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. 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.






2. A relationship between two entities in which each occurrence of the first entity is related to many occurrences of the second entity and each occurrence of the second entity is related to or at most one occurrence of the first entity






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






4. The column on which two tables are joined






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






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






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






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






9. 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






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






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






12. The column on which two tables are joined






13. The most common form of a join






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






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






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






17. The field on which data are sorted






18. The relational algebra command that combines tables and searches for rows in the first table that match all rows in the second table






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






20. 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






21. 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






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






23. A data value meaning "unknown" or "not applicable"






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






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






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






27. A structure that contains information about the objects (tables or columns or indexes or views and so on) in a database






28. An index built on more than one field






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






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






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






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






33. A word that is part of the SQL language






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






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






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






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






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






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






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






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






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






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






44. The SQL command used to add new data to a table






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






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






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






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






49. 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






50. The field on which data are sorted