oracle ±í¿Õ¼ä²Ù×÷Ïê½â
1
2
3
×÷Õߣº À´Ô´£º ¸üÐÂÈÕÆÚ£º2006-01-04
5
6
7
½¨Á¢±í¿Õ¼ä
8
9
CREATE TABLESPACE data01
10
DATAFILE '/oracle/oradata/db/DATA01.dbf' SIZE 500M
11
UNIFORM SIZE 128k; #Ö¸¶¨Çø³ß´çΪ128k,Èç²»Ö¸¶¨£¬Çø³ß´çĬÈÏΪ64k
12
13
ɾ³ý±í¿Õ¼ä
14
15
DROP TABLESPACE data01 INCLUDING CONTENTS AND DATAFILES;
16
17
Ð޸ıí¿Õ¼ä´óС
alter database datafile '/path/NADDate05.dbf' resize 100M
ÒÆ¶¯±íÖÁÁíÒ»±í¿Õ¼ä
alter table move tablespace room1;
18
Ò»¡¢½¨Á¢±í¿Õ¼ä
19
20
CREATE TABLESPACE data01
21
DATAFILE '/oracle/oradata/db/DATA01.dbf' SIZE 500M
22
UNIFORM SIZE 128k; #Ö¸¶¨Çø³ß´çΪ128k,Èç²»Ö¸¶¨£¬Çø³ß´çĬÈÏΪ64k
23
24
¶þ¡¢½¨Á¢UNDO±í¿Õ¼ä
25
26
CREATE UNDO TABLESPACE UNDOTBS02
27
DATAFILE '/oracle/oradata/db/UNDOTBS02.dbf' SIZE 50M
28
29
#×¢Ò⣺ÔÚOPEN״̬ÏÂijЩʱ¿ÌÖ»ÄÜÓÃÒ»¸öUNDO±í¿Õ¼ä£¬Èç¹ûÒªÓÃн¨µÄ±í¿Õ¼ä£¬±ØÐë
Çл»µ½¸Ã±í¿Õ¼ä:
30
31
ALTER SYSTEM SET undo_tablespace=UNDOTBS02;
32
33
Èý¡¢½¨Á¢ÁÙʱ±í¿Õ¼ä
34
35
CREATE TEMPORARY TABLESPACE temp_data
36
TEMPFILE '/oracle/oradata/db/TEMP_DATA.dbf' SIZE 50M
37
38
ËÄ¡¢¸Ä±ä±í¿Õ¼ä״̬
39
40
1.ʹ±í¿Õ¼äÍÑ»ú
41
42
ALTER
Ïà¹ØÎĵµ£º
¼×¹ÇÎÄÒѾÍê³ÉÁ˶ÔSUN¹«Ë¾µÄÊÕ¹º£¬ÓÚ1ÔÂ27ÈÕ·¢²¼Á˶ÔSun¸÷ÏîÒµÎñµÄÕûºÏ¹æ»®¡£×ÜÌåÉÏ˵£¬OracleÒª³ÉΪÈíÓ²¼þÒ»Ì廯µÄÕûÌå½â¾ö·½°¸µÄ³§ÉÌ¡£ ÒÔÏÂ¾ÍÆä¶Ô±¸ÊܹØ×¢µÄJava·½ÃæµÄ²ßÂÔ×ö¸ö½éÉÜ¡£
Java SE:
1£©ÍƳöJDK SE 7£¬ Ëü½«°üÀ¨¶à¸öÐµĹ¦ÄÜ£¬ÈçÌá¸ß¿ª·¢ÈËÔ±µÄЧÂÊ£¬Ìṩ¸ßÐÔÄÜ£¬¶Ô¶àºËоƬµÄÖ§³ÖµÈ¡£
2£©SunµÄHotSpot ......
Ò»¡£²é¿´oracleÊý¾Ý¿âÊÇ·ñΪ¹éµµÄ£Ê½£º
1.select name,log_mode from v$database;
NAME LOG_MODE
------------------ ------------------------
QUERY NOARCHIVELO ......
HA
ÊÇHigh Availability
µÄÊ××Öĸ×éºÏ£¬·Òë¹ýÀ´£¬¿ÉÒÔ½Ð×ö¸ß¿ÉÓ㬻ò¸ß¿ÉÓÃÐÔ£¬¸ß¿ÉÓ㨻·¾³£©¡£ÎÒ¾õµÃÓ¦¸Ã˵HAÊÇÒ»¸ö¹ÛÄî¶ø²»ÊÇÒ»Ïî»òһϵÁоßÌå¼¼Êõ£¬¾ÍÏóÍø¸ñÒ»Ñù¡£×÷¹ýϵͳ
·½°¸¾ÍÖªµÀÁË£¬ÆÀ¼ÛϵͳµÄÐÔÄܵ±ÖоÍÓÐÒ»Ïî¸ß¿ÉÓ᣹ãÒåµÄ¸ß¿ÉÓÃÉæ¼°µ½ÏµÍ³µÄ¸÷¸ö·½Ã棬¼òµ¥À´Ëµ£¬ÈÃϵͳ²»»áÖжÏ
ÔËÐУ¬¾ÍÊǸ߿ÉÓᣰüÀ¨È ......
´Ó8iµ½10g£¬Oracle²»¶Ï½ø»¯×Ô¼ºµÄSQL TuningÖÇÄÜ£¬Ò»Ð©Ãؼ®¼¶µÄÓÅ»¯¿Ú¾÷ÒѾʧЧ¡£
µ«ÎÒϲ»¶Ê§Ð§£¬²»Óüǿھ÷£¬²Ù¸öToad for Oracle Xpert
£¬°´ÕÕ´ó·½ÏòÊæÊæ·þ·þµÄ
µ÷ÓŲÅÊǰ®×öµÄÊÂÇé¡£
1.Excution Plan
Excution
PlanÊÇ×î»ù±¾µÄµ÷ÓŸÅÄ²»¹ÜÄãµÄµ÷ÓÅ´µµÃÈçºÎÌ ......
OracleÌṩµÄÐòºÅº¯Êý:
ÒÔemp±íΪÀý:
1: rownum ×î¼òµ¥µÄÐòºÅ µ«ÊÇÔÚorder by֮ǰ¾ÍÈ·¶¨Öµ.
select rownum,t.* from emp t order by ename
ÐÐÊý
ROWNUM
EMPNO
ENAME
JOB
MGR
HIREDATE
SAL
COMM
DEPTNO
1
11
7876
ADAMS
CLERK
7788
1987-5-23
1100
¡¡
20
2
2
7499
ALLEN
SALESMAN
7698
......