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On 3/16/2011 1:27 PM, rob@xxxxxxxxx wrote:
Joe,

True on the ORDER BY limit in a view, but you might want to take a look at
the enhancements done to CREATE INDEX.
CREATE INDEX, with the RCDFMT clause and the WHERE clause is a beautiful
thing. I believe that the index fields and the fields added in the RCDFMT
clause can be UDF's.
http://publib.boulder.ibm.com/infocenter/iseries/v7r1m0/topic/db2/rbafzxcindx.htm


Rob Berendt

Yeah, I've been reading about that. It has its limitations as well; as far as I can tell you're stuck with the layout of the underlying table. One of the primary benefits of the view is to select and omit columns, and the INDEX ... WHERE doesn't give you that. Logical files still do the combined sort, select and reformat better than any one tool in the SQL toolkit.

One other thing - you can't do SQL on a DDM file. There are circumstances where getting at a table on another i is required. With RLA, it's CRTDDMF and I'm done. With SQL, it's impossible. (Yes, it can be done with ODBC/JDBC, but not with standard SQL.)

Joe

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