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. An index built on a single field






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






3. The most common form of a join






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






5. A Characteristic or property of an entity






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






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






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






9. The column on which two tables are joined






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






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






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






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






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






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






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






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






18. The portion of the system catalog that contains table information






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






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






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






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






23. The prevention of unauthorized access to a database






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






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






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






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






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






31. A word that is part of the SQL language






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






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






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






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






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






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






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






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






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






41. A characteristic or property of an entity






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






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






44. The SQL command used to delete a table






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






46. 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






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






48. 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






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






50. 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