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. DBMS (Database Management System) statements used to manage data (tables and other objects) within a database






2. A combination of attributes that can be used to uniquely identify a database record. Candidate keys are a special subset of super keys that do not have any extraneous information in them






3. 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 of0 - 1 - or many records in the related table.






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






5. A value that is automatically entered in a field or control when you add a new record.






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






7. 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.






8. A field data type that automatically stores a unique number for each record as it is added to a table.






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






10. All determinants are candidate keys.






11. 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.






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






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






14. A way of looking at a database object - usually looking at the design or at the contents/results






15. A relation that contains no multivalued attributes.






16. A query that displays a summary calculation - such as an average or a sum - for values in a table or tables. A totals query is not a seperate kind of query; rather it extends the flexibility of select queries.






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






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






19. 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).






20. No partial functional-dependencies.






21. Table has no anomalies.






22. The horizontal bar at the top of a column. You can click a column selector to select the entire column in the query design grid or the filter design grid






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






24. 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.






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






26. A window that displays the SQL statement for the current query or is used to create a SQL specific query. When you create a query in design view - Access constructs the SQL equivalent in the SQL view.






27. A database object on which you place controls for entering - displaying and editing records in a table.






28. One (or more fields) in a table that refer to the primary key in another table.






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






30. A query that removes records which match the criteria you specify from one or more tables






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






32. Attribute that determines the value of another attribute.






33. An attribute utilized to sort and/or identify data in some manner. Each table should have a primary key which uniquely identifies records.






34. A value that may be assigned to an attribute when no other value applies or when the applicable value is unknown.






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






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






37. An action query that adds the records in a query's result set to the end of an existing table.






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






39. Candidate key selected for use.






40. A characteristic of the items in a database i.e. a field






41. a.k.a record






42. A control - also called an edit field - used on a form - report or data access page to display text or accept data entry.It can have a label attached to it.






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






44. 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.






45. 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.






46. This is a property of data which - when satisfied - requires every value of one field (attribute) of a table to exist as a value of another field in another related table.






47. No Transitive Dependencies.






48. An abstract model that documents and organizes the business data for communication between team members and is used as a plan for developing applications - specifically how data is stored and accessed.






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






50. Knowing the value of one attribute you can determine the value of another attribute.