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 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






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






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






5. The most common form of a join






6. 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






7. 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






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






9. The field on which data are sorted






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






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






12. 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






13. A characteristic or property of an entity






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






15. 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.






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






17. The prevention of unauthorized access to a database






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






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






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






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






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






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






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






25. The most common form of a join






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






27. An association between entities






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






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






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






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






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






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






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






35. 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






36. 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






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






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






39. A Characteristic or property of an entity






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






41. 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






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






43. 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






44. Additional information required by an action in a data macro to complete the action






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






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






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






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






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






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