Question

Primary keys helps in indexing or________ the record​

Answer 1

Explanation:

A primary key index is created by default when a table is created with a primary key specified. It will match the primary key in nature, in that it will be a single-column index if the primary key is on a single column and a multi-column composite index if the primary key is a composite primary key.Index records contain search key value and a pointer to the actual record on the disk.