Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
![]() |
![]() |
Home -> Community -> Usenet -> c.d.o.misc -> Re: Simple Oracle Query Taking Too Long
One can always come up with hypothetical explanations ...
Something like, the table had a very small extent size, the extents are
scaterred all over the disk drive, and the first million extents are
all empty, and ...
Something that worries me though is you meaningless delete statement
...
"deleting * from abc where rownum <= 1000"
You realize that this would delete "any" 1000 rows - and that these
rows may not be related to the other 1000 rows you accessed in your
previous insert as select statement.
2cents Received on Wed Sep 06 2006 - 15:17:46 CDT
![]() |
![]() |