Podcast
Questions and Answers
In a flat database, data is stored in multiple connected tables.
In a flat database, data is stored in multiple connected tables.
False
A field holds a unique identifier for each record in the database.
A field holds a unique identifier for each record in the database.
True
Each table may have multiple primary keys to identify records uniquely.
Each table may have multiple primary keys to identify records uniquely.
False
Fields in a table represent the actual data being captured.
Fields in a table represent the actual data being captured.
Signup and view all the answers
Primary keys in a database are usually created by modifying an existing field in a table.
Primary keys in a database are usually created by modifying an existing field in a table.
Signup and view all the answers
In a well-run database, metadata is not considered valuable
In a well-run database, metadata is not considered valuable
Signup and view all the answers
Denormalized flat-file databases do not create problems when trying to insert, delete, or modify records
Denormalized flat-file databases do not create problems when trying to insert, delete, or modify records
Signup and view all the answers
Edgar F Codd, the inventor of relational databases, did not emphasize the importance of normalisation
Edgar F Codd, the inventor of relational databases, did not emphasize the importance of normalisation
Signup and view all the answers
Data integrity becomes easier to maintain when anomalies occur in a poorly planned database
Data integrity becomes easier to maintain when anomalies occur in a poorly planned database
Signup and view all the answers
Binary data is always converted into human-readable format before it becomes meaningful information
Binary data is always converted into human-readable format before it becomes meaningful information
Signup and view all the answers
