Hi ,
I have a table where size is increasing daily. In that table only inserts and deletes happens. This table is referencing 15 other tables. We have given delete cascade, so if a row is deleted in parent table, the matching records will also be deleted in those child tables.
It is taking lot of time to delete. So, I am planning to create index on those child tables.
My question is, apart from inserts, I am only going to delete records from those tables. How index improves performance for deleting records? How index is affected or how to do index management in this case?