DBI Threaded use access?

Hi DBI-Users,

I have a simple Perl program to open a file, db, serially read file, write
file records to db, close db, close file.

if, between the db open & close, given a single dbh, i create multiple
threads, each
reading a segment of the file and asynchronously writing to db using the
same dbh,
is that ok?

TIA, jackc...