Graded Quiz: Relational DB Concepts and Tables

Graded Quiz: Relational DB Concepts and Tables >> Databases and SQL for Data Science with Python

A database is a logically coherent collection of data with some inherent meaning ✓

Data can only be added and queried from a database, but not modified.

Only SQL can be used to query data in a database.

All of the above

Correct: Correct. A database is a repository or logically coherent collection of data with some inherent meaning

rows

columns ✓

constraints

keys

Correct: Correct. Attributes of an entity become columns in a table.

DML statement

DDL statement ✓

Both of the above

Correct: Correct. The CREATE TABLE statement defines a table, so it is a DDL statement.

Graded Quiz: Relational DB Concepts and Tables >> Databases and SQL for Data Science with Python