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 rule in Access that data entered in a field must satisfy






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






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






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






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






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






7. An association between entities






8. To indicate the table (relation) of which a given column (attribute) is a part by preceding the column name with the table name.






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






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






11. The prevention of unauthorized access to a database






12. A collection of relations






13. A characteristic or property of an entity






14. 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






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






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






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






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






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






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






21. 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






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






23. 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.






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






25. To indicate the table (relation) of which a given column (attribute) is a part by preceding the column name with the table name.






26. The plural of Criterion






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






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






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






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






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






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






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






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






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






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






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






39. 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






40. 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






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






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






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






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






45. A source of data - usually stored in hidden database tables - about the types of entities or attributes and relationships in a database






46. A collection of relations






47. The most common form of a join






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






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






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