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 portion of the system catalog that contains table information






2. The most common form of a join






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






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






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






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






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






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






9. A view that consists of a subset of the rows and columns in a table






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






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






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






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






14. The SQL command used to delete a table






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






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






17. 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






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






19. A condition that involves only a single field and a single value






20. The relational algebra command for performing the difference of two tables






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






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






23. A word that is part of the SQL language






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






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






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






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






28. The prevention of unauthorized access to a database






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






30. The plural of Criterion






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






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






33. 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






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






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






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






37. The prevention of unauthorized access to a database






38. A minimal collection of columns (attributes) in a table on which all columns are functionally dependent and that is chosen as the main direct-access vehicle to individual rows.






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






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






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






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






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






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






45. 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






46. A file containing a collection of compiled and optimized SQL statements that are available for future use






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






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






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






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