Help with cross products and functions

Hello,
I have two tables that i need to join. The first table has a column which
is an encoded addition of one or more values in a second table.
table 1:
col1 col2 col3
1 a b 12
...
table 2:
col1 col2
1 x 4
2 y 8
3 z 16
...
the record for table 1, maps to records 1 and 2 from table 2. I know that
the value 12 in table 1 (col3) mapps to rows 1,2 in table 2 because of this
math function that decodes the encryption.
I have a function that is able to return a table that lists all the values
in table 2 that correspond to the supplied value in table 1..ie if i call
function fn_mappings(12) i get a table called @.result:
table2value
1 4
2 8
what i need to do is then combine these records together to get a view as
follows
col1 col2 table2value
1 a b 4
2 a b 8
...
is this possible to do? i need this to happen for EACH row in table 1 to
find corresponding records in table 2.
thanks for any and all help!
BenIn order to link both tables, I took the liberty of "re-create" a convenient
environment to get the results you asked. I hope it is ok.
Let me know if it works for you
-- Begin Script
create table tbl1
( id int primary key
, col1 varchar(10)
, col2 varchar(10)
, col3 int
)
create table tbl2
(
id int primary key
, fkid int
, col1 varchar(10)
, col2 int
)
insert into tbl1
values (1, 'a', 'b', 12)
insert into tbl2
values (1, 1, 'x', 4)
insert into tbl2
values (2, 1, 'x', 8)
insert into tbl2
values (3, 2, 'x', 16)
-- View the output of both tables
select * from tbl1
select * from tbl2
go
create function dbo.fn_mappings(@.in int)
returns table
as
return (select id, col2 from tbl2 where fkid = (select id from tbl1 where
col3 = @.in))
go
-- View the dbo.fn_mappings() output
select * from dbo.fn_mappings(12)
-- Output requested
select t1.id
, t1.col1
, t1.col2
, t2.col2
from tbl1 t1
inner join tbl2 t2
on t1.id = t2.fkid
-- Drop all objects
drop function dbo.fn_mappings
drop table tbl1
drop table tbl2
"Ben" wrote:

> Hello,
> I have two tables that i need to join. The first table has a column which
> is an encoded addition of one or more values in a second table.
> table 1:
> col1 col2 col3
> 1 a b 12
> ...
> table 2:
> col1 col2
> 1 x 4
> 2 y 8
> 3 z 16
> ...
> the record for table 1, maps to records 1 and 2 from table 2. I know that
> the value 12 in table 1 (col3) mapps to rows 1,2 in table 2 because of thi
s
> math function that decodes the encryption.
> I have a function that is able to return a table that lists all the values
> in table 2 that correspond to the supplied value in table 1..ie if i call
> function fn_mappings(12) i get a table called @.result:
> table2value
> 1 4
> 2 8
> what i need to do is then combine these records together to get a view as
> follows
> col1 col2 table2value
> 1 a b 4
> 2 a b 8
> ...
> is this possible to do? i need this to happen for EACH row in table 1 to
> find corresponding records in table 2.
> thanks for any and all help!
> Ben|||Edgardo,
Thank you for your response...however, I do not have the liberty of changing
table2's structure. The data is provided by an external source and I am
creating custom reporting for it. Therefor i cant give it a foreign key typ
e
column.
do you have any other ideas?
Thanks again
Ben
"Edgardo Valdez, MCSD, MCDBA" wrote:
> In order to link both tables, I took the liberty of "re-create" a convenie
nt
> environment to get the results you asked. I hope it is ok.
> Let me know if it works for you
> -- Begin Script
> create table tbl1
> ( id int primary key
> , col1 varchar(10)
> , col2 varchar(10)
> , col3 int
> )
> create table tbl2
> (
> id int primary key
> , fkid int
> , col1 varchar(10)
> , col2 int
> )
> insert into tbl1
> values (1, 'a', 'b', 12)
> insert into tbl2
> values (1, 1, 'x', 4)
> insert into tbl2
> values (2, 1, 'x', 8)
> insert into tbl2
> values (3, 2, 'x', 16)
> -- View the output of both tables
> select * from tbl1
> select * from tbl2
> go
> create function dbo.fn_mappings(@.in int)
> returns table
> as
> return (select id, col2 from tbl2 where fkid = (select id from tbl1 where
> col3 = @.in))
> go
> -- View the dbo.fn_mappings() output
> select * from dbo.fn_mappings(12)
> -- Output requested
> select t1.id
> , t1.col1
> , t1.col2
> , t2.col2
> from tbl1 t1
> inner join tbl2 t2
> on t1.id = t2.fkid
> -- Drop all objects
> drop function dbo.fn_mappings
> drop table tbl1
> drop table tbl2
>
> "Ben" wrote:
>

Help with aggregate functions

I am new to SQL. I am trying to write a query that will join two tables. The join works fine, however I am getting incorrect results. I would like the joined tables to be grouped by ProposalId for the most current ProposalDate listing the ProposalAmount associated with the most current ProposalDate. I have listed the query, the result I get, and the result I would like to get. Any help or direction you could give me would be greatly appreciated.

The SQL script:

SELECT
p.ProposalId, p.ProjectManagerId, p.JobNumber, p.ClientName,
s.[Proposal Date], s.[Proposal Amount], s.[Times Submitted]
FROM
Proposals p join
(SELECT ProposalId 'ProposalId', ProposalAmount 'Proposal Amount', MAX(ProposalDate) 'Proposal Date', COUNT(ProposalId) 'Times Submitted'

FROM
SubmissionHistory
WHERE
ProjectManagerId = 1
GROUP BY
ProposalAmount, ProposalId) s on p.ProposalId = s.ProposalId

This is the result I get:

Proposal Project Job Proposal Proposal Times
Id ManagerId Number Client Date Amount Submitted

1 1 01004-001 SPS 2007-05-05 10000.00 1
2 1 01007-001 SAP2007-07-09 8000.00 1
2 1 01007-001 SAP2007-07-07 10000.00 1
4 1 01008-001 EAS2007-05-30 75000.00 1
4 1 01008-001 EAS2007-05-07 80000.00 1
4 1 01008-001 EAS2007-05-05 90000.00 1

This is the result I would like to get:

Proposal Project Job Proposal Proposal Times
Id ManagerId Number Client Date Amount Submitted

1 1 01004-001 SPS 2007-05-05 10000.00 1
2 1 01007-001 SAP2007-07-09 8000.00 2
4 1 01008-001 EAS2007-05-30 75000.00 3

Quote:

Originally Posted by yoyo35

I am new to SQL. I am trying to write a query that will join two tables. The join works fine, however I am getting incorrect results. I would like the joined tables to be grouped by ProposalId for the most current ProposalDate listing the ProposalAmount associated with the most current ProposalDate. I have listed the query, the result I get, and the result I would like to get. Any help or direction you could give me would be greatly appreciated.

The SQL script:

SELECT
p.ProposalId, p.ProjectManagerId, p.JobNumber, p.ClientName,
s.[Proposal Date], s.[Proposal Amount], s.[Times Submitted]
FROM
Proposals p join
(SELECT ProposalId 'ProposalId', ProposalAmount 'Proposal Amount', MAX(ProposalDate) 'Proposal Date', COUNT(ProposalId) 'Times Submitted'

FROM
SubmissionHistory
WHERE
ProjectManagerId = 1
GROUP BY
ProposalAmount, ProposalId) s on p.ProposalId = s.ProposalId

This is the result I get:

Proposal Project Job Proposal Proposal Times
Id ManagerId Number Client Date Amount Submitted

1 1 01004-001 SPS 2007-05-05 10000.00 1
2 1 01007-001 SAP2007-07-09 8000.00 1
2 1 01007-001 SAP2007-07-07 10000.00 1
4 1 01008-001 EAS2007-05-30 75000.00 1
4 1 01008-001 EAS2007-05-07 80000.00 1
4 1 01008-001 EAS2007-05-05 90000.00 1

This is the result I would like to get:

Proposal Project Job Proposal Proposal Times
Id ManagerId Number Client Date Amount Submitted

1 1 01004-001 SPS 2007-05-05 10000.00 1
2 1 01007-001 SAP2007-07-09 8000.00 2
4 1 01008-001 EAS2007-05-30 75000.00 3

Your core problem is having the ProposalAmount field in the inner query un-aggregated. Either remove it from there or use an aggregation function. I suggest that you reference to the amount in the outer query by proposal ID. (It is however a question how and if you want to have a single amount mixed with aggregated values (dates, times submitted) in the same line. If not, use aggregation inside.)

If you're really new to SQL this is more than decent even so far...|||Thank you for your reply. I appreciate your time. I will give it a shot and see what happens. Once again, thanks!!!!|||Hi i am not sure but i think you are trying to do a union join,, you should try and put in distinct in yout select statements so distinct(ID) for example