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






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






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






5. A rule in Access that data entered in a field must satisfy






6. A file containing a collection of compiled and optimized SQL statements that are available for future use






7. The part of an SQL SELECT command that indicates the columns to be included in the query results






8. The prevention of unauthorized access to a database






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






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






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






12. The most common form of a join






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






14. The query that is used to define the structure of a viewk






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






16. A characteristic or property of an entity






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






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






19. The field on which data are sorted






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






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






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






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






24. A collection of relations






25. 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






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






27. The field on which data are sorted






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






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






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






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






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






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






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






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






36. A punctuation mark - such as a semicolon - that separates pieces of data






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






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






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






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






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






42. A Characteristic or property of an entity






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






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






45. A characteristic or property of an entity






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






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






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






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






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