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. 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






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






3. An association/link established between common fields in two different tables. A relationship can be one-to-one - many-to-many or more usually one-to-many.






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






5. Candidate key selected for use.






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






7. A graphical representation of entities and their relationship to each other - typically used in computing in regard to the organization of data within databases or information systems






8. 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.






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






10. 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.






11. a.k.a record






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






13. A control that indicates whether an option is selected or not. A tick mark appears in the box when the option is selected.






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






15. The process of organizing data to minimize redundancy and produce smaller - well-structured relations/tables.






16. No Transitive Dependencies.






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






18. A relation that contains no multivalued attributes.






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






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






21. 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.






22. Attribute that determines the value of another attribute.






23. The window that appears when you open an Access database or an Access project. It displays the commands for creating new database objects and opening and manipulating existing objects.






24. No partial functional-dependencies.






25. A graphical representation of any portion of a database scheme.






26. An organised pool of related data files which can be easily accessed and managed and that may be used by a number of different application programs






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






28. 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.






29. 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.






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






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






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






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






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






35. 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.






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






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






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






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






40. 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.






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






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






43. A location within a database table that stores one particular type of data i.e. a field






44. 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






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






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






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






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






49. 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.






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