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

Oracle ³£ÓÃSQL


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·½Ê½
Select Created, Log_Mode, Log_Mode from V$Database;
10¡¢²¶×½ÔËÐкܾõÄSQL
column username format a12
column opname format a16
column progress format a8
select username,sid,opname,
round(sofar*100 / totalwork,0) || '%' as progress,
time_remaining,sql_text
from v$session_longops , v$sql
where time_remaining <> 0
and sql_address = address
and sql_hash_value = hash_value
/
11¡£²é¿´Êý¾Ý±íµÄ²ÎÊýÐÅÏ¢
SELECT partition_name, high_value, high_value_length, tablespace_name,
pct_free, pct_used, ini_trans, max_trans, initial_extent,
next_extent, min_extent, max_


Ïà¹ØÎĵµ£º

ORACLE ÔÚWHERE×Ó¾äÖÐÒýÓÃÁбðÃûµÄÎÊÌâ

SQL> select sal,comm from emp
2 where sal<2000;
SAL COMM
---------- ----------
800
1600 300
1250 500
1250 1400
1500 0
1100
950
1300
8 rows selected.
SQL> select sal as salary,comm as ......

Oracle ÈÕÆÚ/ʱ¼äµÄÏà¹Ø²Ù×÷

¡¡¡¡±¾ÎĽéÉÜÁËÔÚOracleÊý¾Ý¿âÖУ¬¶ÔÈÕÆÚ¡¢Ê±¼äµÄ¸÷ÖÖ²Ù×÷£¬°üÀ¨£ºÈÕÆÚʱ¼ä¼ä¸ô²Ù×÷¡¢ÈÕÆÚµ½×Ö·û²Ù×÷¡¢×Ö·ûµ½ÈÕÆÚ²Ù×÷¡¢trunk / ROUNDº¯ÊýµÄʹÓᢺÁÃë¼¶µÄÊý¾ÝÀàÐ͵ȡ£
1.ÈÕÆÚʱ¼ä¼ä¸ô²Ù×÷
¡¡¡¡µ±Ç°Ê±¼ä¼õÈ¥7·ÖÖÓµÄʱ¼ä
¡¡¡¡select sysdate,sysdate - interval '7' MINUTE from dual
¡¡¡¡µ±Ç°Ê±¼ä¼õÈ¥7СʱµÄʱ¼ä
¡¡¡ ......

asp¡¢delphi¡¢oracleµÄ¼¼ÊõÎĵµ×ܽá

1) DelphiÏòoracleÖд«µÝ²ÎÊý ÈçoracleÖеIJÎÊýÃûΪerpcx 
´ð£ºÈç¹ûÏë´Ó±íÀïȡֵµ½oracle£¬Ôòerpcx:=trim(aq1.fieldbyname('erpcx').AsString);
·ñÔòÖ±½ÓÓÿؼþÃû×Ö
Óï¾äΪ
with aperp do    
begin
connection:=dm.ADOCerp;      
parameters.Clear;&nbs ......

linuxϰ²×°oracle10xe°æ

radhat 5.2ϰ²×°oracle10g
1¡¢ÏµÍ³ÐèÇó£º
Äڴ棺ÖÁÉÙ512mb£¬ÍƼöÓÃ1g£»
Ó²ÅÌ£º·þÎñÆ÷ÖÁÉÙ60g£»
£¨Ò»°ãÇé¿öÏÂÓ²¼þ¶¼ÄÜ·ûºÏÒªÇó£©
Èí¼þ°ü£ºglibc-2.3.2, libaio-0.3.96
½»»»¿Õ¼ä:
RAM: 0~256MB,   SWAP: 3 ±¶ RAM ´óС
RAM: 256~512MB,  SWAP: 2 ±¶ RAM ´óС
RAM: >=512MB,   SWAP: 10 ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ