Data Resource Management
→ -:- -when you use technology to mange data.
Database Administrator (DBA)
→ -:- -Responsible for managing the data, work with programmers and systems analyst
to design and implement database.
-Also work with users and managers of the firm to establish policies fo...
Best Grades | Must Pass | Latest Update | Correct Answers | 2024/2025
ISQS Delgadillo Exam 3 TTU Questions and
Correct Answers | Latest Update
Data Resource Management
→ -:- -when you use technology to mange data.
Database Administrator (DBA)
→ -:- -Responsible for managing the data, work with programmers and systems analyst
to design and implement database.
-Also work with users and managers of the firm to establish policies for managing.
Why is there a demand for more and better data?
→ -:- -competitive environment.
-powerful workstations that can handle data quickly.
-more computer literate personnel.
Equivalent of DBMS : Office
→ -:- Database: file cabinet
File: file drawer
Record: file folder
Record Attributes: Report
Hierarchy of data
→ -:- -Database
-Files
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/2025
-Records
-Attributes
-Characters
-Bits
Database
→ -:- -Integrated collection of logically related data elements.
-Personnel File, Payroll File, Department File
File
→ -:- -(e.g. personnel file)
◦ 098-40-1370 Clooney, George 1-20-2010
◦ 594-39-3948 Kidman, Nicole 3-24-2009
◦ 234-34-3483 Hanks, Tom 2-02-2009
◦ 457-74-3854 Winslet, Kate 1-23-2009
Record
→ -:- -(Record containing SSN, Last and
First name, Hire date)
-594-41-3955 Bullock, Sandra 4-24-07
Attribute
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/2025
→ -:- -(last name)
◦ Bullock
-Characters (bytes)
◦ 01100010 (Letter "B" in Binary Code)
Bits
→ -:- - 0 or 1
flat file
→ -:- -A table storing all database information in one large two-dimensional table.
Traditional approach disadvantages
→ -:- - you have to change your address at every place where everyone has their own
file on you.
-Data are stored, organized and processed in independent files
-Data duplication- everyone has your address.
-Lack of integration- its impossible to combine two different databases or files.
-data dependence- when you change files you have to change program.
Database approach
→ -:- -when you need to change an address now just change it on raider link. Its from
one central location.
-files are consolidated into a common pool of records available to many different application
programs.
-requires the use of a database management system.
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