dari ku utuk mu... =)
(perhaps kalau masuk quiz...nnt boleh la tahu, xla ternganga-ngaga..skodeng mmber sebelah) HEHEHE...=)
salah satu cara nak mulakan study smart。。。。
CHAPTER 12 : DATABASES
Data consists of facts or observations about people, places, things, and events.
TWO WAYS @ PERSPECTIVES TO VIEW DATA :
A) Physical view------> actual formats and location of data; very specialized computer professionals are concerned with this view.
B) Logical view------>focuses on meaning and content of data;end users and most computer professionals are concerned with this view.
DATA IS ORGANIZED BY THE FOLLOWING GROUPS :
- CHARACTER
- FIELD
- RECORD [ cha fie rec tab datab ]
- TABLE ====> [capik fikir rencong tebu dibuat]
- DATABASE
- KEY FIELD = PRIMARY KEY
- BATCH ( LATER )vs REAL TIME ( NOW )
PROCESSING
DBMS = Database management system
- DBMS engine
-data definition subsystem (using a data dictionary or schema)
-data manipulation subsystem, provides tools for data maintenance & data analysis; tools include query-by-example and structured query language (SQL).
-APPLICATION GENERATION SUBSYSTEM (creating data entry forms with specialized programming languages)
-DATA ADMINISTRATION SUBSYSTEM
-DATABASE ADMINISTRATORS (DBAs) are computer professionals who help define processing rights.
-multidimensional database, sometimes called a data cube.
CHAPTER 13
system analysis and design
SAD is a 6-phase problem-solving:
P/S; DO THE BEST!! SELAMAT MENJAWAB QUIZ & SELAMAT MENJAWAB 'FINAL'