Why not use TEXTMERGE to build whole SQL statement?

TEXT TO lcSql TEXTMERGE NOSHOW
Select <<thisform.cLookupField>> From <<thisform.cLookupAlias >>
  where <<thisform.cLookupField>> = tcLookup 
  Into Array laLookup
ENDTEXT
&lcSql 

>I seem to recall having problems in the past trying to use "Thisform.Whatever" property references in certain places in a SQL call, so, now I tend to do this tecnique to get the form properties into local vars and then using the local vars in the SQL:
>
>

>lcLookupTable=this.cLookupAlias
>lcLookupField=this.cLookupField
>lcWhereClause= lcLookupTable + '=' + tcLookup
>
>Select &lcLookupField From &lcLookupTable Where &lcWhereClause Into Array laLookup
>

>
>Is this the best practice, or can I just directly reference the form properties in a SQL?
>
>Something like this...
>

>Select (thisform.cLookupField) From (thisform.cLookupAlias) where (thisform.cLookupField)=tcLookup Into Array laLookup
>

>
>That just looks like it won't even work. But it would keep me from creating all those local vars.