so far, the subqueries we saw do not depend on any other query , and it will execute the subquery just once. but when it comes to a correlated subquery it's going to be slightly different. for every ...

Subqueries and Nested Queries A subquery (also called inner query or nested query) is a query inside another SQL query. It is used to fetch data that will be used by the main (outer) query. 🔹 Types ...

Search engines are integral features to any well designed website, but how well does your search engine work? Most simple search engines work by querying one column of a database for the search terms.