Link fails on VMS Date column

[Kevin Erne]

Does the access on the SQL view work ?
If it does then that means there is a problem with the PH/Rdb data access
layer which uses BLR not SQL.
I take it that the key is used to enfore uniqueness on the table.?

Cheers

>-- Original Message --
>From: "Drewbrook, Neil EDUC:EX" <Neil.Drewbrook@gems3.gov.bc.ca>
>To: "'powerh-l@lists.sowder.com'" <powerh-l@lists.sowder.com>
>Subject: RE: Link fails on VMS Date column
>Date: Thu, 3 Mar 2005 16:01:45 -0800
>
>
>If Powerhouse is rounding VMS Date values before using them for indexed
>retrieval, then that's a pretty big flaw; but it's the only theory that
fits
>-- the link works using a new (non-unique) index, with:
>
>	> define d_date_only num*8 = dateextract( R_DATE of TABLE_1, date )
>	> define d_time_only num*8 = dateextract( R_DATE of TABLE_1, time )
>	> select A2     &
>	>   if d_date_only = dateextract( R_DATE of A2, date)    &
>	>  and d_time_only = dateextract( R_DATE of A2, time )
>
>Does anyone from Cognos have any insight into what's happening here?
>
>> -----Original Message-----
>> From: Kevin Erne [mailto:kevin.erne@lineone.net]
>> Sent: February 28, 2005 2:15 PM
>> To: Drewbrook, Neil EDUC:EX; 'powerh-l@lists.sowder.com'
>> Subject: RE: Link fails on VMS Date column
>>
>>
>> If you create a view in the db on the self join  and access
>> it via quiz it
>> shoudl return the right no of records.
>> My guess is that some sort of rounding may be happening
>> between the Powerhouse
>> data access layer and
>> Rdb. Date VMS is a 64 bit timestamp (no of seconds since
>> 117th Nov 1858??)
>> so it could easily get corrupted.
>>
>> >-- Original Message --
>> >From: "Drewbrook, Neil EDUC:EX" <Neil.Drewbrook@gems3.gov.bc.ca>
>> >To: "'powerh-l@lists.sowder.com'" <powerh-l@lists.sowder.com>
>> >Subject: Link fails on VMS Date column
>> >Date: Fri, 25 Feb 2005 14:35:56 -0800
>> >
>> >
>> >This issue is specific to OracleRdb on VMS.
>> >
>> >I'm trying to link to a table using an index, but the link
>> fails when a
>> >matching record does exist.  In the example below, the link
>> should succeed
>> >for every record; each row should join to itself.  It also
>> fails in Quick
>> >
>> >R_DATE is Date VMS; it is the first column in an index.
>> >I've dropped and re-created the index.
>> >Joining the table to itself using SQL works correctly.
>> >Other tables with indexes on Date VMS columns link to
>> themselves correctly
>> >using quiz.
>> >
>> >> access TABLE_1
>> >> go
>> >
>> >Records selected: 24623
>> >
>> >> acc TABLE_1  link R_DATE  to R_DATE  of TABLE_1 alias a1
>> >> go
>> >
>> >Records selected: 8
>> >
>> >
>> >Any ideas?
>> >= = = = = = = = = = = = = = = = = = = = = = = = = = = =
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>>
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