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 SQL clause that is used to enforce legal-values integrity






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






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






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






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






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






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






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






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






10. 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






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






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






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






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






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






16. A very popular relational data definition and manipulation language that is used in many relational DBMS's






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






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






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






20. A characteristic or property of an entity






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






22. The column on which two tables are joined






23. A characteristic or property of an entity






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






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






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






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






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






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






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






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






32. The field on which data are sorted






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






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






35. An index built on a single field






36. 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






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






38. A Characteristic or property of an entity






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






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






41. The portion of the system catalog that contains index information






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






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






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






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






46. The prevention of unauthorized access to a database






47. The field on which data are sorted






48. The SQL command that is used to change the structure of a table






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






50. 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