View best practice for data search

There’s already a question on the forums that seems to partially answer this. Asking there may prompt more answers :slightly_smiling:

Otherwise from the Couchbase documentation::

'a view is not a query, it’s an index. Views are
persistent, and need to be updated (incrementally) whenever documents
change, so having large numbers of them can be expensive. Instead, it’s
better to have a smaller number of views that can be queried in
interesting ways. ’

I’d love to know about those interesting ways myself , the full doc::