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 part of an SQL SELECT command that indicates the tables in the query






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






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






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






5. 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






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






7. 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.






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






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






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






11. A query in SQL that appears within another






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






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






14. 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.






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






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






17. The SQL statement that is used to revoke privileges from users of a database






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






19. A collection of relations






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






21. 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






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






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






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






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






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






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






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






29. What type of an operator is >= ?






30. 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.






31. A Characteristic or property of an entity






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






33. In an Access query the line drawn between tables to indicate how they are related






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






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






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






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






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






39. An instruction by a user that directs a database to perform a certain way






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






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






42. 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






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






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






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






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






47. 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






48. In an Access query the line drawn between tables to indicate how they are related






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






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