Extended ER Features Multiple Choice Questions (MCQ) PDF - 400

MCQ 1996: Total generalization can be specified in an E-R diagram by adding the keyword of

1. All
2. Whole
3. Complete
4. Total

MCQ 1997: Multilevel indices are closely related to

1. Stack structures
2. Array structures
3. Hash structures
4. Tree structures

MCQ 1998: The schema of a relation in the relational model

1. Changes with time
2. Changes with access
3. Changes with updation
4. Doesn't changes

MCQ 1999: An attribute(s) that is used to look up for records in a file is called a

1. Function key
2. Catalog key
3. Access key
4. Search key

MCQ 2000: The referencing new row as clause can be used with updates in addition to

1. Inserts
2. Updates
3. Alters
4. Deletes