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 field whose value is computed from other fields in the database






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






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






4. 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






5. A rule in Access that data entered in a field must satisfy






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






7. The plural of Criterion






8. An index built on more than one field






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






10. A Characteristic or property of an entity






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






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






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






14. A characteristic or property of an entity






15. A file containing a collection of compiled and optimized SQL statements that are available for future use






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






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






18. A structure that can store information about multiple types of entities - the attributes of these entities and the relationships among those entities






19. 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






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






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






22. 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.






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






24. A query in SQL that appears within another






25. The SQL command used to describe the layout of a table. The word table is followed by the name of the table to be created and then by the names and data types of the column (fields) that comprise the table






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






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






28. When comparing tables the set of all rows that are in the first table but that are not in the second table






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






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






31. A Characteristic or property of an entity






32. A collection of relations






33. The prevention of unauthorized access to a database






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






35. 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.






36. The property that lets you change the structure of a database without requiring you to change the programs that access the database






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






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






39. The form of a join in which all records appear - even if they don't match






40. 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






41. The most common form of a join






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






43. The most common form of a join






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






45. The prevention of unauthorized access to a database






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






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






48. An association between entities






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






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