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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 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






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






3. 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






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






5. A combination of two tables consisting of all records that are in either table






6. A collection of relations






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






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






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






10. An association between entities






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






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






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






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






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






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






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






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






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






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






22. A source of data - usually stored in hidden database tables - about the types of entities or attributes and relationships in a database






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






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






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






26. The column on which two tables are joined






27. What type of an operator is >= ?






28. The process of creating collections of records that share some common characteristics






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






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






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






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






33. The process of creating collections of records that share some common characteristics






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






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






36. A Characteristic or property of an entity






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






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






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






41. A query that deletes all records that satisfy some criterion






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






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






44. An action that automatically occurs in response to an associated database operation such as INSERT or UPDATE or DELETE






45. 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






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






47. 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.






48. The area of memory in MySQL that stores the most recently entered command






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 portion of the system catalog that contains view information







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