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






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






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






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






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






6. Two tables are union compatible if they have the same number of fields and if their corresponding fields have identical data types






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






8. The prevention of unauthorized access to a database






9. An access tool that provides documentation about the objects in a database






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






11. 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






12. The part of an SQL SELECT command that indicates the tables in the query






13. A characteristic or property of an entity






14. 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






15. A collection of relations






16. What type of an operator is >= ?






17. A Characteristic or property of an entity






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 query that deletes all records that satisfy some criterion






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






21. The field on which data are sorted






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






23. The SQL command that creates an index in a table






24. An index built on a single field






25. An association between entities






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






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






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






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






30. 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






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






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






33. The part of an SQL SELECT command that indicates the columns to be included in the query results






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






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






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






37. A word that is part of the SQL language






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






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






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






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






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






43. A condition that involves only a single field and a single value






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






45. 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.






46. The individual who is responsible for a database or the head of database administration






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






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






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






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