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 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






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






3. 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






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






5. 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






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






7. A Characteristic or property of an entity






8. The rule that no column (attribute) that is part of the primary key may accept null values






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






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






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






12. 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






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 SQL command that creates an index in a table






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






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






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






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






19. 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






20. An association between entities






21. A characteristic or property of an entity






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






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






24. Two tables are union compatible if they have the same number of fields and if their corresponding fields have identical data types






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






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






28. A characteristic or property of an entity






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






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






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






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






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






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






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






36. 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






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






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






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






40. A collection of relations






41. 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






42. A computer that provides services to the clients in a client/server system






43. 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






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






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






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






47. 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






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






49. The prevention of unauthorized access to a database






50. A Characteristic or property of an entity