you're not exporting anything by default (see the Exporter docs).. do either one of these:

# this will export the functions by default
our @EXPORT = qw(connectdb dosql);

# This will make them available upon request ...
our @EXPORT_OK = qw(connectdb dosql);
# ... and the calling code will need to be like:
use sqlsupport qw/onnectdb dosql/;
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