TestNG run only database tests example
Annotation
@Test(groups = "database-productA")
TestNG config
<test name="testng-env-db" verbose="3">
<groups>
<run>
<exclude name="disabled" />
<include name="database-productA" />
</run>
</groups>
<packages>
<package name="com.company.producta.*"/>
</packages>
</test>