Re: SQL - Using result fields in a calculation -- MIDRANGE-L

I am keen to learn ...

I removed the extra bracket but still get error

With cteAmount (ntrnpd, amount)
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'UDD'
group by ntrnpd, ntrtty),
cteAdjust (ntrnpd, adjust)
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'ADJ'
group by ntrnpd, ntrtty)

Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph, npdnpd,
nphnab,
npdamt + ifnull(cteAmount.adjust, 0) - <<====
This line is highlighted on npdamt
ifnull(cteAmount.amount, 0)
from dktnphpf
left outer join cteAmount on dktnphpf.ntrnpd = cteAmount.ntrnpd
left outer join cteAdjust on dktnphpf.ntrnpd = cteAdjust.ntrnpd
where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

SQL State: 42703
Vendor Code: -206
Message: [SQL0206] Column or global variable NPDAMT not found.

From: "Joep Beckeringh via MIDRANGE-L" <midrange-l@xxxxxxxxxxxxxxxxxx>
To: midrange-l@xxxxxxxxxxxxxxxxxx
Cc: "Joep Beckeringh" <joep.beckeringh@xxxxxxxxxx>
Date: 28/02/2021 04:41 PM
Subject: Re: SQL - Using result fields in a calculation
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>

To test it I had to change names to things known in our database and
then I then I had to change it back to your names.

If I paste this, I get a an error because there is a bracket too many on
the fourth line. If I remove that, I get no more syntax error (just that
the file does not exist).

And it may not look easier at first sight, but it takes some time to let
this CTE syntax sink in. Once you get the hang of it, you'll see the
possibilities.

Joep Beckeringh

Op 28-2-2021 om 07:18 schreef Don Brown via MIDRANGE-L:

Thanks Joep,

I tried running that but it returns error.

With cteAmount (ntrnpd, amount)
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'UDD'
group by ntrnpd, ntrtty),
cteAdjust (ntrnpd, adjust))
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'ADJ'
group by ntrnpd, ntrtty)

Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph, npdnpd,
nphnab,
npdamt + ifnull(cteAmount.adjust, 0) -
ifnull(cteAmount.amount, 0)
from dktnphpf
left outer join cteAmount on dktnphpf.ntrnpd =

cteAmount.ntrnpd

left outer join cteAdjust on dktnphpf.ntrnpd =

cteAdjust.ntrnpd

where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

SQL State: 42601
Vendor Code: -104
Message: [SQL0104] Token ) was not valid. Valid tokens: AS.

Sorry but this does not look easier :-)

From: "Joep Beckeringh via MIDRANGE-L" <midrange-l@xxxxxxxxxxxxxxxxxx>
To: midrange-l@xxxxxxxxxxxxxxxxxx
Cc: "Joep Beckeringh" <

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Date: 28/02/2021 03:46 PM
Subject: Re: SQL - Using result fields in a calculation
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>

Oh, there is something missing in the second ifnull; should be

With cteAmount (ntrnpd, amount)
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'UDD'
group by ntrnpd, ntrtty),
cteAdjust (ntrnpd, adjust))
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'ADJ'
group by ntrnpd, ntrtty)

Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph, npdnpd,
nphnab,
npdamt + ifnull(cteAmount.adjust, 0) -
ifnull(cteAmount.amount, 0)
from dktnphpf
left outer join cteAmount on dktnphpf.ntrnpd =

cteAmount.ntrnpd

left outer join cteAdjust on dktnphpf.ntrnpd =

cteAdjust.ntrnpd

where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;
Op 28-2-2021 om 06:43 schreef Joep Beckeringh via MIDRANGE-L:

Don and Alan,

The CTEs should be something like 'with <virtual_table> as
<select_statement>'. So try this:

With cteAmount (ntrnpd, amount)
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'UDD'
group by ntrnpd, ntrtty),
cteAdjust (ntrnpd, adjust))
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'ADJ'
group by ntrnpd, ntrtty)

Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph, npdnpd,
nphnab,
npdamt + cteAmount.adjust - cteAmount.amount
from dktnphpf
join cteAmount on dktnphpf.ntrnpd = cteAmount.ntrnpd
join cteAdjust on dktnphpf.ntrnpd = cteAdjust.ntrnpd
where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

You should probably be prepared for situations where a 'UDD' or 'ADJ'
record is not available:

With cteAmount (ntrnpd, amount)
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'UDD'
group by ntrnpd, ntrtty),
cteAdjust (ntrnpd, adjust))
as (select ntrnpd, sum(ntramt) from dktntrpf where ntrtty = 'ADJ'
group by ntrnpd, ntrtty)

Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph, npdnpd,
nphnab,
npdamt + ifnull(cteAmount.adjust, 0) -
ifnull(cteAmount.amount)
from dktnphpf
left outer join cteAmount on dktnphpf.ntrnpd =

cteAmount.ntrnpd

left outer join cteAdjust on dktnphpf.ntrnpd =

cteAdjust.ntrnpd

where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

Joep Beckeringh

Op 28-2-2021 om 05:36 schreef Don Brown via MIDRANGE-L:

Thank Alan but same error;

See my testing;

select sum(ntramt) from dktntrpf where ntrnpd = 3913 and ntrtty =

'UDD';

<=== This works and gives the result

select sum(ntramt) from dktntrpf where ntrnpd = 3913 and ntrtty =

'ADJ';

<=== This works and gives the result

Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph,

npdnpd,

nphnab
-- Cast(npdamt + Adjust - amount As Decimal(11,2))
<=== I
commented the cast out and this works returning one row.
from dktnphpf, dktnpdpf
where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

With Amount as (select sum(ntramt) from dktntrpf where ntrnpd = 3913

and

ntrtty = 'UDD'), -- <=== But this fails with the error below.
Adjust as (select sum(ntramt) from dktntrpf where ntrnpd = 3913 and
ntrtty
= 'UDD')
Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph,

npdnpd,

nphnab,
Cast(npdamt + adjust - amount As Decimal(11,2))
from dktnphpf, dktnpdpf
where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

Error:
SQL State: 42703
Vendor Code: -206
Message: [SQL0206] Column or global variable ADJUST not found.

Which is the same error I had originally ?

From: "Alan Campin" <alan0307d@xxxxxxxxx>
To: "Midrange Systems Technical Discussion"
<midrange-l@xxxxxxxxxxxxxxxxxx>
Date: 28/02/2021 02:23 PM
Subject: Re: SQL - Using result fields in a calculation
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>

With Amount as (select sum(ntramt) from dktntrpf where ntrnpd = 3913

and

ntrtty =
'UDD'),
Adjust as (select sum(ntramt) from dktntrpf where ntrnpd = 3913 and
ntrtty
=
'UDD')
Select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph,

npdnpd,

nphnab,
Cast(npdamt + adjust - amount As Decimal(11,2))
from dktnphpf, dktnpdpf
where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

The cast is not really needed but I like to define the type and size

any
variable I define.

I would recommend for testing that you test in pieces.

First

With Amount as (...)
Select * from amount;

If that works add the next piece and see that works. If both work add
the
last piece,

That way you see if there is some other error in the code
Also I note you don't have a join clause. Deliberate?

On Sat, Feb 27, 2021, 6:50 PM Don Brown via MIDRANGE-L <
midrange-l@xxxxxxxxxxxxxxxxxx> wrote:

Thank you for your reply Alan.

Would you be able to share an example as i have not used CTE's

Thanks

From: "Alan Campin" <alan0307d@xxxxxxxxx>
To: "Midrange Systems Technical Discussion"
<midrange-l@xxxxxxxxxxxxxxxxxx>
Date: 28/02/2021 12:47 PM
Subject: Re: SQL - Using result fields in a calculation
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>

Why not use CTE's. Much simpler code.

On Sat, Feb 27, 2021, 6:33 PM Don Brown via MIDRANGE-L <
midrange-l@xxxxxxxxxxxxxxxxxx> wrote:

Hi,

I have the following SQL

select npdsdt, npdedt, npdamt, npdsts, npdtno, npdabl, npdnph,

npdnpd,

nphnab,
(select sum(ntramt) from dktntrpf where ntrnpd = 3913 and

ntrtty

=

'UDD') as amount,
(select sum(ntramt) from dktntrpf where ntrnpd = 3913 and

ntrtty

=

'ADJ') as adjust,
npdamt + adjust - amount as avail
from dktnphpf, dktnpdpf
where nphcoy = 1 and nphnab = 'ND0001' and nphnph = npdnph;

I am running it in iACS

It fails indicating the variable "adjust" is not found.

I am obviously not using the correct terms when searching google as

can't find an example of how to use the results or a sub select.

Any assistance would be appreciated.

Thanks

Don

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