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 file that relates key values to records that contain those key values






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






3. 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






4. 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






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






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






7. The SQL clause that is used in a CREATE TABLE or ALTER TABLE command to set a table's primary key field(s)






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






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






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






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






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






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






14. An action that automatically occurs in response to an associated database operation such as INSERT or UPDATE or DELETE






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






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






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






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






19. The part of an SQL SELECT command that indicates grouping






20. The SQL command used to describe the layout of a table. The word table is followed by the name of the table to be created and then by the names and data types of the column (fields) that comprise the table






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






22. An index built on a single field






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






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






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






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






27. In relational algebra the operation in which two tables are connected on the basis of common data.






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






29. An access query that creates a table using the results of a query






30. 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






31. 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






32. Combination of criteria in which both criteria must be true






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






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






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






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






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






38. 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






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






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






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






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






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






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






45. A collection of relations






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






47. 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






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






49. The prevention of unauthorized access to a database






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