Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Oracleά»¤³£ÓÃSQLÓï¾ä»ã×Ü


¡¡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 SUB


Ïà¹ØÎĵµ£º

ORACLEÎﻯÊÓͼ ¶¨Î»µ¼ÖÂÎﻯÊÓͼÎÞ·¨¿ìËÙˢеÄÔ­Òò


ÎﻯÊÓͼµÄ¿ìËÙˢвÉÓÃÁËÔöÁ¿µÄ»úÖÆ£¬ÔÚË¢ÐÂʱ£¬Ö»Õë¶Ô»ù±íÉÏ·¢Éú±ä»¯µÄÊý¾Ý½øÐÐˢС£Òò´Ë¿ìËÙË¢ÐÂÊÇÎﻯÊÓͼˢз½Ê½µÄÊ×Ñ¡¡£
µ«ÊÇ¿ìËÙˢоßÓн϶àµÄÔ¼Êø£¬¶øÇÒ¶ÔÓÚ²ÉÓÃON COMMITģʽ½øÐпìËÙˢеÄÎﻯÊÓͼ¸üÊÇÈç´Ë¡£¶ÔÓÚ°üº¬¾Û¼¯ºÍ°üº¬Á¬½ÓµÄÎﻯÊÓͼµÄ¿ìËÙˢлúÖƲ¢²»Ïàͬ£¬¶øÇÒ¶ÔÓÚ¶à²ãǶÌ×µÄÎﻯÊÓͼµÄ¿ìËÙˢР......

linuxÏÂoracleÆô¶¯¹ý³Ì

ÔÚlinuxÏÂÆô¶¯oracle ºÍÔÚwindowsÊÇÓвî±ðµÄ£¬¶ÔÓÚÒ»°ãÔÚwindowsϲÙ×÷Ï°¹ßÈËÓкܶ಻ÊÊÓ¦£¬ËùÒÔÎÒÌرðдÕâÑùÎÄÕ£¬ÒÔ·½±ãÐÂÊÖ½øÐвÙ×÷£¬ÏÂÃæ¾ÍÒ»²½Ò»²½½²½âÆô¶¯¹ý³Ì¡£
1.ͨ¹ýÖÕ¶ËÁ¬½Óµ½linux·þÎñÆ÷,µ±È»ÕâÑùµÄÈí¼þºÜ¶àÀýÈçputty,SecureCRT,²¢ÒÔoracleÓû§½øÐеǼ£¬·ñÔòÆô¶¯oracleʱ»á´íµÄ£¬Ã»ÓÐȨÏÞÆô¶¯.(Ò²¿ÉÓû§root µ ......

ÁÙʱ±íÔÚSQL ServerºÍMySqlÖд´½¨µÄ·½·¨

SQL Server´´½¨ÁÙʱ±í£º
´´½¨ÁÙʱ±í
·½·¨Ò»£º
create table #ÁÙʱ±íÃû(×Ö¶Î1 Ô¼ÊøÌõ¼þ,
×Ö¶Î2 Ô¼ÊøÌõ¼þ,
.....)
create table ##ÁÙʱ±íÃû(×Ö¶Î1 Ô¼ÊøÌõ¼þ,
×Ö¶Î2 Ô¼ÊøÌõ¼þ,
.....)
·½·¨¶þ£º
select * into #ÁÙʱ±íÃû from ÄãµÄ±í;
select * into ##ÁÙʱ±íÃû from ÄãµÄ±í;
×¢£ºÒÔÉϵÄ#´ú±í¾Ö²¿ÁÙʱ±í£¬##´ú±íÈ«¾ ......

oracle ÓÅ»¯Ö® ÕÒ³öµÍЧÂÊsql Óï¾ä

SELECT EXECUTIONS , DISK_READS, BUFFER_GETS,
¡¡¡¡ROUND((BUFFER_GETS-DISK_READS)/BUFFER_GETS,2) Hit_radio,
¡¡¡¡ROUND(DISK_READS/EXECUTIONS,2) Reads_per_run,
¡¡¡¡SQL_TEXT
¡¡¡¡from V$SQLAREA
¡¡¡¡WHERE EXECUTIONS>0
¡¡¡¡AND BUFFER_GETS > 0
¡¡¡¡AND (BUFFER_GETS-DISK_READS)/BUFFER_GETS ......

¸ß¼¶ SQL 1

1 µ±Ê¹ÓÃgroup byʱ£¬Î´ÔÚgroup by ²¿·ÖÓõ½µÄ±íÁÐÔÚs e l e c t²¿·Ö³öÏÖʱ±ØÐëʹÓ÷Ö×麯Êý¡£
select last_name, state_cd, sum(sales) from customer group by last_name;
ERROR at line 1:
ORA-00979: not a GROUP BY expression.
state_cdÓ¦¸ÃʹÓ÷Ö×麯Êý£¬m a x ( )¡¢m i n ( )¡¢s u m ( )¡¢c o u n t ( )»òa v g ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ