HI,
I have an performance questions...
is # of tables in one tablespaces matter for performance point of view?
why?
if yes, how many tables in one tablespace is good ?
Thanks for any suggestions?
3  1479 
"jane" <es**********@y ahoo.com> wrote in message
news:11******** *************@g 49g2000cwa.goog legroups.com... HI,
I have an performance questions...
is # of tables in one tablespaces matter for performance point of view?
why?
if yes, how many tables in one tablespace is good ?
Thanks for any suggestions?
There is a big difference on this subject when comparing DB2 for z/OS and
DB2 for Linux, UNIX, and Windows. On the later, it does not matter and is
basically a matter of administrative ease.
Mark A wrote: "jane" <es**********@y ahoo.com> wrote in message
news:11******** *************@g 49g2000cwa.goog legroups.com...
HI,
I have an performance questions...
is # of tables in one tablespaces matter for performance point of view?
why?
if yes, how many tables in one tablespace is good ?
Thanks for any suggestions?
There is a big difference on this subject when comparing DB2 for z/OS and
DB2 for Linux, UNIX, and Windows. On the later, it does not matter and is
basically a matter of administrative ease.
I usually put small tables together in SMS tablespaces.
Large and heavily used tables I put in separate tablespaces.
One disadvantage of having multiple tables in a tablespace is that if
for some reason the tablespace goes offline, during LOAD for instance,
tables in that tablespace are not available.
--
Anton Versteeg
IBM Netherlands
Thanks all for the info.
My case is I already have 200 tables in one tablespace, I need to
create another 70 tables, they are fact tables.. So I'm considering if
I need to create a separate tablespace or put in the exiting one...
My environment is UDB on AIX.
I'm more concern about read/write performance impact?
Is there any I/O impact about this?
( from OS point of view)?
any suggestion is appreciated.
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