WSO2's API Vision: Unifying Control, Empowering Developers
Slide1 mis update
1. Royal University of Phnom Penh
ដដដដដដដដដដដ Mr Kean Tak
ដដដដដដដដដដដ
Member Group
1. Chan Pisey
2. Chhann Seakquech
3. Bun Seng
4. Choun Mengcheng
5. Bun Panha
6. Choun Mengcheng
7. Chheang Chhayheng
8. Chea Sovathana
9. Chea Vuthu
2. I.
Content
Storing and Retrieving Data
II. Manipulating Data and Generating Report
III. Database Administration
IV. Popular Database Management Systems
V. Special –Purpose Database Systems
VI. Selecting a Data Management System
3. Storing and Retrieving Data
When an application program request data
from DBMS, the application program
follows a logical access path
When the DBMS goes to a storage device
to retrieve the requested data, it follows a
path to the physical location (physical
access path) where the data is stored
5. Manipulating Data and
Generating Reports
Data manipulation language (DML): the
commands that are used to manipulate the data
in a database
Structured Query Language (SQL): adopted by the
American National Standards Institute (ANSI) as the
standard query language for relational databases
Once a database has been set up and loaded
with data, it can produce reports, documents,
and other outputs
6. Database Administration
DBA
Works with users to decide the content of the database
Works with programmers as they build applications
to ensure that their programs comply with database
management system standards and conventions
Data administrator:
Responsible for defining and implementing
consistent principles for a variety of data issues
7. Popular Database Management
Systems
Popular DBMSs for end users include
Microsoft’s Access and Corel’s Paradox
The complete database management software market
includes databases by IBM, Oracle, and Microsoft
Examples of open-source database systems:
PostgreSQL and MySQL
Many traditional database programs are now
available on open-source operating systems
8. Special-Purpose Database Systems
Some specialized database packges are used .
for specific purposes or in specific industries:
Rex-book from Urbanspoon
Morphbank(www.morphbank.net):
Allows researchers to continually update and expand a
library of more than 96.000 biological images
9. Selecting a Database Management
System (continued)
Important characteristics of databases to
consider
Database size
Database Cost
Database users
Performance
Integration
Vendor