Hi there, been looking for a solution to this for some time now. I've
a UNION query that produces a table called AllSecurities:
SELECT SecurityNumber, Book AS AllSecurities FROM Trades UNION
SELECT SecurityNumber, Book from Positions;
I'd really like to show is all the fields from the Positions table,
but these don't exist in the Trades table, so they can't be included
in the UNION (as far as I know). Is it possible to link this to a:
SELECT Positions.* FROM Position;
by joining the 1st query to the 2nd by the use of:
LEFT JOIN Positions ON (AllSecurities. Book = Positions.Book) AND
(AllSecurities. SecurityNumber = Positions.Secur ityNumber);
Thanks in advance for any advice given.
Andy. 2 2934
If you really need to, you can pad the select of Trades with dummy fields
(either Nulls, or "" for the text fields and 0 for the numeric ones):
SELECT SecurityNumber, Book, ATextField, ANumericField, AnotherTextFiel d
FROM Positions
UNION
SELECT SecurityNumber, Book, NULL AS ATextField, NULL AS ANumericField, NULL
AS AnotherTextFiel d FROM Positions
or
SELECT SecurityNumber, Book, ATextField, ANumericField, AnotherTextFiel d
FROM Positions
UNION
SELECT SecurityNumber, Book, "" AS ATextField, 0 AS ANumericField, "" AS
AnotherTextFiel d FROM Positions
--
Doug Steele, Microsoft Access MVP http://I.Am/DougSteele
(No private e-mails, please)
"Shaggy Dragon" <Sh***********@ his.cave> wrote in message
news:b5******** *************** *********@4ax.c om... Hi there, been looking for a solution to this for some time now. I've a UNION query that produces a table called AllSecurities:
SELECT SecurityNumber, Book AS AllSecurities FROM Trades UNION SELECT SecurityNumber, Book from Positions;
I'd really like to show is all the fields from the Positions table, but these don't exist in the Trades table, so they can't be included in the UNION (as far as I know). Is it possible to link this to a:
SELECT Positions.* FROM Position;
by joining the 1st query to the 2nd by the use of:
LEFT JOIN Positions ON (AllSecurities. Book = Positions.Book) AND (AllSecurities. SecurityNumber = Positions.Secur ityNumber);
Thanks in advance for any advice given.
Andy.
On Sun, 16 Nov 2003 23:23:29 GMT, "Douglas J. Steele"
<NOSPAM_djsteel e@NOSPAM_canada .com> wrote: If you really need to, you can pad the select of Trades with dummy fields (either Nulls, or "" for the text fields and 0 for the numeric ones):
SELECT SecurityNumber, Book, ATextField, ANumericField, AnotherTextFiel d FROM Positions UNION SELECT SecurityNumber, Book, NULL AS ATextField, NULL AS ANumericField, NULL AS AnotherTextFiel d FROM Positions
or
SELECT SecurityNumber, Book, ATextField, ANumericField, AnotherTextFiel d FROM Positions UNION SELECT SecurityNumber, Book, "" AS ATextField, 0 AS ANumericField, "" AS AnotherTextFie ld FROM Positions
Thanks for the suggestion, but there seems to be a problem:
SELECT SecurityNumber, Book FROM Positions UNION SELECT
SecurityNumber, Book FROM Trades
returns 676 records whilst:
SELECT SecurityNumber, Book, SecurityDescrip tion FROM Positions UNION
SELECT SecurityNumber, Book, NULL As SecurityDescrip tion FROM Trades
Returns 928 records. There are a lot of duplicates present in the
table. I replaced NULL with "" with exactly the same result. Nearly
there, any other ideas I can try?
Thanks,
Andy. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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