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 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






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






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






4. A Characteristic or property of an entity






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






6. Duplication of data or the storing of the same data in more than one place.






7. The part of an SQL SELECT command that indicates the tables in the query






8. A Characteristic or property of an entity






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






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






11. A delete option in which related records are automatically deleted






12. A query in SQL that appears within another






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






14. A relational data manipulation language in which new tables are created from existing tables through the use of a set of operations






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






16. The relational algebra command for performing the intersection of two tables






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






18. The field or fields on which an index is built






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






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






21. A characteristic or property of an entity






22. 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






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






24. 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






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






26. The plural of Criterion






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






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






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






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






31. 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






32. The prevention of unauthorized access to a database






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






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






35. 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






36. A Characteristic or property of an entity






37. A characteristic or property of an entity






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






39. A statement the can be either true or false. Also called a condition






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






41. The SQL command used to add new data to a table






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






43. An index built on more than one field






44. The prevention of unauthorized access to a database






45. An application program's or an individual user's picture of a database






46. A word that is part of the SQL language






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






48. A minimal collection of columns (attributes) in a table on which all columns are functionally dependent and that is chosen as the main direct-access vehicle to individual rows.






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






50. An index built on a single field