Man pages matching name dbix::class::storage::dbi::odbc::db2_400_sql in section 3pm:

DBIx::Class::Storage::DBI::ODBC::DB2_400_SQL.3pm.en	debian 10 / libdbix-class-perl
DBIx::Class::Storage::DBI::ODBC::DB2_400_SQL.3pm.en	debian 11 / libdbix-class-perl
DBIx::Class::Storage::DBI::ODBC::DB2_400_SQL.3pm.en	debian 12 / libdbix-class-perl