Test your basic knowledge |

Database Management

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. All determinants are candidate keys.






2. A programming language designed for managing & obtaining data in relational database management systems (RDBMS)






3. Refers to the number of associations that can exist between two record types.






4. To modify a database - or the files associated with the database.






5. The set of fields in a table which stores unique values and so any one from the list can be selected to be the primary key.






6. No partial functional-dependencies.






7. In an access databse - a window in which you work with tables in design view or datasheet view.






8. A referential integrity constraint is a statement that limits the values of the foreign key to those already existing as primary key values in the corresponding table.






9. A feature that speeds up searching and sorting in a table based on key values and can enforce uniqueness on the rows of a table.






10. A characteristic of a field that determines what kind of data it can store and what type of operations can be performed on it.






11. A question about the data stored in your tables - or a request to perform an action on the data. A query can bring together data from multiple tables to serve as the source of data for a form. report or data access page.






12. A link between two or more tables.






13. Stored procedures that may be configured to automatically execute (fire) when certain events take place.






14. Many-to-many relationships occur when each record in TableA may have 0 - 1 or many linked records in TableB and vice-versa.






15. An operator used to compare two values or expressions; For example - < (less than) - > (greater than) - = (equal to)






16. The DML statement used to choose data from a database. The result is stored in a temporary table - called the result-set.






17. A field - set up in a query - that displays the result of an evaluated expression rather than displaying stored data.The value of the calculated field is re-calculated each time a value in the expression changes.






18. DOC MADE UP






19. Relations which allow you to retrieve related records from the same table.






20. Dependency where determinant determines a list of values.






21. The conditional expession that is to be used to select particular data records from a larger set of records.






22. A query ( SQL statement ) that creates a new table and then creates records in it by coping records from an existing table.






23. A type of computer file system that stores all data in a single file.






24. A query that asks a question about the data stored in your tables and returns a results set in the form of a data sheet without changing the actual data in the table(s).






25. The components of a data abase i.e. tables - queries - forms - reports - pages - macros and modules.






26. A function such as sum - count or average that you use to include summary data in a report.






27. A table which is not only in 2NF but whose non-primary key fields are dependent only on the primary key and therefore have no dependence on (relationship to) any other non-primary key field in the table.






28. Data from a table - form - query which is displayed in a row-and-column format.






29. That structure which contains description of objects created by a user - such as base tables - views and constraints - as a part of a database.






30. When a relation is not just in Boyce-Codd Normal Form - but also contains at most one multivalued dependency.






31. a.k.a record






32. A query that copies data or changes data in some way. This includes append - delete - make-table and update queries.






33. All key attributes defined - attributes depend on key and no repeating groups.






34. The persons or things that a database table is about.






35. No Transitive Dependencies.






36. A section of a record containing data relating to one single characteristic of an entity; also called an attribute






37. A field in a table with unique values that although it is not the primary key - it could have been used as such.






38. When a table is not only in 1NF but each non key field is functionally dependent on the full primary key






39. A record as seen in the data sheet view.






40. The process of examining and analyzing data with a view to extracting patterns from it. It is usually done on data warehouses






41. A data type that is used for fields and calculations involving money






42. The DBMS language component used to create - alter and destroy databases and database objects i.e. schemas - tables - views - sequences - catalogs - indexes - and aliases.






43. Specialized engines designed specifically to store objects. Users can interact with objects only through designated methods.






44. A window that shows the design or structure of the database objects: tables - queries - forms - reports - macros and data access pages.






45. An association between two tables in which the primary key value of each record in the primary table corresponds to the value in the matching field or fields of one and only one record in the related table.






46. Functional dependency involving only non-key attributes.






47. This is an exact numeric data type that holds from 10^38 - 1 through 10^38 - 1.






48. A candidate key that coud have been the primary key but was not selected as such ; OR a field that is not the primary key but has been used for indexing nevertheless.






49. One or more fields whose values uniquely identify each record in a table.






50. A normalization which falls between 3NF and 4NF and involves the elimination of non-trivial dependencies