I cannot help you; if you don't understand the purpose of your program (i.e. the database query) then you have big problems.

However, some pointers:

• use the concat operator, i.e. instead of $sqlcode = "$sqlcode AND ( blah )"; say $sqlcode .= "AND ( blah )";
• reformat your SQL query as I have done to try and make the SQL easier to understand
• print out your query after constructing it (e.g. print( $sqlcode );)
• pay close attention to your errors - does Perl generate warnings? Does your database generate warnings?

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