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Macro substitution and evaluate - which to use
Message
From
19/07/2007 15:44:48
 
 
To
19/07/2007 15:16:11
Mike Yearwood
Toronto, Ontario, Canada
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Miscellaneous
Thread ID:
01241954
Message ID:
01242117
Views:
18
Thank you, Mike,
for the explanation. I really like that idea. It might take me a bit to wrap my head around doing it all the time, from now on. :-) Can't go back and re-write all my code.

I am trying to get the code to work now. I am having problems with the sql statement and am trying to figure out why now.

Beth

>Hi Beth
>
>Allow me to point out something different from the others. Consistency of technique is a huge benefit to productivity. I try to only build SQL with textmerge, that way I don't have to try and decide about little things like having to use & or name expressions or textmerge.
>
>The point is to get the string built in as simple and maintainable a fashion as possible. The execution of the command will usually exceed the time taken to build the command.
>
>So, to paraphrase Sergey's version...
>
>TEXT TO m.lcSql TEXTMERGE NOSHOW PRETEXT 15
>SELECT <> as <>
> FROM <>
> INTO TABLE <> DATABASE <>
>ENDTEXT
>&lcSql.
>
>TEXT...ENDTEXT for every SQL, making the SQL very easy to write/edit. <<>> for every variable. Very little to remember and (as a result) less room for mistakes.
>
>>Hi All,
>>
>> I am trying to set up a select statement, I do not know the field name ahead of time. I do an AFIELDS() to get the field name, since there is only one field in the table. I need to change the field name to another name which I get before this select statement. I am thinks this way:
>>
>>SELECT EVALUATE(latmp[1]) as &lcnewfield. FROM &lcoldfile. ;
>>   INTO TABLE lcnewfile DATABASE &lcTAbleDbc.
>>
>>
>>Am I using the macro substitution too much? Can I do this easier? or nicer?
>>
>>TIA
>>Beth
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