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Test your basic knowledge |
Database Fundamentals
Start Test
Study First
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 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.
View
Primary Key
Validation Rule
Concatenation
2. A relationship between two entities in which each occurrence of the first entity is related to many occurrences of the second entity and each occurrence of the second entity is related to or at most one occurrence of the first entity
Concatenation
HAVING Clause
One-to-Many Relationship
Data Independence
3. The property that lets you change the structure of a database without requiring you to change the programs that access the database
Comparison Operator
Entity-Relationship (E-R) Diagram
Data Independence
Qualify
4. The column on which two tables are joined
Join Column
Documenter
Relation
Calculated Field
5. The portion of the Query Design window in Access where you enter fields or criteria or sort orders and so on
Aggregate Functions
Qualify
Design Grid
Entity
6. The relational algebra command for performing the difference of two tables
Calculated Field
Multiple-Field Index
Major Sort Key
SUBTRACT
7. The SQL statement that is used to revoke privileges from users of a database
Data File
Index Key
REVOKE
Entity Integrity
8. The individual or group that is responsible for a database
Relation
FROM Clause
Integrity Constraint
Database Administration (DBA)
9. 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
Relation
Form
Sort
Make-Table Query
10. The relational algebra command used to select columns from a table
Delete Query
PROJECT
Outer Join
Relational Database
11. Duplication of data or the storing of the same data in more than one place.
Cascade Update
Join Line
Redundancy
Defining Query
12. The column on which two tables are joined
One-to-Many Relationship
Design Grid
Join Column
Functions
13. The most common form of a join
Repeating Groups
Join Line
AND Criterion
Natural Join
14. An access query that creates a table using the results of a query
SELECT Clause
Database Design
Attribute
Make-Table Query
15. The property that lets you change the structure of a database without requiring you to change the programs that access the database
Product
Criterion
Data Independence
Column
16. The portion of the system catalog that contains index information
Legal-Values Integrity
ORDER BY Clause
Systables
Sysindexes
17. The field on which data are sorted
Outer Join
Sort Key
Update Query
Data File
18. The relational algebra command that combines tables and searches for rows in the first table that match all rows in the second table
GRANT
Major Sort Key
Division
HAVING Clause
19. In relational algebra the operation in which two tables are connected on the basis of common data.
SELECT Clause
Relational Algebra
Minor Sort Key
Join
20. 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
Database Administrator (DBA)
Relation
Major Sort Key
Criterion
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
Primary Key
Database Design
Design Grid
Redundancy
22. The SQL command that drops (deletes) and index from a table
Join
DROP INDEX
Column
Query
23. A data value meaning "unknown" or "not applicable"
Null
Form
Delete Query
Sort Key
24. A data manipulation language for relational databases in which users indicate the action to be taken by completing on-screen forms
Query-By-Example (QBE)
REVOKE
Reserved Words
Catalog
25. In Access the query that updates the contents of a table
Unnormalized Relation
Update Query
WHERE Clause
Compound Criteria
26. A field whose value is computed from other fields in the database
UPDATE
Multiple-Field Index
Computed Field
Functions
27. A structure that contains information about the objects (tables or columns or indexes or views and so on) in a database
Relational Database
Grouping
ALTER TABLE
System Catalog
28. An index built on more than one field
Multiple-Field Index
GROUP BY Clause
Row-and Column Subset View
Column
29. Duplication of data or the storing of the same data in more than one place.
Attribute
Design Grid
Criteria
Redundancy
30. When sorting on two fields - the less important field
Database Management System (DBMS)
Division
SUBTRACT
Minor Sort Key
31. The SQL command that is used to change the structure of a table
Union
ALTER TABLE
PROJECT
Relation
32. The process of arranging rows in a table or results of a query in a particular order
Validation Text
Single-Field Index
Sort
Database Administrator (DBA)
33. A word that is part of the SQL language
Form
Reserved Words
Entity Integrity
Make-Table Query
34. The table obtained by concatenating every row in the first table with every row in the second table
Primary Key
Cartesian Product
Product
SUBTRACT
35. A person or place or object or event or idea for which you want to store and process data
Entity
Repeating Groups
Sort Key
Comparison Operator
36. A person or place or object or event or idea for which you want to store and process data
Sort
Division
Multiple-Field Index
Entity
37. An access tool that provides documentation about the objects in a database
Documenter
Secondary Sort Key
FOREIGN KEY
Security
38. The field or fields on which an index is built
Null
Index Key
Null
GRANT
39. The portion of the system catalog the contains column information
SELECT
Criteria
Query
Syscolumns
40. A condition that involves only a single field and a single value
Simple Condition
Secondary Sort Key
SUBTRACT
Aggregate Functions
41. The relational algebra command used to select columns from a table
Comparison Operator
PROJECT
Null
Integrity
42. When comparing tables an intersection is a new table containing all rows that are in both original tables
Database Administrator (DBA)
Sysindexes
Relationship
Intersection
43. A structure that satisfies the properties required to be a relation with the exception of allowing repeating groups
Syscolumns
Query-By-Example (QBE)
Unnormalized Relation
Repeating Groups
44. The SQL command used to add new data to a table
INSERT
Primary Key
Validation Text
Repeating Groups
45. The portion of the Query Design window in Access where you enter fields or criteria or sort orders and so on
Design Grid
Cartesian Product
Qualify
Primary Key
46. Two simple criteria in a query the are combined with the AND or OR operators
Union
One-to-Many Relationship
Primary Sort Key
Compound Criteria
47. The SQL command that creates an index in a table
Relation
Database Design
CREATE INDEX
SQL (Structured Query Language)
48. A view that consists of a subset of the rows and columns in a table
Delete Query
PRIMARY KEY
Row-and Column Subset View
Query
49. 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
Form
Make-Table Query
CREATE TABLE
OR Criterion
50. The field on which data are sorted
GRANT
Qualify
Sort Key
PROJECT