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 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






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






4. The part of an SQL statement that specifies which record to retrieve.






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






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






7. A self-describing collection of integrated tables. The tables are called integrated because they store data about the relationships between the rows of data.






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






9. 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.






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






11. No Transitive Dependencies.






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






13. The dominant database model






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






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






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






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






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






19. Attribute that determines the value of another attribute.






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






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






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






23. Dependency where determinant determines a list of values.






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






25. A link between two or more tables.






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






27. 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.






28. 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.






29. 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.






30. 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).






31. 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.






32. 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






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






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






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






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






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






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






39. 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.






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






41. 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






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






43. 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.






44. A database object that prints information formatted and organised according to your specifications.






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






46. 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






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






48. An association between two tables in which several records in one table can relate to 0 - 1 or many records in the other table.






49. Functional dependency involving only non-key attributes.






50. DOC MADE UP