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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. Candidate key selected for use.






2. A combination of attributes that can be used to uniquely identify a database record. Candidate keys are a special subset of super keys that do not have any extraneous information in them






3. 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.






4. All determinants are candidate keys.






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






6. Attribute that determines the value of another attribute.






7. A section of a record containing data relating to one single characteristic of an entity; also called an attribute






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






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






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






11. A link between two or more tables.






12. An action query that adds the records in a query's result set to the end of an existing table.






13. DOC MADE UP






14. An association/link established between common fields in two different tables. A relationship can be one-to-one - many-to-many or more usually one-to-many.






15. No multiple multi-valued dependencies.






16. The program which is used to organize - access and manage the data in a database - Creates - processes - and administers databases.






17. A type of computer file system that stores all data in a single file.






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






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






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






21. 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.






22. A data model in which the data is organized into a tree-like structure. The structure allows representing information using parent/child relationships: each parent can have many children - but each child has only one parent






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






24. 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 of0 - 1 - or many records in the related table.






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






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






27. Dependency where determinant determines a list of values.






28. The actual pieces of facts that are stored in the fields in a database table.






29. A database object that prints information formatted and organised according to your specifications.






30. The dominant database model






31. A database computer language designed for the retrieval and management of data in relational database management systems (RDBMS) - database schema creation and modification - and database object access control management.






32. a.k.a record






33. 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.






34. A function such as sum - count or average that you use to include summary data in a report.






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






36. A central repository for databases across an entire enterprise.






37. Knowingly violates one or more rules of normalization.






38. A characteristic of a field that determines what kind of data it can store and what type of operations can be performed on it.






39. Groups of database commands which are to be treated as a single atomic event.






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






41. The DML statement used to choose data from a database. The result is stored in a temporary table - called the result-set.






42. A control that indicates whether an option is selected or not. A tick mark appears in the box when the option is selected.






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






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






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






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






47. The persons or things that a database table is about.






48. A Key composed of more than one attribute.






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






50. The part of an SQL statement that specifies which record to retrieve.







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