Whether or not you can insert placeholders for column names is database-specific (see Placeholders and Bind Values) but will at the least compromise the speed of your queries if they are used more than once. Rather than using placeholders for column names, the easy solution would be to just bind nulls to the unused parameters and use 1 SQL statement.

If you are doing updates, so you cannot have unused fields present, I personally usually use branching in the Perl and concatenate my SQl based on local requirements. Ugly, I know, but it gets the job done.

In reply to Re: DBI, place holders and CGI forms by kennethk
in thread DBI, place holders and CGI forms by Anonymous Monk

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