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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. The portion of the system catalog that contains table information
Sort Key
Natural Join
REVOKE
Systables
2. The most common form of a join
Qualify
Natural Join
CREATE INDEX
Multiple Column Index
3. The part of an SQL SELECT command that indicates grouping
Legal-Values Integrity
GROUP BY Clause
Primary Key
Update Query
4. A person or place or object or event or idea for which you want to store and process data
Catalog
WHERE Clause
Single-Column Index
Entity
5. When sorting on two fields - the less important field
Secondary Sort Key
Sysindexes
Entity
Update Query
6. A program or a collection of programs through which users interact with a database
Join
Query
Primary Sort Key
Database Management System (DBMS)
7. When comparing tables the set of all rows that are in the first table but that are not in the second table
HAVING Clause
OR Criterion
Join
Difference
8. A query that deletes all records that satisfy some criterion
Delete Query
Cascade Update
CREATE INDEX
Form
9. A view that consists of a subset of the rows and columns in a table
OR Criterion
Row-and Column Subset View
One-to-Many Relationship
Minor Sort Key
10. The relational algebra command used to select columns from a table
Database
PROJECT
SUBTRACT
Update Query
11. The process of creating collections of records that share some common characteristics
Grouping
Major Sort Key
Entity-Relationship (E-R) Diagram
Column
12. An access query that creates a table using the results of a query
Make-Table Query
Data Macro
Query-By-Example (QBE)
PROJECT
13. A file used to store data about a single entity. Such a file can be thought of as a table.
Column
Minor Sort Key
Repeating Groups
Data File
14. The SQL command used to delete a table
DELETE
One-to-Many Relationship
DROP INDEX
Join Line
15. The portion of the system catalog that contains index information
Field
Attribute
Reserved Words
Sysindexes
16. The SQL command that is used to change the structure of a table
ALTER TABLE
Stored Procedure
Join Column
Minor Sort Key
17. 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
Unnormalized Relation
Grouping
One-to-Many Relationship
Aggregate Functions
18. The process of arranging rows in a table or results of a query in a particular order
Column
Sort
INTERSECT
Trigger
19. A condition that involves only a single field and a single value
DELETE
Simple Condition
Criteria
Stored Procedure
20. The relational algebra command for performing the difference of two tables
Attribute
Command
Trigger
SUBTRACT
21. A source of data - usually stored in hidden database tables - about the types of entities or attributes and relationships in a database
Compound Criteria
Single-Column Index
Functions
Catalog
22. The area of memory in MySQL that stores the most recently entered command
Natural Join
GROUP BY Clause
WHERE Clause
Statement History
23. A word that is part of the SQL language
Database
SELECT Clause
Reserved Words
Redundancy
24. The part of an SQL SELECT command that indicates a sort order
Catalog
ORDER BY Clause
Criterion
Relation
25. An update option in which related records are automatically updated
Sort Key
Field
Make-Table Query
Cascade Update
26. A relational data manipulation language in which new tables are created from existing tables through the use of a set of operations
AND Criterion
Design Grid
Single-Field Index
Relational Algebra
27. When sorting on two fields - the less important field
Secondary Sort Key
Database Management System (DBMS)
Minor Sort Key
Product
28. The prevention of unauthorized access to a database
Security
Major Sort Key
Repeating Groups
Database Management System (DBMS)
29. Two simple criteria in a query the are combined with the AND or OR operators
Compound Conditions
Union
Cascade Delete
FROM Clause
30. The plural of Criterion
Criteria
Attribute
Relational Algebra
Division
31. When sorting on two fields - the less important field
Computed Field
Join Column
Secondary Sort Key
Qualify
32. Two tables are union compatible if they have the same number of fields and if their corresponding fields have identical data types
Relation
Outer Join
Index Key
Union Compatible
33. 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
OR Criterion
Relation
Database Administration (DBA)
Relationship
34. A rule that must be followed by data in a database
Join Column
Unnormalized Relation
Integrity Constraint
PROJECT
35. A combination of criteria in which at least on the criteria must be true
Database Management System (DBMS)
OR Criterion
Data Independence
Legal-Values Integrity
36. A screen object you use to maintain or view and print data from a database
Grouping
Join
Form
Database Administrator (DBA)
37. The prevention of unauthorized access to a database
Reserved Words
Relational Algebra
Database Design
Security
38. 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.
Join Column
Relationship
Major Sort Key
Primary Key
39. A message in Access that is displayed when a validation rule is violated
Query-By-Example (QBE)
Outer Join
Validation Text
Attribute
40. A combination of two tables consisting of all records that are in either table
Database Management System (DBMS)
Database Design
Functions
Union
41. More than one entry at a single location in a table
Repeating Groups
Union
Compound Conditions
Computed Field
42. Two simple criteria in a query the are combined with the AND or OR operators
Query
Make-Table Query
Design Grid
Compound Criteria
43. A computer that provides services to the clients in a client/server system
Server
FROM Clause
Grouping
Primary Sort Key
44. A statement the can be either true or false. Also called a condition
Criterion
Single-Field Index
Database Design
Delete Query
45. 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
Form
Single-Column Index
Functions
Relation
46. A file containing a collection of compiled and optimized SQL statements that are available for future use
ORDER BY Clause
Stored Procedure
GROUP BY Clause
Outer Join
47. A structure that can store information about multiple types of entities - the attributes of these entities and the relationships among those entities
Database
Query-By-Example (QBE)
Sort
Relationship
48. A question the answer to which is found in the database
SUBTRACT
CREATE TABLE
SELECT
Query
49. When sorting on two fields this is the more important field
Concatenation
Cartesian Product
One-to-Many Relationship
Primary Sort Key
50. The table obtained by concatenating every row in the first table with every row in the second table
Minor Sort Key
Product
Join Line
Comparison Operator