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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. The prevention of unauthorized access to a database






2. The field on which data are sorted






3. The SQL command used to delete a table






4. The rule that if table A contains a foreign key that matches the primary key of table B then the value of this foreign key must either match the value of the primary key for some row in table B or be null






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






6. 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






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






8. The prevention of unauthorized access to a database






9. A characteristic or property of an entity






10. A file used to store data about a single entity. Such a file can be thought of as a table.






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






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






13. The portion of the system catalog the contains column information






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






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






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






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






18. 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






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






20. The plural of Criterion






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






22. 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






23. The SQL statement that is used to grant different types of privileges to users of a dataabase






24. A collection of relations






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






26. More than one entry at a single location in a table






27. The part of an SQL SELECT command that indicates a sort order






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






29. The part of an SQL SELECT command that restricts the groups to be displayed






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






31. An association between entities






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






33. When comparing tables an intersection is a new table containing all rows that are in both original tables






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






35. A characteristic or property of an entity






36. The portion of the system catalog that contains view information






37. A source of data - usually stored in hidden database tables - about the types of entities or attributes and relationships in a database






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






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






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






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






42. The most common form of a join






43. A collection of relations






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






45. More than one entry at a single location in a table






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






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






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






49. A computer that provides services to the clients in a client/server system






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







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Can you answer 50 questions in 15 minutes?


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