BEW - Databases

SQL is a type of databases that tracks records using tables

• True

• False

In SQL, we can order the results using the ____ directive keyword.

NoSQL means

• We hate SQL and we say NO

• Non-SQL

• Not only SQL

When we `LEFT JOIN` 2 tables in SQL on a common value, the results are

• All the rows in both tables that match the condition

• Some rows of the right table and all rows on the left table

• Only the rows that match in both tables

• All rows of the right table and only matching rows of the left table

In MongoDB, what is the difference between `find` and `findOne`?

In MongoDB, a document contains a collection, and the collection contains fields (attributes)

• True

• False

• It's the opposite

Why would each document have an _id?