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






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






3. The SQL clause that is used to enforce legal-values integrity






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. The SQL command used to delete a table






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






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






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






9. Additional information required by an action in a data macro to complete the action






10. A word that is part of the SQL language






11. A characteristic or property of an entity






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






13. An association between entities






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






15. A query that deletes all records that satisfy some criterion






16. The field on which data are sorted






17. A file used to store data about a single entity. Such a file can be thought of as a table.






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






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






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






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






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






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






24. A query that deletes all records that satisfy some criterion






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






26. A Characteristic or property of an entity






27. The prevention of unauthorized access to a database






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






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






30. 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






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






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






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






34. 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






35. The plural of Criterion






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






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






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






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






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






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






42. 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






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






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. The most common form of a join






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






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






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






49. The plural of Criterion






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