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






2. An index built on a single field






3. The SQL command that creates an index in a table






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






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






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






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






8. The relational algebra command for performing the intersection of two tables






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






10. An index built on more than one field






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






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






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






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






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






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






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






18. 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






19. 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






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






21. A collection of actions in Access that are performed in response to an associated database operation - such as inserting or updating or deleting records.






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






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






24. 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






25. A characteristic or property of an entity






26. An association between entities






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






28. A punctuation mark - such as a semicolon - that separates pieces of data






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






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






31. A Characteristic or property of an entity






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






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






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






35. 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.






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






37. 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






38. A collection of relations






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






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






41. 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






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






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






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






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






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






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






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






49. 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






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