OracleɱµôËÀËø½ø³Ì
ÓÃOracle Sql Developer²Ù×÷±íµÄʱºò£¬²»ÖªÕ¦µÄ°Ñ±íËø×¡ÁË¡£
½á¹ûÄÇÕűíÒ»²åÊý¾Ý¾ÍËÀ£¬Á¬truncate¶¼²»ÐС£
´ÓÍøÉÏÆßÆ´°Ë´ÕÁ˸ö·½·¨£¬ÖÕÓڰѽø³ÌɱÁË£¬±íÒ²¾Í½âËøÁË¡£
Ê×ÏÈÒªÓÃdba¼¶±ðµÄÓû§²Ù×÷£¬ÒòΪҪ²ì¿´ºÜ¶àϵͳ±í¡£ÓÃÆÕͨÓû§²Ù×÷µÄ»°£¬»áÌáʾ±í»òÕßView²»´æÔÚ¡££¨ÎªÊ²Ã´²»ÌáʾȨÏÞ²»¹»£¿º¦ÎÒ×ÜÒÔΪÊǰ汾ÎÊÌ⣩
È»ºóÕÒËø±íµÄsid(session id)£¬SERIAL#£¬PADDR
SELECT * from V$SESSION where osuser='XXXXXX'; --osuserÊǵǽwindowsÃû
ÕÒspid
SELECT SPID from V$PROCESS WHERE ADDR='¸Õ²Å²éµ½µÄPADDR';
×îºó. ɱ½ø³Ì
(1).ÏÈɱORACLE½ø³Ì:
ALTER SYSTEM KILL SESSION '²é³öµÄSID,²é³öµÄSERIAL#';
(2).ÔÙɱ²Ù×÷ϵͳ½ø³Ì:KILL -9 ¸Õ²Å²é³öµÄSPID»ò
ORAKILL ¸Õ²Å²é³öµÄSID ¸Õ²Å²é³öµÄSPID
ÌáʾÕÒ²»µ½spid¡£¡£¡£²»¹ÜÁË£¬È¥¿´¿´Ëø×¡µÄ±í¡£ÄܲåÊý¾ÝÁË£¬½â¾ö¡£
Ïà¹ØÎĵµ£º
SQLµÄÓÅ»¯Ó¦¸Ã´Ó5¸ö·½Ãæ½øÐе÷Õû£º
1.È¥µô²»±ØÒªµÄ´óÐͱíµÄÈ«±íɨÃè
2.»º´æÐ¡ÐͱíµÄÈ«±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» ......
SQLµÄÓÅ»¯Ó¦¸Ã´Ó5¸ö·½Ãæ½øÐе÷Õû£º
1.È¥µô²»±ØÒªµÄ´óÐͱíµÄÈ«±íɨÃè
2.»º´æÐ¡ÐͱíµÄÈ«±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 ......
Á·Ï°ÁËORACLEÀàËÆµÄ·ÖÒ³,Ä¿µÄ:ORACLEµÄLIMITʹÓÃ
declare
type name_arrary_type is varray(20) of varchar2(10);
name_arrary name_arrary_type;
rowss int:=&ÊäÈëÒ³¼Ç¼Êý;
dpno int:=&ÊäÈ벿ÃźÅ;
v_count int:=0;
cursor emp_cursor(dpno int) is select ename from emp where deptno=dpno; ......
ÔÚʵ¼Ê¿ª·¢ÖУ¬¾³£»áÐèÒª¶ÔÊý¾Ý¿â½øÐзÃÎÊ£¬×î³£¼ûµÄ¿ª·¢·½·¨¾ÍÀàËÆ£º
¡¡¡¡string sql = "select * from table1 where name = '" + name + "'";
¡¡¡¡ÕâÖÖ·½Ê½Óб»×¢Èë¹¥»÷µÄΣÏÕ
¡¡¡¡ËùÒÔ½â¾ö·½°¸ÓÐ2ÖÖ£º
¡¡¡¡1¡¢¸Ä³É£ºstring sql = "select * from table1 where name = '" + name.Replace("'","''") + "'"; // Ìæ»»Ò» ......