Select function-based index data as rows in a query?

All we need is an easy explanation of the problem, so here it is.

I’m trying to learn about indexes in Oracle 18c.

As a novice, it’s occurred to me that it might be interesting to view the actual data that’s in a function-based index:

create index sidewalk_endpoint_list_idx on my_owner.sidewalks(my_owner.endpoint_list(shape),objectid); 

Is there a way to SELECT an index’s data in a query?

Fake example:


That might be a silly question. Maybe indexes aren’t stored in tables. But I thought it was worth asking, just so I can learn.

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

You can’t, but you can select it from the table:

select my_owner.endpoint_list(shape),objectid,rowid
  from my_owner.sidewalks;

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from or, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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