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Quiz: SQL Relations

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SQL Relations

?: In SQL, there is no data type for arrays.

(X) True ( ) False

?: What is used to associate one table to another?

( ) Primary Key ( ) Integer Key (X) Foreign Key ( ) ID Key

?: If you had a table for users and a table for posts, you would add the foreign key to the users table.

( ) True (X) False

?: RIGHT JOIN and FULL JOIN are not supported by SQLite.

(X) True ( ) False

?: What type of join returns all rows from the right table, and the matched rows from the left table?

( ) Inner Join ( ) Left [Outer] Join (X) Right Join ( ) Full Join

?: What type of join returns all rows from the left table, and the matched rows from the right table?

( ) Inner Join (X) Left [Outer] Join ( ) Right Join ( ) Full Join

?: What type of join returns all rows when there is at least one match in both tables?

(X) Inner Join ( ) Left [Outer] Join ( ) Right Join ( ) Full Join

?: What type of join returns all rows when there is a match in one of the tables?

( ) Inner Join ( ) Left [Outer] Join ( ) Right Join (X) Full Join

?: A join table creates a many-to-many relationship between data.

(X) True ( ) False

?: A complex join in SQL is also referred to as an inner join.

( ) True (X) False

???

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