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 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






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






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






4. A characteristic or property of an entity






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






6. The column on which two tables are joined






7. The field on which data are sorted






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






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






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






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






12. An association between entities






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






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






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






16. What type of an operator is >= ?






17. The most common form of a join






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






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






20. The prevention of unauthorized access to a database






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






22. A characteristic or property of an entity






23. An association between entities






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






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






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






27. 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






28. 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






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






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






31. A characteristic or property of an entity






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






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






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






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






36. A collection of relations






37. What type of an operator is >= ?






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






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






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






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






42. An association between entities






43. The plural of Criterion






44. A rule in Access that data entered in a field must satisfy






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






46. A column (attribute) or collection of columns in a table whose value is required either to match the value of a primary key in a table or to be null






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






48. 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






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






50. The plural of Criterion