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SQL Related Articles: Simple SELECT builder
2004-04-19 -- Juanro
 
Newsgroups: softvelocity.clarion.databasedrivers Have you ever seen something like this? Test FILE(...) Record Field1 LONG Field2 LONG Desc STRING END Test{PROP:SQL} = 'SELECT Desc FROM Test WHERE ...' !error: invalid character value ... Do you have a file with a correct ...PROP:SQL = 'SELECT ...' and then you changed the file structure and "BANG!" ? (I was. Many times ) Since then I'm using this (see below) I guess many of you could have something similar, but anyway, here it is. Hope you find it usefull, best regards, Juanro ---------------------------------------------------------------------------- -------------------------------- BuildSelectList PROCEDURE (FILE ThisTable) ! Declare Procedure LOC:StrLine STRING(10000) ! CODE LOC:StrLine = '' count# = 1 LOOP f#=1 TO ThisTable{PROP:Fields} IF ThisTable{PROP:Type,f#}<>'GROUP' LOC:StrLine = CLIP(LOC:StrLine) & CHOOSE(count# > 1,',','') & CLIP(UPPER(ThisTable{PROP:Name,f#})) count# += 1 END END RETURN CLIP(LOC:StrLine) ---------------------------------------------------------------------------- ------------------------------ Use it like this: Test{PROP:SQL} = 'SELECT ' & BuildSelectList(Test) & ' FROM Test WHERE ...'


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