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Aggregate from multipl tables
Message
De
15/01/2000 11:40:07
Cetin Basoz
Engineerica Inc.
Izmir, Turquie
 
 
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Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
Aggregate from multipl tables
Divers
Thread ID:
00318566
Message ID:
00318566
Vues:
64
Hi folks,
I have brain dead by now :)
I have a parent table say myParent with PK "iid". There are few child tables (not really childs but have "pid" as FK referencing "iid"), say T1, T2, T3, T4.
I need to collect rowcounts in each table per "iid" (CrossTab).
myParent.iid   t1.pid   t2.pid    t3.pid   t4.pid
------------   ------   ------    ------   ------
1                 1        2         1        1
2                 1        3         5        2
3                 1        3         5        3
4                 2        4         7        4
5                 4                  7        6
6                 4                           6
7
8
9

* Desired output 

pid   Cnt1  Cnt2  Cnt3  Cnt4
---   ----  ----  ----  ----
 1      3          1     1
 2      1     1          1
 3            2          1
 4      2     1          1
 5                 2
 6                       2
 7                 2
 8
 9
Any idea how I could do this just with one SQL ? TIA
Cetin
Çetin Basöz

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