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






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






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






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






5. The SQL command used to delete a table






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






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






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






9. An index built on a single field






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






11. A Characteristic or property of an entity






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






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






14. The column on which two tables are joined






15. An association between entities






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






17. A characteristic or property of an entity






18. 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






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






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






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






22. A characteristic or property of an entity






23. A Characteristic or property of an entity






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






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






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






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






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






29. An association between entities






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






31. A collection of relations






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






33. An access tool that provides documentation about the objects in a database






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






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






36. An index built on a single field






37. A source of data - usually stored in hidden database tables - about the types of entities or attributes and relationships in 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 SQL command that is used to change the structure of a table






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






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






42. The query that is used to define the structure of a viewk






43. 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






44. The prevention of unauthorized access to a database






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






46. An index built on more than one field






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






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






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






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