With use strict; you get the following errors: 

Global symbol "$db" requires explicit package name at /apps/otctest/bi
+n/report/xx.perl line 8.
Global symbol "$filename" requires explicit package name at /apps/otct
+est/bin/report/xx.perl line 11.
Global symbol "@data" requires explicit package name at /apps/otctest/
+bin/report/xx.perl line 21.
Variable "$data" is not imported at /apps/otctest/bin/report/xx.perl l
+ine 24.
Global symbol "$data" requires explicit package name at /apps/otctest/
+bin/report/xx.perl line 24.
Variable "$data" is not imported at /apps/otctest/bin/report/xx.perl l
+ine 26.
Global symbol "$data" requires explicit package name at /apps/otctest/
+bin/report/xx.perl line 26.

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The simple fix is

foreach my $filename (@filenames) {

I'm not trying to be snarky; what do you think $db and @data are? (The errors are telling you to define them.) Once you do, revised: you're going to start getting errors due to the underlying logical problems in your code.

In reply to Re^5: Inserting, update and deleteting a database under conditions by apl
in thread Inserting, update and deleteting a database under conditions by Nik

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