Many customers use the type 3 driver instead of the type 2 driver to avoid installing the db2 client and cataloging the database to create the database directory information required for type 2 driver connections using the legacy cli - based driver 许多客户使用type 3驱动程序而非type 2驱动程序,以避免必需的db2客户机安装和必需的db2 catalog database命令,后者用于创建使用传统的cli驱动程序进行type 2连接所必需的数据库目录信息。