Theoretically, we still apply the same logic. But, practically, we have to see what can be tested and what cannot be tested and adapt our test cases accordingly.
For example, there may be a field that says that application may allow upto 9999 accounts to be created. It is practically impossible to create so many accounts and test the limit. In such cases, these techniques cannot be applied.

Applying BVA, the test cases would be 0, 1, 2, 79, 80, 81 and 1 random number from within the range let’s say it is 45.

Applying EQP, the test cases would be 1 number from each of the classes let’s say,
5 from 1-18 class,
29 from 19-50 class,
72 from 51 to 80 class.

Besides these, applying BVA again, the internal boundaries also should be tested, hence, we should also include 18, 19, 50 and 51 in our test cases.

Thus, overall, test cases should be for 0, 1, 2, 5, 18, 19, 29, 45, 50, 51, 72, 79, 80, 81 (total of 14).

Since the number of test cases is high, we can easily optimize the same and reduce it to the following set:
0, 1, 2, 18, 19, 29, 50, 51, 79, 80, 81 (total of 11).

and also very thankful to kishor, shuhas,vijay and vijetha. they are sharing such a very important knowledge between us..