Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Oracleά»¤³£ÓÃSQLÓï¾ä»ã×Ü

Oracleά»¤³£ÓÃSQLÓï¾ä»ã×Ü
ÉÏһƪ / ÏÂһƪ  2008-09-04 11:25:01
²é¿´( 1991 ) / ÆÀÂÛ( 0 ) / ÆÀ·Ö( 0 / 0 )
ÈçºÎÔ¶³ÌÅжÏOracleÊý¾Ý¿âµÄ°²×°Æ½Ì¨
select * from v$version;
²é¿´±í¿Õ¼äµÄʹÓÃÇé¿ö
select sum(bytes)/(1024*1024) as free_space,tablespace_name
from dba_free_space
group by tablespace_name;
SELECT A.TABLESPACE_NAME,A.BYTES TOTAL,B.BYTES USED, C.BYTES FREE,
(B.BYTES*100)/A.BYTES "% USED",(C.BYTES*100)/A.BYTES "% FREE"
from SYS.SM$TS_AVAIL A,SYS.SM$TS_USED B,SYS.SM$TS_FREE C
WHERE A.TABLESPACE_NAME=B.TABLESPACE_NAME AND A.TABLESPACE_NAME=C.TABLESPACE_NAME;
1¡¢²é¿´±í¿Õ¼äµÄÃû³Æ¼°´óС
select t.tablespace_name, round(sum(bytes/(1024*1024)),0) ts_size
from dba_tablespaces t, dba_data_files d
where t.tablespace_name = d.tablespace_name
group by t.tablespace_name;
2¡¢²é¿´±í¿Õ¼äÎïÀíÎļþµÄÃû³Æ¼°´óС
select tablespace_name, file_id, file_name,
round(bytes/(1024*1024),0) total_space
from dba_data_files
order by tablespace_name;
3¡¢²é¿´»Ø¹ö¶ÎÃû³Æ¼°´óС
select segment_name, tablespace_name, r.status,
(initial_extent/1024) InitialExtent,(next_extent/1024) NextExtent,
max_extents, v.curext CurExtent
from dba_rollback_segs r, v$rollstat v
Where r.segment_id = v.usn(+)
order by segment_name ;
4¡¢²é¿´¿ØÖÆÎļþ
select name from v$controlfile;
5¡¢²é¿´ÈÕÖ¾Îļþ
select member from v$logfile;
6¡¢²é¿´±í¿Õ¼äµÄʹÓÃÇé¿ö
select sum(bytes)/(1024*1024) as free_space,tablespace_name
from dba_free_space
group by tablespace_name;
SELECT A.TABLESPACE_NAME,A.BYTES TOTAL,B.BYTES USED, C.BYTES FREE,
(B.BYTES*100)/A.BYTES "% USED",(C.BYTES*100)/A.BYTES "% FREE"
from SYS.SM$TS_AVAIL A,SYS.SM$TS_USED B,SYS.SM$TS_FREE C
WHERE A.TABLESPACE_NAME=B.TABLESPACE_NAME AND A.TABLESPACE_NAME=C.TABLESPACE_NAME;
7¡¢²é¿´Êý¾Ý¿â¿â¶ÔÏó
select owner, object_type, status, count(*) count# from all_objects group by owner, object_type, status;
8¡¢²é¿´Êý¾Ý¿âµÄ°æ±¾¡¡
Select version from Product_component_version
Where SUBSTR(PRODUCT,1,6)='Oracle';
9¡¢²é¿´Êý¾Ý¿âµÄ´´½¨ÈÕÆÚºÍ¹éµµ·½Ê


Ïà¹ØÎĵµ£º

ORACLEº¯Êý´óÈ«

 
SQLÖеĵ¥¼Ç¼º¯Êý
1.ASCII
·µ»ØÓëÖ¸¶¨µÄ×Ö·û¶ÔÓ¦µÄÊ®½øÖÆÊý;
SQL> select ascii('A') A,ascii('a') a,ascii('0') zero,ascii(' ') space from dual;
        A         A      ZERO  &nbs ......

ORACLE ÖÐROWNUMÓ÷¨×ܽá

  ¶ÔÓÚ Oracle µÄ rownum ÎÊÌ⣬ºÜ¶à×ÊÁ϶¼Ëµ²»Ö§³Ö>,>=,=,between...and£¬Ö»ÄÜÓÃÒÔÉÏ·ûºÅ(<¡¢<=¡¢!=)£¬²¢·Ç˵ÓÃ>,>=,=,between..and ʱ»áÌáʾSQLÓï·¨´íÎ󣬶øÊǾ­³£ÊDz鲻³öÒ»Ìõ¼Ç¼À´£¬»¹»á³öÏÖËÆºõÊÇĪÃûÆäÃîµÄ½á¹ûÀ´£¬ÆäʵÄúÖ»ÒªÀí½âºÃÁËÕâ¸ö rownum αÁеÄÒâÒå¾Í²»Ó¦¸Ã¸Ðµ½¾ªÆæ£¬Í¬ÑùÊÇαÁУ¬r ......

OracleÊý¾Ý¿â·ÖÇø±í²Ù×÷·½·¨

ÔÚ´óÐÍµÄÆóÒµÓ¦ÓûòÆóÒµ¼¶µÄÊý¾Ý¿âÓ¦ÓÃÖУ¬Òª´¦ÀíµÄÊý¾ÝÁ¿Í¨³£¿ÉÒÔ´ïµ½¼¸Ê®µ½¼¸°ÙGB£¬ÓеÄÉõÖÁ¿ÉÒÔµ½TB¼¶¡£ËäÈ»´æ´¢½éÖʺÍÊý¾Ý´¦Àí¼¼ÊõµÄ·¢Õ¹Ò²ºÜ¿ì£¬µ«ÊÇÈÔÈ»²»ÄÜÂú×ãÓû§µÄÐèÇó£¬ÎªÁËʹÓû§µÄ´óÁ¿µÄÊý¾ÝÔÚ¶Áд²Ù×÷ºÍ²éѯÖÐËٶȸü¿ì£¬OracleÌṩÁ˶ԱíºÍË÷Òý½øÐзÖÇøµÄ¼¼Êõ£¬ÒÔ¸ÄÉÆ´óÐÍÓ¦ÓÃϵͳµÄÐÔÄÜ¡£
ʹÓ÷ÖÇøµÄÓŵ㣠......

SQL*Plus FAQ

 What is SQL*Plus and where does it come from?
SQL*Plus is a command line SQL and PL/SQL language interface and reporting tool that ships with the Oracle Database Client and Server software. It can be used interactively or driven from scripts. SQL*Plus is frequently used by DBAs and Developers ......

SQL SERVERÖÐÈ«ÎļìË÷µÄ´´½¨ÓëÓ¦ÓÃ

      È«ÎÄËÑË÷µÄºËÐÄÒýÇæ½¨Á¢ÔÚMicrosoft Full-Text Engine for SQL Server (MSFTESQL) ·þÎñÌṩ֧³Ö
      Ãæ¶Ôº£Á¿µÄÊý¾Ý£¬ÈçºÎ²ÅÄÜÕÒµ½ÎÒÐèÒªµÄ£¿¶ÔÊý°ÙÍòÐÐÎı¾Êý¾ÝÖ´ÐеÄLIKE ²éѯ¿ÉÄÜÐèÒª»¨·Ñ¼¸·ÖÖÓʱ¼ä²ÅÄÜ·µ»Ø½á¹û£»µ«¶ÔͬÑùµÄÊý¾Ý£¬È«ÎIJéѯֻÐèÒª¼¸Ãë»ò¸üÉÙ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ