Test your basic knowledge |

Database Management

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 DBMS language component used to create - alter and destroy databases and database objects i.e. schemas - tables - views - sequences - catalogs - indexes - and aliases.






2. A candidate key that coud have been the primary key but was not selected as such ; OR a field that is not the primary key but has been used for indexing nevertheless.






3. To modify a database - or the files associated with the database.






4. DBMS (Database Management System) statements used to manage data (tables and other objects) within a database






5. A primary key that is comprised of more than one field.






6. A window that shows the design or structure of the database objects: tables - queries - forms - reports - macros and data access pages.






7. This is a property of data which - when satisfied - requires every value of one field (attribute) of a table to exist as a value of another field in another related table.






8. Arrange the records in a view set in order according to a particular field






9. When a relation is not just in Boyce-Codd Normal Form - but also contains at most one multivalued dependency.






10. One or more fields whose values uniquely identify each record in a table.






11. A location within a database table that stores one particular type of data i.e. a field






12. No multiple multi-valued dependencies.






13. This is an exact numeric data type that holds from 10^38 - 1 through 10^38 - 1.






14. A graphical representation of entities and their relationship to each other - typically used in computing in regard to the organization of data within databases or information systems






15. Contents of a Database: Tables of user data - Metadata - Indexes - Stored Procedures - _______ - Security Data - Backup/Recovery Data






16. A normalization which falls between 3NF and 4NF and involves the elimination of non-trivial dependencies






17. An association between two tables in which the primary key value of each record in the primary table corresponds to the value in the matching field or fields of one and only one record in the related table.






18. A query that displays a summary calculation - such as an average or a sum - for values in a table or tables. A totals query is not a seperate kind of query; rather it extends the flexibility of select queries.






19. A relation that contains no multivalued attributes.






20. A value that may be assigned to an attribute when no other value applies or when the applicable value is unknown.






21. Table has no anomalies.






22. The dominant database model






23. A field data type that automatically stores a unique number for each record as it is added to a table.






24. An attribute utilized to sort and/or identify data in some manner. Each table should have a primary key which uniquely identifies records.






25. A database object on which you place controls for entering - displaying and editing records in a table.






26. A self-describing collection of integrated tables. The tables are called integrated because they store data about the relationships between the rows of data.






27. A query ( SQL statement ) that creates a new table and then creates records in it by coping records from an existing table.






28. A field in a table with unique values that although it is not the primary key - it could have been used as such.






29. A relational database management system from Microsoft that combines the relational MS Jet Database Engine with a graphical user interface and software-development tools.






30. A query that asks a question about the data stored in your tables and returns a results set in the form of a data sheet without changing the actual data in the table(s).






31. An operator used to compare two values or expressions; For example - < (less than) - > (greater than) - = (equal to)






32. A graphical representation of any portion of a database scheme.






33. The set of fields in a table which stores unique values and so any one from the list can be selected to be the primary key.






34. Specialized engines designed specifically to store objects. Users can interact with objects only through designated methods.






35. The process of organizing data to minimize redundancy and produce smaller - well-structured relations/tables.






36. The components of a data abase i.e. tables - queries - forms - reports - pages - macros and modules.






37. Data about data.






38. A programming language designed for managing & obtaining data in relational database management systems (RDBMS)






39. All determinants are candidate keys.






40. The process of examining and analyzing data with a view to extracting patterns from it. It is usually done on data warehouses






41. A value that is automatically entered in a field or control when you add a new record.






42. No Transitive Dependencies.






43. Stored procedures that may be configured to automatically execute (fire) when certain events take place.






44. A database object that stores data in records and fields. The data is usually about a particular category of things.






45. That structure which contains description of objects created by a user - such as base tables - views and constraints - as a part of a database.






46. An organised pool of related data files which can be easily accessed and managed and that may be used by a number of different application programs






47. All key attributes defined - attributes depend on key and no repeating groups.






48. Refers to the number of associations that can exist between two record types.






49. Data from a table - form - query which is displayed in a row-and-column format.






50. The conditional expession that is to be used to select particular data records from a larger set of records.