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. The most common form of a join






2. A two-dimensional table-style collection of data in which all entries are single-valued - each column has a distinct name and all the values in a column are values of the attribute that is identified by the column name - and the order of the columns






3. A data manipulation language for relational databases in which users indicate the action to be taken by completing on-screen forms






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






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






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






7. An instruction by a user that directs a database to perform a certain way






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






9. 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.






10. 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






11. A collection of relations






12. 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






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






14. The plural of Criterion






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






16. 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






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






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






19. The prevention of unauthorized access to a database






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






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






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






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






24. The SQL statement that is used to revoke privileges from users of a database






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






26. A collection of relations






27. A characteristic or property of an entity






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






29. The column on which two tables are joined






30. A Characteristic or property of an entity






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






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






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






34. The part of an SQL SELECT command that indicates grouping






35. A characteristic or property of an entity






36. A characteristic or property of an entity






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






38. A two-dimensional table-style collection of data in which all entries are single-valued - each column has a distinct name and all the values in a column are values of the attribute that is identified by the column name - and the order of the columns






39. The table obtained by concatenating every row in the first table with every row in the second table






40. A collection of relations






41. 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.






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






43. A file that relates key values to records that contain those key values






44. 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






45. What type of an operator is >= ?






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






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






48. An association between entities






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






50. A data manipulation language for relational databases in which users indicate the action to be taken by completing on-screen forms