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Archives of the TeradataForum
Message Posted: Tue, 13 Jul 2004 @ 14:36:32 GMT
Subj: | | FieldTitle in DBC.TVFields |
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From: | | Rob Paller |
Where does HELP COLUMN extract the FieldTitle column from for a view when TVFields.FieldTitle is NULL? Is this a case where the database goes
to the table header or row header to get the information and not the dictionary?
I have placed some test SQL that should help explain what I am seeing. This is occurring on RELEASE V2R.05.00.00.11, VERSION 05.00.00.11 and
RELEASE V2R05.00.02.09, VERSION 05.00.02.12.
CREATE SET TABLE TEST.TITLE_TEST, NO FALLBACK,
NO BEFORE JOURNAL,
NO AFTER JOURNAL
( FIELD1 INTEGER NOT NULL TITLE 'TVFIELDS DISPLAYED' )
UNIQUE PRIMARY INDEX PIDX (FIELD1);
REPLACE VIEW TEST.TITLE_SAMPLE AS
SEL FIELD1 (TITLE 'NOT IN TVFIELDS.FIELDTITLE')
FROM TEST.TITLE_TEST;
HELP COLUMN TEST.TITLE_SAMPLE.FIELD1;
HELP COLUMN TEST.TITLE_TEST.FIELD1;
SEL T.TVMNAME
, T.TABLEKIND
, C.*
FROM DBC.TVM T
,dbc.TVFields C
WHERE T.DATABASEID = C.DATABASEID
AND T.TVMID = C.TABLEID
AND T.TVMNAME IN ('TITLE_SAMPLE', 'TITLE_TEST')
ORDER BY 1,C.FIELDID
;
--
Rob Paller
Teradata Certified Master
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