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  3. October 2004

Re: SQL and ALTSEQ

ALTSEQ is ignored, IIRC, and as you've found. To get similar function, take a look at the sort sequence setting in interactive SQL (F13, option 1). Also, I think there is a language ID.

HTH
Vern

At 05:36 AM 10/14/2004, you wrote: 
Is there a way to make SQL respect the DDS ALTSEQ keyword?

For example, given a table 'TESTFILE' with the following DDS definition:

A                                          ALTSEQ(QASCII)

A              R RECORD

A                FIELD          4A

A              K FIELD


If I put 3 records into the file, with the values for 'FIELD' of '0001'
'0002' and '000A', the collating sequence specified should index the records
in the following order:

0001
0002
000A

In RPG a *HIVAL SETGT followed by a READP correctly returns 000A as being
the last record.

However when attempting access the table with SQL, the ALTSEQ keyword isn't
being respected.

SELECT MAX(FIELD) FROM TESTFILE

Results in:

MAX ( FIELD )
    0002

SELECT FIELD FROM TESTFILE ORDER BY FIELD

Results in:

FIELD
000A
0001
0002

Looking at the DB2 manuals it seems that DB2 looks for a collating sequence
specified at database level - not at file level and so is not respecting my
ALTSEQ keyword - can I force it to?

Thanks in advance,
Stu

Stuart Bramley
Senior Technical Developer
Skandia Life::GroupIT
Southampton
t: 023 80 72 64 29 e: stu.bramley@xxxxxxxxxxxxx
IBM Certified Specialist
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