Subject Re: [IBO] Syntax of Links?
Author Daniele Teti
Helen Borrie wrote:
[cut]
Thanx for your exaustive answer.

>>Links in TIBO_Query.KeyDescLinks are used when... with this syntax...
>>
>>
>Not available to TIBOQuery. It's used as part of a linking for embedding
>TIB_LookupCombo into a TIB_Grid.
>
>
Only for grids? So, If I've a grid for select and a form for editing
with some combolookup I'm not need KeyDescLinks?
[cut]

>See also the examples in the Samples directory of your IBO installation.
>
Another question.
There is particular reason for this syntax

SELECT
ID
, TESTO
, DATA
, ID_AUTORE
, (SELECT DESCRIZIONE FROM AUTORI
WHERE ID=B.ID_AUTORE) AUTORE
FROM BARZE B

insted of (IMHO more cleaner )

SELECT
A.ID ID
, TESTO
, DATA
, ID_AUTORE
, DESCRIZIONE
FROM
BARZE B
join
AUTORI A
on B.ID_AUTORE=A.ID

I've seen this syntax in many examples...

There is a reason to use 1st instead of 2nd ?
thanx


-
Daniele Teti (tm)
Software Architect
http://dade2000.altervista.org
--



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