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






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






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






4. A collection of relations






5. A Characteristic or property of an entity






6. 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






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






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






9. A statement the can be either true or false. Also called a condition






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






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






12. A punctuation mark - such as a semicolon - that separates pieces of data






13. The SQL command used to delete a table






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






15. An association between entities






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






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






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






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






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






21. A collection of actions in Access that are performed in response to an associated database operation - such as inserting or updating or deleting records.






22. An action that automatically occurs in response to an associated database operation such as INSERT or UPDATE or DELETE






23. The prevention of unauthorized access to a database






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






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






26. The plural of Criterion






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






28. An index built on more than one field






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






30. A characteristic or property of an entity






31. The SQL command that drops (deletes) and index from a table






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






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






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






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






36. A collection of relations






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






38. 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






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






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






41. A view that consists of a subset of the rows and columns in a table






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






43. A query in SQL that appears within another






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






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






46. The combination of two or more rows in an operation - such as a join - or the combination of two or more columns for a primary key field to uniquely identify a given row in a table






47. 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






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






49. A Characteristic or property of an entity






50. The area of memory in MySQL that stores the most recently entered command