It is also always a good idea to test the database connection by clicking on test connection , which can be found on top of this screen 单击test connection来测试数据库连接是不错的方法,该功能可以在界面的顶部找到。
After you have defined and saved a default datasource , you can use the test connection function to make sure that the parameters in the data source definition are correct 在定义并保存了default datasource后,您可以使用test connection函数来确保数据源定义中的参数是正确的。
This paper describes the definition of “ return wave attenuation ” and “ reflect attenuation ” , introduces theoretically the meaning of “ return wave attenuation ” on view point of power , points out the difference between “ reflect attenuation ” and “ return wave attenuation ” and demonstrates the test connection used as “ return wave attenuation ” measurement before being really “ reflect attenuation ” measurement 论述了“反射衰耗”与“回波衰耗”的定义,从理论上推导出“回波衰耗”在功率角度上的含义,阐明了“反射衰耗”与“回波衰耗”之间的区别,也论证了历来作为“回波衰耗”测试的试验接线实际是“反射衰耗”测试的试验接线。