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. When sorting on two fields - the less important field






2. 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.






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






4. A characteristic or property of an entity






5. The process of arranging rows in a table or results of a query in a particular order






6. A delete option in which related records are automatically deleted






7. A query that deletes all records that satisfy some criterion






8. When sorting on two fields - the less important field






9. A graphic model for database design in which entities are represented as rectangles and relationships are represented as either arrows or diamonds connected to the entities they relate






10. Two tables are union compatible if they have the same number of fields and if their corresponding fields have identical data types






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






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






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






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






15. What type of an operator is >= ?






16. In relational algebra the operation in which two tables are connected on the basis of common data.






17. When sorting on two fields - the less important field






18. A database has integrity if the data in it satisfies all established integrity constraints






19. The SQL command that drops (deletes) a table from a database






20. A word that is part of the SQL language






21. A query in SQL that appears within another






22. A message in Access that is displayed when a validation rule is violated






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






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






25. 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






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






27. A question the answer to which is found in the database






28. In an Access query the line drawn between tables to indicate how they are related






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






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






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






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






33. The field or fields on which an index is built






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






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






36. The rule that no column (attribute) that is part of the primary key may accept null values






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






38. When sorting on two fields this is the more important field






39. A Characteristic or property of an entity






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






41. A graphic model for database design in which entities are represented as rectangles and relationships are represented as either arrows or diamonds connected to the entities they relate






42. An application program's or an individual user's picture of a database






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






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






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






46. An index built on a single field






47. In relational algebra the operation in which two tables are connected on the basis of common data.






48. A relationship between two entities in which each occurrence of the first entity is related to many occurrences of the second entity and each occurrence of the second entity is related to or at most one occurrence of the first entity






49. Additional information required by an action in a data macro to complete the action






50. A database has integrity if the data in it satisfies all established integrity constraints