data level source

基本解释

If you're using a driver manager, SAMPLE can be replaced by an ODBC-level data source name.
如果使用一个驱动程序管理器，那么可以用一个 ODBC 级数据源名称替代 SAMPLE。
The user or administrator can limit the degree to which asynchrony is used at a query or data source level, in order to limit its impact on local and remote resources.
用户或管理员可以在查询级或数据源级限制使用异步的程度，以限制异步对本地和远程资源所造成的影响。
But if you are an advanced user, it gives you the option to configure more than 10 different properties at the Connection pool level and more than 10 different properties at the data source level.
但是如果您是一名高级用户的话，它向您提供了机会去在 Connection pool 层次上配置超过 10 个不同的属性，并在数据源层次上配置超过 10 个不同的属性。

The confrontation of ideas at these workshops has definitively advanced the discipline to a level that archaeoseismological evidence is now considered as a complementary source of earthquake data in the whole range of approaches in earthquake science.
UNESCO: Tales set in Stone: learning from ancient earthquakes
This is very interesting because with this level of power transport USB can become not only the data channel but also the power source for a variety of consumer electronics devices.
FORBES: New Technology and Investment Opportunities at the 2011 Intel Developers Forum