How to create connecton with Aqua Data Studio 3.7.6

Provider depends on what kind of database you are using.

Data source is your database

Here's some information on working with databases and TestComplete:

https://support.smartbear.com/testcomplete/docs/testing-with/advanced/working-with-external-data-sources/databases/index.html

This may or may not help you with Aqua Data Studio, but this is a TestComplete forum after all  :)