DBI connect('$MS_SQL_SERVER_HOST','sa',...) failed: [Microsoft][ODBC Driver Manager] Data source name not found and no d
efault driver specified (SQL-IM002)(DBD: db_login/SQLConnect err=-1) at D:\Perl\DB_ABFRAGE\TEST_2.pl line 66
Fehler bei Datenbankverbindung:  at D:\Perl\DB_ABFRAGE\TEST_2.pl line 66, <IN> line 16.