C#»·¾³ÏÂÍùoracleÖеÄblob×ֶβåÈëÎļþ
Ìí¼ÓÒýÓÃ
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
¡¡ 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 ......
OracleÊý¾Ýµ¼Èëµ¼³öimp/exp¾ÍÏ൱ÓÚoracleÊý¾Ý»¹ÔÓ뱸·Ý¡£expÃüÁî¿ÉÒÔ°ÑÊý¾Ý´ÓÔ¶³ÌÊý¾Ý¿â·þÎñÆ÷µ¼³öµ½±¾µØµÄdmpÎļþ£¬impÃüÁî¿ÉÒÔ°ÑdmpÎļþ´Ó±¾µØµ¼Èëµ½Ô¶´¦µÄÊý¾Ý¿â·þÎñÆ÷ÖС£ ÀûÓÃÕâ¸ö¹¦ÄÜ¿ÉÒÔ¹¹½¨Á½¸öÏàͬµÄÊý¾Ý¿â£¬Ò»¸öÓÃÀ´²âÊÔ£¬Ò»¸öÓÃÀ´ÕýʽʹÓá£
Ö´Ðл·¾³£º¿ÉÒÔÔÚSQLPLUS.EXE»òÕßDOS£¨ÃüÁîÐУ©ÖÐÖ´ÐУ¬
DOSÖп ......
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 ......
(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 ......
ÍæOracleÒ²ÓÐ2ÄêµÄʱ¼äÁË£¬ ÁãÁãɢɢµÄÒ²ÕûÀíһЩ×ÊÁÏ¡£ ¶«Î÷Ò»¶àÁË£¬¾ÍÀí²»Çå³þ¡£ ËùÒÔ½áºÏÕÅÏþÃ÷µÄ¡¶´ó»°Oracle RAC¡·µÄһЩÄÚÈÝ£¬ºÍ×Ô¼ºÕûÀíµÄһЩ±Ê¼Ç£¬¶ÔOracle µÄ±¸·ÝºÍ»Ö¸´×öÁËÒ»¸öϵͳµÄÕûÀí¡£ Ò²ÊÇ×Ô¼º¶Ô֪ʶµÄÒ»¸ö¹®¹Ì°É¡£
Ò»£® ×¼±¸ÖªÊ¶
ÏÈÀ´¿´Ò»Ð©×¼±¸ÖªÊ¶£¬Á˽â ......