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 collection of relations






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






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






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






5. The field or fields on which an index is built






6. The SQL command used to make changes to existing table data






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






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






9. An association between entities






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






11. The field on which data are sorted






12. A characteristic or property of an entity






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 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






15. A Characteristic or property of an entity






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






17. 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






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






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






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






21. A characteristic or property of an entity






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






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






24. A question the answer to which is found in the database






25. An index built on more than one field






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






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






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






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






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






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






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






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






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






35. A Characteristic or property of an entity






36. A Characteristic or property of an entity






37. The prevention of unauthorized access to a database






38. 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






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






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






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






42. The portion of the system catalog that contains index information






43. 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






44. The plural of Criterion






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






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






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






48. A word that is part of the SQL language






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






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