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SQL Statement Help
Message
From
02/11/2009 09:47:52
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivia
 
 
To
02/11/2009 09:41:38
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9
OS:
Windows XP SP2
Network:
Windows 2003 Server
Database:
Visual FoxPro
Miscellaneous
Thread ID:
01432687
Message ID:
01432691
Views:
42
>I have two tables as follows (not all fields listed):
>
>Table 1
>DrwNo  Lastrev  .........
>100         B
>101         C
>102         D
>etc....
>
>
>Table 2
>DrwNo    Revno .....
>100          0
>100          A
>100          B
>101          0
>101          A
>101          B
>101         C
>etc...
>
>
>What I would like to produce is the following cursor:
>
>
>Drwno       Revisions
>100           '0, A, B'
>101           '0, A, B, C'
>102           '0, A, B, C, D'   
>
>
>Is this possible with a single SQL statement? If so, can someone please point me in the right direction.
>
>Thanks,

I believe this is basically not possible - not with SQL alone - because that is not the way SQL works. Not even with several SELECT statements. You need a UDF that loops through each Drwno and creates the comma-delimited string. Once you have it, it is quite easy to add this as an additional (calculated) field. Make sure to CAST it to type memo.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
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