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






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






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






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






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






6. Two tables are union compatible if they have the same number of fields and if their corresponding fields have identical data types






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






8. 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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






26. A combination of criteria in which at least on the criteria must be true






27. A collection of relations






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






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






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






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






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






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






34. 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






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






36. When comparing tables the set of all rows that are in the first table but that are not in the second table






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






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






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






40. The rule that if table A contains a foreign key that matches the primary key of table B then the value of this foreign key must either match the value of the primary key for some row in table B or be null






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






42. A collection of relations






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






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






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






46. 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






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






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






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






50. An association between entities







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