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 relational algebra command to select rows from a table






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






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






4. The part of an SQL SELECT command that indicates a sort order






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






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






7. The SQL statement that is used to grant different types of privileges to users of a dataabase






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






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






10. The prevention of unauthorized access to a database






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






12. A data manipulation language for relational databases in which users indicate the action to be taken by completing on-screen forms






13. An index built on a single field






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






15. 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






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






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






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






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






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






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






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






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






24. 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






25. The column on which two tables are joined






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






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






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






29. 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






30. The plural of Criterion






31. The relational algebra command that combines tables and searches for rows in the first table that match all rows in the second table






32. The prevention of unauthorized access to a database






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






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






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






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






37. The SQL command used to delete a table






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






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






40. The property that no record can exist in the database with a value in a field other than a legal value






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






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






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






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






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






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






47. 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.






48. The portion of the system catalog the contains column information






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






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