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






2. 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.






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






4. A link between two or more tables.






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






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






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






8. 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.






9. Data about data.






10. Table has no anomalies.






11. A key that consists of 2 or more attributes that uniquely identify an entity occurrence.






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






13. 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






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






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






16. 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).






17. DOC MADE UP






18. 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.






19. A relation that contains no multivalued attributes.






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






21. Dependency where determinant determines a list of values.






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






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






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






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






27. a.k.a record






28. All key attributes defined - attributes depend on key and no repeating groups.






29. 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.






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






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






32. 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.






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






34. Attribute that determines the value of another attribute.






35. 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






36. 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.






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






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






39. 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.






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






41. 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.






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






43. Knowingly violates one or more rules of normalization.






44. 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.






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






46. No multiple multi-valued dependencies.






47. That structure which contains description of objects created by a user - such as base tables - views and constraints - as a part of a database.






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






49. 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






50. Candidate key selected for use.