Friends -- Why would these two queries return different results?
This query works. SQL> l 1 select a.tablespace_name,megs_allocated,megs_used,round(megs_used/b.megs_allocated, 2)*100 pct 2 from (select tablespace_name,sum(bytes)/(1024*1024) megs_used 3 from dba_extents group by tablespace_name) a, 4 (select tablespace_name,sum(bytes)/(1024*1024) megs_allocated 5 from dba_data_files group by tablespace_name) b 6 where a.tablespace_name=b.tablespace_name 7* and a.tablespace_name='NAUAT' SQL> / TABLESPACE_NAME MEGS_ALLOCATED MEGS_USED PCT ------------------------------ -------------- ---------- ---------- NAUAT 22924.25 11509 50 This query does not work 1 select a.tablespace_name,sum(b.bytes)/(1024*1024) megs_allocated, 2 sum(a.bytes)/(1024*1024) megs_used, 3 round(sum(a.bytes)/sum(b.bytes),4)*100 pct 4 from dba_extents a, dba_data_files b 5 where a.tablespace_name=b.tablespace_name 6 and a.tablespace_name='NAUAT' 7* group by a.tablespace_name,b.tablespace_name SQL> / TABLESPACE_NAME MEGS_ALLOCATED MEGS_USED PCT ------------------------------ -------------- ---------- ---------- NAUAT 31773010.5 23018 .07 Bambi. -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Bellow, Bambi INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
