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 individual or group that is responsible for a database






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 prevention of unauthorized access to a database






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






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






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






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






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






9. An association between entities






10. 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






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






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






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






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






15. The plural of Criterion






16. A question the answer to which is found in the database






17. A word that is part of the SQL language






18. The SQL command that creates an index in a table






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






20. A characteristic or property of an entity






21. 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






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






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






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






25. 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






26. 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






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






28. 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






29. The relational algebra command used to select columns from a table






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






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






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






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






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






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






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






37. 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






38. 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






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






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






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






42. The prevention of unauthorized access to a database






43. The clause in a SQL CREATE TABLE or ALTER TABLE command that specifies referential integrity






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






45. 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






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






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






48. A collection of relations






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






50. 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