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






2. A question about the data stored in your tables - or a request to perform an action on the data. A query can bring together data from multiple tables to serve as the source of data for a form. report or data access page.






3. 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.






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






5. Table has no anomalies.






6. Attribute that determines the value of another attribute.






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






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






9. Knowingly violates one or more rules of normalization.






10. A relation that contains no multivalued attributes.






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






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






13. Candidate key selected for use.






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






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






16. 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.






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






18. 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.






19. 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.






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






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






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






23. The dominant database model






24. 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.






25. 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






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






27. 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.






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






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






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






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






32. 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.






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






34. Arrange the records in a view set in order according to a particular field






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






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






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






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






39. An MS Access tool that simplifies a task. For example - you can quickly create a complex expression with the Expression Builder.






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






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






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






43. DBMS (Database Management System) statements used to manage data (tables and other objects) within a database






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






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






46. A link between two or more tables.






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






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.k.a record






50. 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.







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