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






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






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






4. The clause in a SQL CREATE TABLE or ALTER TABLE command that specifies referential integrity






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






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






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






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






9. The SQL command used to add new data to a table






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






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






12. 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






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






14. An index built on a single field






15. 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






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






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






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






19. 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.






20. A characteristic or property of an entity






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






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. 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






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






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






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






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






28. A characteristic or property of an entity






29. 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.






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






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






32. A Characteristic or property of an entity






33. An association between entities






34. The query that is used to define the structure of a viewk






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






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






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






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






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






40. The most common form of a join






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






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






44. 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






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






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






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






48. An index built on more than one field






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






50. The column on which two tables are joined