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






2. The column on which two tables are joined






3. An index built on more than one field






4. 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






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






6. A file that relates key values to records that contain those key values






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






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






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






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






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






12. 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






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






14. The SQL command used to delete a table






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






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






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






18. The SQL command that drops (deletes) and index from a table






19. A collection of relations






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






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






22. 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






23. A word that is part of the SQL language






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






25. The combination of two or more rows in an operation - such as a join - or the combination of two or more columns for a primary key field to uniquely identify a given row in a table






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






27. 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






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






29. 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






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






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






32. The combination of two or more rows in an operation - such as a join - or the combination of two or more columns for a primary key field to uniquely identify a given row in a table






33. 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






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






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






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






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






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






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






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






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






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






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






44. 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






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






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






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






48. 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






49. An index built on a single field






50. The column on which two tables are joined