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 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.






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






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






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






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






7. 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.






8. No multiple multi-valued dependencies.






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






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






11. Knowingly violates one or more rules of normalization.






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






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






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






15. The dominant database model






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






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






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






19. 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.






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






22. 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.






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






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






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






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






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






29. Guidelines set in place to ensure the trustworthiness of data over its entire life cycle.






30. 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.






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






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






33. 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.






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






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






36. 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






37. Attribute that determines the value of another attribute.






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






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






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






41. Data about data.






42. 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.






43. Stored procedures that may be configured to automatically execute (fire) when certain events take place.






44. 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






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






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






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






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. 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.






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