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






2. All determinants are candidate keys.






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






4. Attribute that determines the value of another attribute.






5. DOC MADE UP






6. One (or more fields) in a table that refer to the primary key in another table.






7. A table which is not only in 2NF but whose non-primary key fields are dependent only on the primary key and therefore have no dependence on (relationship to) any other non-primary key field in the table.






8. A window that displays the SQL statement for the current query or is used to create a SQL specific query. When you create a query in design view - Access constructs the SQL equivalent in the SQL view.






9. The horizontal bar at the top of a column. You can click a column selector to select the entire column in the query design grid or the filter design grid






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






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






12. No multiple multi-valued dependencies.






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






14. A key that consists of 2 or more attributes that uniquely identify an entity occurrence.






15. 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).






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






17. A question about the data stored in your tables - or a request to perform an action on the data. A query can bring together data from multiple tables to serve as the source of data for a form. report or data access page.






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






19. A characteristic of the items in a database i.e. a field






20. A feature that speeds up searching and sorting in a table based on key values and can enforce uniqueness on the rows of a table.






21. Dependency where determinant determines a list of values.






22. A DBMS created by Microsoft - it is a collection of data and objects - such as tables - queries - or forms - related to a particular topic or purpose.






23. 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.






24. a.k.a record






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






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






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






28. A link between two or more tables.






29. A control - also called an edit field - used on a form - report or data access page to display text or accept data entry.It can have a label attached to it.






30. 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






31. 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






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






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






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






35. 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.






36. Knowing the value of one attribute you can determine the value of another attribute.






37. Candidate key selected for use.






38. In an access databse - a window in which you work with tables in design view or datasheet view.






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






40. Data about data.






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






42. Knowingly violates one or more rules of normalization.






43. A record as seen in the data sheet view.






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






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






46. 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.






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






48. 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






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






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