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 process of creating collections of records that share some common characteristics






2. In Access the query that updates the contents of a table






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






4. The column on which two tables are joined






5. 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






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






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






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






9. An index built on a single field






10. A characteristic or property of an entity






11. The prevention of unauthorized access to a database






12. The portion of the system catalog that contains view information






13. A very popular relational data definition and manipulation language that is used in many relational DBMS's






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






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






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






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






18. An index built on a single field






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






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






21. The portion of the system catalog the contains column information






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






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






24. 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






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






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






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






28. 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






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






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






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






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






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






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






35. The SQL command that is used to change the structure of a table






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






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






38. A word that is part of the SQL language






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






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






41. The SQL command used to delete a table






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






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






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






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






46. What type of an operator is >= ?






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






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






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






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