RE: SQL Triggers and Multiple Member Database Files

["Wilt, Charles" <CWilt@xxxxxxxxxxxx>]

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Reinardy, James
> Sent: Tuesday, April 05, 2005 12:25 PM
> To: Midrange Systems Technical Discussion
> Subject: RE: SQL Triggers and Multiple Member Database Files
> 
> 
> Charles,
> 
> Thanks for replying. I do have to disagree to a point about 
> one of your
> statements.
> 
> "Which would make sense since SQL doesn't have any concept of multiple
> members."

Feel free to disagree, but here's the quote from the Modernizing IBM eServer 
iSeries Application Data Access, "For example, SQL does not support the concept 
of multi-member files."

While the ALIAS command does know about members and ALIAS an ALIAS can be used 
to allow the other SQL commands access to a particular member, I think it's 
fair to say that SQL doesn't have any concept of multiple members.  Certainly 
the RDBMS itself does, but SQL does not.


Interesting, in v5r3....IBM has added support for partitioned tables.  How are 
these supported?  Via multi member physical files!

http://publib.boulder.ibm.com/infocenter/iseries/v5r3/ic2924/index.htm?info/dbmult/partitionedtables.htm

But SQL accesses the data as if it was all in the same member.

HTH,

Charles Wilt
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121