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. 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.






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






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






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






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






6. No Transitive Dependencies.






7. 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.






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






9. Two or more controls that can be treated as one unit while designing a form or report. You can select the group instead of selecting each individual control as you are arranging controls or assigning properties.






10. Functional dependency involving only non-key attributes.






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






12. 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






13. Arrange the records in a view set in order according to a particular field






14. 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.






15. A data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships: each parent can have many children - but each child has only one parent






16. 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.






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






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






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






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






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






22. a.k.a record






23. 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.






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






25. A database object that stores data in records and fields. The data is usually about a particular category of things.






26. A database computer language designed for the retrieval and management of data in relational database management systems (RDBMS) - database schema creation and modification - and database object access control management.






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






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






29. A collection of fields that together describe one entity.






30. A primary key that is comprised of more than one field.






31. A Key composed of more than one attribute.






32. Contents of a Database: Tables of user data - Metadata - Indexes - Stored Procedures - _______ - Security Data - Backup/Recovery Data






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






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






35. A relation that contains no multivalued attributes.






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






37. Knowingly violates one or more rules of normalization.






38. All determinants are candidate keys.






39. 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.






40. 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.






41. Groups of database commands which are to be treated as a single atomic event.






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






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






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






45. Candidate key selected for use.






46. 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






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






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






49. The dominant database model






50. Dependency where determinant determines a list of values.