Nested grouping vs Parent Child Grouping

Question

In SSRS, We can group by two types.

1. By clicking add in the group properties.
   
2. By Adding Child group under the previously created parent group.

Which will work efficient/Fast?
Note: There is no expr or total based on the Child group

Answer 1

Hi @Navinkumar Kanagaraj ,
I can't get your point clearly.
Usually, we will use the method of adding parent groups/child groups to create groups. In this grouping method, you can clearly view row groups, column groups and details in the Grouping Pane. The Grouping pane supports two modes, which is convenient Subsequent design of the report (such as adding subtotals, fixing headers, etc.).
Best Regards,
Joy

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Answer 2

Hi @Navinkumar Kanagaraj

I did a local test ,you can take a reference.
Preview result：

My table is like this:

Then I select the Details row group,set the properties like below:

Best Regards,
Isabella

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