dprovencher
asked on
Output grid-like table from many unlinked tables
Hi, I've been searching and thinking of a way to do this all day yesterday and I'm about to give up and do it in C#. But before I do I'd really like to know if anyone can think of a way to do this in SQL. What I want to do is make a query that returns rows based on other tables. That's not clear, let's say I've got the following tables:
tbl1
a b c
d e f
g h i
tbl2
1 2 3
4 5 6
7 8 9
0 1 2
What I want is to get something like this:
a b c 1 2 3
d e f 4 5 6
g h i 7 8 9
NULL NULL NULL 0 1 2
I don't want to use the CREATE TABLE by the way, I hate the idea of temp tables, they should never be used :)
Thanks for any input!
I use SQL Server 2000.
tbl1
a b c
d e f
g h i
tbl2
1 2 3
4 5 6
7 8 9
0 1 2
What I want is to get something like this:
a b c 1 2 3
d e f 4 5 6
g h i 7 8 9
NULL NULL NULL 0 1 2
I don't want to use the CREATE TABLE by the way, I hate the idea of temp tables, they should never be used :)
Thanks for any input!
I use SQL Server 2000.
Last Comment
ASKER
There is no common key in either table, the resulting records will be used in an horizontal report, that's why I need this. Thanks for the reply :)
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ASKER
Damn thanks! All I was missing was the ORDER BY COALESCE(#t1.ID, #t2.ID) all my records were mixed up :D
I'll post my solution without temp tables and give you the points.
I'll post my solution without temp tables and give you the points.
ASKER
Here's my code, first a UDF for each table (don't know how else to do this):
CREATE FUNCTION fct_tbl_cie_identity ()
RETURNS @Table TABLE (NoCompagnie NVARCHAR(1024), Nom NVARCHAR(1024), RowIndex INT IDENTITY) AS
BEGIN
INSERT INTO @Table
SELECT NoCompagnie, Nom FROM tbl_cie
RETURN
END
And the actual query:
SELECT *
FROM
fct_tbl_cie_identity() cie FULL OUTER JOIN
fct_tbl_contrat_identity()
fct_tbl_chantier_identity(
fct_tbl_activite_identity(
ORDER BY COALESCE(cie.RowIndex, contrat.RowIndex, chantier.RowIndex, activite.RowIndex)
CREATE FUNCTION fct_tbl_cie_identity ()
RETURNS @Table TABLE (NoCompagnie NVARCHAR(1024), Nom NVARCHAR(1024), RowIndex INT IDENTITY) AS
BEGIN
INSERT INTO @Table
SELECT NoCompagnie, Nom FROM tbl_cie
RETURN
END
And the actual query:
SELECT *
FROM
fct_tbl_cie_identity() cie FULL OUTER JOIN
fct_tbl_contrat_identity()
fct_tbl_chantier_identity(
fct_tbl_activite_identity(
ORDER BY COALESCE(cie.RowIndex, contrat.RowIndex, chantier.RowIndex, activite.RowIndex)
dprovencher,
Nicely done :) I would be curious to know if there were any difference in performance when comparing our
two approaches...
Regards,
Patrick
Nicely done :) I would be curious to know if there were any difference in performance when comparing our
two approaches...
Regards,
Patrick
ASKER
The tables are not big enough I don't think so, but I'd rather use memory instead of the hard disk :)
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I really need more information to go on. The question is pretty vague.
By the way: Never say never. Temp tables have their place