅúÁ¿¸üУ¬Ã¿¸üÐÂһЩ¼Ç¼ºó¼°Ê±½øÐÐÌá½»¶¯×÷.
±ÜÃâ´óÁ¿Õ¼Óûعö¶ÎºÍ»òÁÙʱ±í¿Õ¼ä.
£³¡¢´´½¨Ò»ÁÙʱ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ