SIMPLE DATA BASE MANAGEMENT NOTES
What is the 4V characterizes of BIG Data
01 Volume
02 variety
03 velocity
04 veracity
what the main approach of Database Management?
1 File base approach
2 Database approach
(General purpose)
1 Simplicity
2. Low cost
3 Flexibility
4. Familiarity
1 Data duplicate/ redundancy
2 Data inconsistency
3 scalability limitation
4 Data sharing access control difficulties
5 Data integrity issue / inflexibility
Data base Approach
data base enviranment system
1.Hardware
2. Software
3.People
4.procedure
5.Data
Three-tier Architecture
1.client ---GUI
2.Application or Web server --- web page
3.Database Management System ----DBMS
Three tier Architechure a DBMS
1 Extternal Data
2 Conceptional Data ----- Method and Logic
3 Internal level ------Query lanuge
Data base type
High level conceptional and
Recod base Logical Data Model
High level conceptional
--Entity Relationship Diagrm (ERDIGRAM)
Rocord base Logical data model
numaric ,charactories,
Hirachical model
Network model
Relationship model
Object oriented Model
2. Low cost
3 Flexibility
4. Familiarity
2 Data inconsistency
3 scalability limitation
4 Data sharing access control difficulties
5 Data integrity issue / inflexibility
Data base Approach
data base enviranment system 1.Hardware2. Software
3.People
4.procedure
5.Data
Three-tier Architecture
1.client ---GUI2.Application or Web server --- web page
3.Database Management System ----DBMS
Three tier Architechure a DBMS
1 Extternal Data
2 Conceptional Data ----- Method and Logic
3 Internal level ------Query lanuge
Data base type
High level conceptional and
Recod base Logical Data Model
High level conceptional
--Entity Relationship Diagrm (ERDIGRAM)
Rocord base Logical data model
numaric ,charactories,
Hirachical model
Network model
Relationship model
Object oriented Model
Hirachical model
Network model
Relationship model
Object oriented Model
Great work
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