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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. The actual pieces of facts that are stored in the fields in a database table.






2. 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.






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






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






5. 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






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






7. 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






8. Functional dependency involving only non-key attributes.






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






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






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






13. A relation that contains no multivalued attributes.






14. 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.






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






16. A link between two or more tables.






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






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






19. 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.






20. Table has no anomalies.






21. No partial functional-dependencies.






22. No Transitive Dependencies.






23. a.k.a record






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






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






26. Knowingly violates one or more rules of normalization.






27. 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






28. A DBMS created by Microsoft - it is a collection of data and objects - such as tables - queries - or forms - related to a particular topic or purpose.






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






30. 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.






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






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






33. Attribute that determines the value of another attribute.






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






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






36. 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.






37. A relational database management system from Microsoft that combines the relational MS Jet Database Engine with a graphical user interface and software-development tools.






38. Data about data.






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






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






41. A central repository for databases across an entire enterprise.






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






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






44. No multiple multi-valued dependencies.






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






46. A Key composed of more than one attribute.






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






48. 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.






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






50. DOC MADE UP







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