Oracle²é¿´Óû§Ëø±íÐÅÏ¢
select p.spid,
a.serial#,
c.object_name,
b.session_id,
b.oracle_username,
b.os_user_name
from v$process p,
v$session a,
v$locked_object b,
all_objects c
where p.addr = a.paddr
and a.process = b.process
and c.object_id = b.object_id
Ïà¹ØÎĵµ£º
Ò»¡¢ ÄÚ´æ½á¹¹
¹²Ïí³Ø£º·ÖΪ¿â¸ßËÙ»º´æºÍ×Öµä¸ßËÙ»º³åÇø
¿â¸ßËÙ»º´æ£¬ÓÃÓÚ´æ´¢¾¹ýÓï·¨·ÖÎö²¢ÇÒÕýÈ·µÄSQLÓï¾ä£¬²¢Ëæʱ׼±¸Ö´ÐС£
×Öµä¸ßËÙ»º³åÇø£¬´æ´¢µÇ½µ½ORACLEµÄÓû§Ãû£¬¼°ÕâЩÓû§ÓÐÄÄЩÊý¾Ý¿â¶ÔÏóÒÔ¼°ÕâЩÊý¾Ý¿â¶ÔÏóµÄλÖá£
Êý¾Ý»º ......
³ÌÐò°ü
°üÖ÷Ìå/¹æ·¶Ãû×ÖÒ»Ñù
°üÖ÷Ìå/¹æ·¶ÖеĶÔÓ¦²ÎÊý±ØÐëÀàÐͼ°Ãû×ÖÒ»Ñù
Ö»ÄÜʹÓÃÇ¿ÀàÐ͵ÄREFÓαê
´´½¨³ÌÐò°ü¹æ·¶
create or replace package my_pack
is
procedure find_emp_proc(eno emp.empno%type);
function fin ......
OleDbConnectioncon=newOleDbConnection(cnnstr);
try
{
con.Open();
}
catch
{}
OleDbCommandcmd=newOleDbCommand(strSQL,con);
System.Data.OleDb.OleDbDataReaderdr=cmd.ExecuteReader();
while(dr.Read())
{
stringdd=dr["gggg"].ToString();
byte[]ooo=(byte[])dr["hhhh"];
stringstr;
str=Sys ......
¸ãoracle¶¼»á¾³£Åöµ½rowid£¬±¾ÎÄÊDZÊÕ߸ù¾ÝÍøÉϸ÷λµÄÎÄÕ£¬¼ÓÉÏ×Ô¼ºÑ§Ï°ÖеÄÌå»á£¬×ܽá¶ø³É¡£
Ò».rowid¼ò½é
rowid¾ÍÊÇΨһ±êÖ¾¼Ç¼ÎïÀíλÖõÄÒ»¸öid£¬ÔÚoracle 8°æ±¾ÒÔÇ°£¬rowidÓÉfile#+block#+row#×é³É£¬Õ¼ÓÃ6¸öbytesµÄ¿Õ¼ä£¬10 bit µÄ file# ......
SQLµÄÓÅ»¯Ó¦¸Ã´Ó5¸ö·½Ãæ½øÐе÷Õû£º
1.È¥µô²»±ØÒªµÄ´óÐͱíµÄÈ«±íɨÃè
2.»º´æСÐͱíµÄÈ«±íɨÃè
3.¼ìÑéÓÅ»¯Ë÷ÒýµÄʹÓÃ
4.¼ìÑéÓÅ»¯µÄÁ¬½Ó¼¼Êõ
5.¾¡¿ÉÄܼõÉÙÖ´Ðмƻ®µÄCost
SQLÓï¾ä£º
ÊǶÔÊý¾Ý¿â(Êý¾Ý)½øÐвÙ×÷µÄΩһ;¾¶£»
ÏûºÄÁË70%~90%µÄÊý¾Ý¿â×ÊÔ´£»¶ÀÁ¢ÓÚ³ÌÐòÉè¼ÆÂß¼£¬Ïà¶ÔÓÚ¶Ô³ÌÐòÔ´´úÂëµÄÓÅ»¯£¬¶ÔSQLÓï¾äµÄÓÅ»¯Ô ......