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






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






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






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






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






6. The most common form of a join






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






8. A condition that involves only a single field and a single value






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






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






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






12. The SQL clause that is used in a CREATE TABLE or ALTER TABLE command to set a table's primary key field(s)






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






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






15. The rule that no column (attribute) that is part of the primary key may accept null values






16. The plural of Criterion






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






18. An association between entities






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






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






21. A characteristic or property of an entity






22. 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






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






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






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






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






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






28. An update option in which related records are automatically updated






29. The table obtained by concatenating every row in the first table with every row in the second table






30. The SQL clause that is used to enforce legal-values integrity






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






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






33. The prevention of unauthorized access to a database






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






35. A characteristic or property of an entity






36. 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






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






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






39. 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






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






41. 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






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






43. A computer that provides services to the clients in a client/server system






44. The SQL command that is used to change the structure of a table






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






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






47. A collection of relations






48. A characteristic or property of an entity






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






50. 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







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