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






2. 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.






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






4. Dependency where determinant determines a list of values.






5. 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.






6. Data about data.






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






8. 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.






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






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






11. A relation that contains no multivalued attributes.






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






14. 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.






15. A link between two or more tables.






16. The program which is used to organize - access and manage the data in a database - Creates - processes - and administers databases.






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






18. Attribute that determines the value of another attribute.






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






20. 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.






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






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






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






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






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






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






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






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






30. No Transitive Dependencies.






31. Candidate key selected for use.






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






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






34. 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






35. 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).






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






37. 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 of one and only one record in the related table.






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






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






40. 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.






41. 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.






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






43. A Key composed of more than one attribute.






44. 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.






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






46. 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.






47. 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






48. 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






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






50. A graphical representation of all entity relationships (Data Model)