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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 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






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






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






4. A column (attribute) or collection of columns in a table whose value is required either to match the value of a primary key in a table or to be null






5. An index built on a single field






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






7. The SQL statement that is used to grant different types of privileges to users of a dataabase






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






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






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






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






12. A characteristic or property of an entity






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






14. A collection of relations






15. The field on which data are sorted






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






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






18. An association between entities






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






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






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






22. 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






23. The part of an SQL SELECT command that indicates the condition rows must satisfy to be displayed in the query results






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






25. The plural of Criterion






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






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






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






29. 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.






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






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






32. 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






33. The SQL command that drops (deletes) a table from a database






34. A characteristic or property of an entity






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






36. The most common form of a join






37. A field whose value is computed from other fields in the 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. When sorting on two fields - the less important field






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






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






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






43. A query in SQL that appears within another






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






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






46. A characteristic or property of an entity






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






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






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






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







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