https://padlet.com/shikin1205/i5_tuto5 Databased and Information managament en-us 2017-01-12 23:44:03 UTC 2017-01-13 00:54:11 UTC hello@padlet.com https://padlet.com/shikin1205/i5_tuto5/wish/146948359 Example of entity: Author,Book
Example of attribute: 
Any attribute for Book:Book's name,Book's price.
Slide23.Entity-relationship diagram is used by database designers to document the data model.ERD illustrates the relationship between entities.]]> 2017-01-13 00:09:18 UTC https://padlet.com/shikin1205/i5_tuto5/wish/146948359 KaiLiew https://padlet.com/shikin1205/i5_tuto5/wish/146948772 a) -slide no. 9
control redundancy, eliminate inconsistency, uncouples programs and data, enables organizations to central manage data and data security. 

B) - slide no. 13
Select- creates subset of data of data of all records that meet stated criteria.
Join- combines relational tables to provide user with more information than available in individual tables.
Project- creates subset of columns in table, creating tables with only the information specified.

C) - slide no.38
Ease of use of browser software, web interface requires few or no changes to database, inexpensive to add web interface to system. ]]> 2017-01-13 00:16:09 UTC https://padlet.com/shikin1205/i5_tuto5/wish/146948772 https://padlet.com/shikin1205/i5_tuto5/wish/146949029 a)primary key is field in table used for key field such as sudents ID number.(slide 11)
b)number of students, phone number, students information]]> 2017-01-13 00:20:10 UTC https://padlet.com/shikin1205/i5_tuto5/wish/146949029 https://padlet.com/shikin1205/i5_tuto5/wish/146950099 a)The two example of entity is:
-used by database designers to document the data model
-illustrates relationships between entities.(slide 23)
doctor id and patient id.
b)Data Warehouse (Slides 27)
- Stores current and historical data from many core operational transaction systems.
-Consolidates and standardizes information for use across enterprise, but data cannot be altered.
-Provides analysis and reporting tools.
  Data arts (Slides 27)
-Subset of data warehouse.
-Summarized or focused portion of data for use by specific population of users.
-Typically focuses ob single subject or line of business.
They were important because to stored the data of patients and the doctors for future use.]]> 2017-01-13 00:35:52 UTC https://padlet.com/shikin1205/i5_tuto5/wish/146950099 https://padlet.com/shikin1205/i5_tuto5/wish/146950650 Question 5 

-slide no.11
Relational DBMS
-Represent data as two-dimensional tables
-Each table contains data on entity and attributes 
-Example: the records of their history , x-ray results , the patient image , blood test result and their medical report]]> 2017-01-13 00:42:19 UTC https://padlet.com/shikin1205/i5_tuto5/wish/146950650 https://padlet.com/shikin1205/i5_tuto5/wish/146950942 a) Two possible tables
-Student information
-Student and subject

b) two attribute
-phone number, emails

c)primary key
-Student ID 
-Subject name/ID]]> 2017-01-13 00:45:46 UTC https://padlet.com/shikin1205/i5_tuto5/wish/146950942