Test your basic knowledge |

Database Fundamentals

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 function used to calculate the number of entries and the sum or average of all the entries in a given column or the largest or smallest of the entries in a given column






2. A field whose value is computed from other fields in the database






3. An update option in which related records are automatically updated






4. A query in SQL that appears within another






5. A structure that satisfies the properties required to be a relation with the exception of allowing repeating groups






6. A collection of relations






7. The property that no record can exist in the database with a value in a field other than a legal value






8. Combination of criteria in which both criteria must be true






9. To indicate the table (relation) of which a given column (attribute) is a part by preceding the column name with the table name.






10. A combination of criteria in which at least on the criteria must be true






11. Two simple criteria in a query the are combined with the AND or OR operators






12. The portion of the system catalog that contains index information






13. The relational algebra command for performing the difference of two tables






14. In Access the query that updates the contents of a table






15. Combination of criteria in which both criteria must be true






16. The part of an SQL SELECT command that indicates the columns to be included in the query results






17. An association between entities






18. The SQL command that creates an index in a table






19. The individual or group that is responsible for a database






20. The part of an SQL SELECT command that indicates the condition rows must satisfy to be displayed in the query results






21. A data value meaning "unknown" or "not applicable"






22. A rule that must be followed by data in a database






23. The relational algebra command to select rows from a table






24. A field whose value is computed from other fields in the database






25. The process of creating collections of records that share some common characteristics






26. An access query that creates a table using the results of a query






27. A combination of two tables consisting of all records that are in either table






28. The portion of the Query Design window in Access where you enter fields or criteria or sort orders and so on






29. A collection of relations






30. The prevention of unauthorized access to a database






31. A relational data manipulation language in which new tables are created from existing tables through the use of a set of operations






32. A minimal collection of columns (attributes) in a table on which all columns are functionally dependent and that is chosen as the main direct-access vehicle to individual rows.






33. The SQL clause that is used to enforce legal-values integrity






34. A characteristic or property of an entity






35. A screen object you use to maintain or view and print data from a database






36. The relational algebra command used to select columns from a table






37. The portion of the system catalog that contains table information






38. Duplication of data or the storing of the same data in more than one place.






39. A relational data manipulation language in which new tables are created from existing tables through the use of a set of operations






40. The SQL command used to delete a table






41. A program or a collection of programs through which users interact with a database






42. The process of determining the content and structure of data in a database in order to support some activity on behalf of a user or group of users






43. To indicate the table (relation) of which a given column (attribute) is a part by preceding the column name with the table name.






44. The individual who is responsible for a database or the head of database administration






45. An index built on a single field






46. The prevention of unauthorized access to a database






47. An action that automatically occurs in response to an associated database operation such as INSERT or UPDATE or DELETE






48. A structure that contains information about the objects (tables or columns or indexes or views and so on) in a database






49. A person or place or object or event or idea for which you want to store and process data






50. The SQL command used to make changes to existing table data