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Integer constant for SELECT UNION
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00754666
Message ID:
00754679
Vues:
21
>>Hi. Sorry this is such a stupid question < g > but I've looked all through VFP help and can't find the answer.
>>
>>How do you designate an integer constant?!
>>(Like ldDate = {} or lyMoney = $0).
>
>Not a stupid question at all. The consensus seems to be that you need to create a table with integer fields and then UNION it in with the rest of the SELECT.

Ouch. I was afraid of that. I've used a similar trick to get an empty memo field into a SQL SELECT result.

For that to work with a view definition, the table with the integer field would have to exist permanently.
CREATE TABLE Junk (jnk_pk I)
CREATE SQL VIEW v_AllCustHist AS
 SELECT Table1.Field1,
 Table1.tb1_pk,
 Junk.jnk_pk AS tb2_pk,
 Junk.jnk_pk AS tb3_pk
UNION SELECT Table2.Field1,
 Junk.jnk_pk AS tb1_pk,
 Table2.tb2_pk,
 Junk.jnk_pk AS tb3_pk
UNION SELECT Table3.Field1,
 Junk.jnk_pk AS tb1_pk,
 Junk.jnk_pk AS tb2_pk,
 Table3.tb3_pk
Thanks for the quick response,
Rich Addison, Micro Vane, Inc., Kalamazoo, MI
Relax, don't worry, have a homebrew.
- Charlie Papazian, The New Complete Joy of Home Brewing
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