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






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






3. An index built on more than one field






4. The process of creating collections of records that share some common characteristics






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






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






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






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






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






10. 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






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






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






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






14. A combination of two tables consisting of all records that are in either table






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






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






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






18. A characteristic or property of an entity






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






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






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






22. The process of creating collections of records that share some common characteristics






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






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






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






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






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






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






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






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






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






32. An application program's or an individual user's picture of a database






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






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






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






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






37. A characteristic or property of an entity






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






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






40. 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.






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






42. 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






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






44. The rule that if table A contains a foreign key that matches the primary key of table B then the value of this foreign key must either match the value of the primary key for some row in table B or be null






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






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






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






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






49. 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






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