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ISA 245 Midterm Exam With 100% Correct And Verified Answers
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ISA 245 Midterm Exam With 100% Correct And Verified Answers
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ISA 245 Midterm Exam With 100%Correct And Verified Answers
Analytical Database - Correct Answer-Stories historical data
and business metrics used exclusively for tactical and
strategic decision making
EX: inventory levels, sales performance
Operational Database - Correct Answer-Designed to support
a company's day-to-day operations
Data Warehouse - Correct Answer-Stores data in a format
optimized for decision support
Online Analytical Processing - Correct Answer-Enable
retrieving, processing, and modeling data from the data
warehouse
Business Intelligence - Correct Answer-Captures and
processes business data to generate information that support
decision making
Major DBMS - Correct Answer--Oracle
-DB2
-SQL server
Primary Key - Correct Answer-Attribute or combination of
attributes that uniquely identify any given row
Entity Integrity - Correct Answer--No null values
Vendarsol
, -All unique values
*Primary keys*
Composite Primary Key - Correct Answer-Primary key
composed of one or more attribute
Foreign Key - Correct Answer--A primary key in another
table
-Common attribute between tables
-Used to join two or more tables
-Lower level data cannot serve as a FK in a higher level table
Relational Integrity - Correct Answer-Either a null value
*Foreign keys*
Unary Relationship - Correct Answer--Association is
maintained within a single entity
-recursive relationship-relationship exists between
occurrences of the same entity set
Binary Relationship - Correct Answer-Two associated
entities
Ternary Relationship - Correct Answer-Three entities are
associated
EX: teacher table, subject table, course table. Which
teachers taught which subjects in which courses
Insert - Correct Answer-Insert rows into a table
Vendarsol
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