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Indu George
Tecnologia
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Data ,[object Object],[object Object],[object Object]
Data Continued: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Continued: ,[object Object],[object Object],[object Object],[object Object],[object Object]
Traditional Approach ,[object Object],[object Object]
Files Dedicated to Application Programs
Database ,[object Object],[object Object]
Database System Components ,[object Object],[object Object],[object Object],[object Object]
Interacting with a Database Application
Data Sharing in a Database Environment
DBMS ,[object Object]
Why We Need DBMS ,[object Object],[object Object]
Using DBMS ,[object Object],[object Object],[object Object],[object Object]
DBMS Advantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
DBMS Disadvantages ,[object Object],[object Object],[object Object],[object Object]
DBMS-Users ,[object Object],[object Object],[object Object],[object Object],[object Object]
The Entity Relationship Model ,[object Object],[object Object]
Data Models ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Models ,[object Object]
Data Models ,[object Object]
Data Models ,[object Object]
Data Models ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Relational DBMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
H How do I design a database? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Abstraction ,[object Object],[object Object],[object Object]
Data Abstraction ,[object Object],[object Object],[object Object]
Data Abstraction
Instances & Schemas ,[object Object],[object Object],[object Object],[object Object]
RDBMS ,[object Object],[object Object],[object Object]
RDBMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
RDBMS ,[object Object],[object Object],[object Object],[object Object]
RDBMS ,[object Object],[object Object]
Integrity Rules ,[object Object],[object Object],[object Object]
Integrity Rules ,[object Object],[object Object]
Normalization ,[object Object],[object Object]
Relations that have redundant data may have problems called update anomalies , which are classified as , Insertion anomalies Deletion anomalies Modification anomalies
Unnormalized form (UNF) A table that contains one or more repeating groups. Figure 3 ClientRental unnormalized table Repeating group = (propertyNo, pAddress, rentStart, rentFinish, rent, ownerNo, oName) ClientNo cName propertyNo pAddress rentStart rentFinish rent ownerNo oName CR76 John kay PG4 PG16 6 lawrence St,Glasgow 5 Novar Dr, Glasgow 1-Jul-00 1-Sep-02 31-Aug-01 1-Sep-02 350 450 CO40 CO93 Tina Murphy Tony Shaw CR56 Aline Stewart PG4 PG36 PG16 6 lawrence St,Glasgow 2 Manor Rd, Glasgow 5 Novar Dr, Glasgow 1-Sep-99 10-Oct-00 1-Nov-02 10-Jun-00 1-Dec-01 1-Aug-03 350 370 450 CO40 CO93 CO93 Tina Murphy Tony Shaw Tony Shaw
First Normal Form (1NF) ,[object Object],[object Object],[object Object],[object Object]
Client ( clientNo , cName) PropertyRentalOwner ( clientNo , propertyNo , pAddress, rentStart, rentFinish, rent, ownerNo, oName) ClientNo cName CR76 John Kay CR56 Aline Stewart ClientNo propertyNo pAddress rentStart rentFinish rent ownerNo oName CR76 PG4 6 lawrence St,Glasgow 1-Jul-00 31-Aug-01 350 CO40 Tina Murphy CR76 PG16 5 Novar Dr, Glasgow 1-Sep-02 1-Sep-02 450 CO93 Tony Shaw CR56 PG4 6 lawrence St,Glasgow 1-Sep-99 10-Jun-00 350 CO40 Tina Murphy CR56 PG36 2 Manor Rd, Glasgow 10-Oct-00 1-Dec-01 370 CO93 Tony Shaw CR56 PG16 5 Novar Dr, Glasgow 1-Nov-02 1-Aug-03 450 CO93 Tony Shaw
Second Normal Form (2NF ) ,[object Object],[object Object]
Second Normal Form (2NF) ,[object Object],Client Rental PropertyOwner ClientNo cName CR76 John Kay CR56 Aline Stewart ClientNo propertyNo rentStart rentFinish CR76 PG4 1-Jul-00 31-Aug-01 CR76 PG16 1-Sep-02 1-Sep-02 CR56 PG4 1-Sep-99 10-Jun-00 CR56 PG36 10-Oct-00 1-Dec-01 CR56 PG16 1-Nov-02 1-Aug-03 propertyNo pAddress rent ownerNo oName PG4 6 lawrence St,Glasgow 350 CO40 Tina Murphy PG16 5 Novar Dr, Glasgow 450 CO93 Tony Shaw PG36 2 Manor Rd, Glasgow 370 CO93 Tony Shaw
Third Normal Form ,[object Object],[object Object],[object Object]
The resulting 3NF relations have the forms: Client ( clientNo , cName) Rental ( clientNo , propertyNo , rentStart, rentFinish) PropertyOwner ( propertyNo , pAddress, rent, ownerNo) Owner ( ownerNo , oName)
Client Rental PropertyOwner Owner ClientNo cName CR76 John Kay CR56 Aline Stewart ClientNo propertyNo rentStart rentFinish CR76 PG4 1-Jul-00 31-Aug-01 CR76 PG16 1-Sep-02 1-Sep-02 CR56 PG4 1-Sep-99 10-Jun-00 CR56 PG36 10-Oct-00 1-Dec-01 CR56 PG16 1-Nov-02 1-Aug-03 propertyNo pAddress rent ownerNo PG4 6 lawrence St,Glasgow 350 CO40 PG16 5 Novar Dr, Glasgow 450 CO93 PG36 2 Manor Rd, Glasgow 370 CO93 ownerNo oName CO40 Tina Murphy CO93 Tony Shaw
 
INTRODUCTION ,[object Object],[object Object],[object Object]
DDL ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Data Manipulation Language ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CREATE TABLE ,[object Object],[object Object]
CREATE TABLE ,[object Object],[object Object]
[object Object],[object Object]
ALTER TABLE ,[object Object],[object Object],[object Object]
DROP TABLE ,[object Object],[object Object],[object Object],[object Object],[object Object]
TRUNCATE TABLE ,[object Object],[object Object],[object Object],[object Object],[object Object]
RENAME TABLE ,[object Object],[object Object],[object Object],[object Object],[object Object]
Data manipulation language are used for managing data within schema objects
INSERT ,[object Object],[object Object],[object Object]
UPDATE ,[object Object],[object Object],[object Object]
DML Commands ,[object Object],[object Object],[object Object],[object Object],[object Object]
DELETE ,[object Object],[object Object],[object Object]
SELECT ,[object Object],[object Object]
SELECT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SELECT DISTINCT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
WHERE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
ORDER BY ,[object Object],[object Object],[object Object]
ORDER BY ,[object Object],[object Object],[object Object],[object Object]
INDEX ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Primary key ,[object Object],Specifying a primary key when creating a table: CREATE TABLE Customer (SID integer, Last_Name varchar(30), First_Name varchar(30), PRIMARY KEY (SID));
Contd… ,[object Object],[object Object]
ALIASE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
JOIN ,[object Object],[object Object]
JOIN ,[object Object],[object Object],[object Object],[object Object]
JOIN ,[object Object],[object Object],[object Object],[object Object]
[object Object]

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D B M S Animate

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  • 6. Files Dedicated to Application Programs
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  • 9. Interacting with a Database Application
  • 10. Data Sharing in a Database Environment
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  • 36. Relations that have redundant data may have problems called update anomalies , which are classified as , Insertion anomalies Deletion anomalies Modification anomalies
  • 37. Unnormalized form (UNF) A table that contains one or more repeating groups. Figure 3 ClientRental unnormalized table Repeating group = (propertyNo, pAddress, rentStart, rentFinish, rent, ownerNo, oName) ClientNo cName propertyNo pAddress rentStart rentFinish rent ownerNo oName CR76 John kay PG4 PG16 6 lawrence St,Glasgow 5 Novar Dr, Glasgow 1-Jul-00 1-Sep-02 31-Aug-01 1-Sep-02 350 450 CO40 CO93 Tina Murphy Tony Shaw CR56 Aline Stewart PG4 PG36 PG16 6 lawrence St,Glasgow 2 Manor Rd, Glasgow 5 Novar Dr, Glasgow 1-Sep-99 10-Oct-00 1-Nov-02 10-Jun-00 1-Dec-01 1-Aug-03 350 370 450 CO40 CO93 CO93 Tina Murphy Tony Shaw Tony Shaw
  • 38.
  • 39. Client ( clientNo , cName) PropertyRentalOwner ( clientNo , propertyNo , pAddress, rentStart, rentFinish, rent, ownerNo, oName) ClientNo cName CR76 John Kay CR56 Aline Stewart ClientNo propertyNo pAddress rentStart rentFinish rent ownerNo oName CR76 PG4 6 lawrence St,Glasgow 1-Jul-00 31-Aug-01 350 CO40 Tina Murphy CR76 PG16 5 Novar Dr, Glasgow 1-Sep-02 1-Sep-02 450 CO93 Tony Shaw CR56 PG4 6 lawrence St,Glasgow 1-Sep-99 10-Jun-00 350 CO40 Tina Murphy CR56 PG36 2 Manor Rd, Glasgow 10-Oct-00 1-Dec-01 370 CO93 Tony Shaw CR56 PG16 5 Novar Dr, Glasgow 1-Nov-02 1-Aug-03 450 CO93 Tony Shaw
  • 40.
  • 41.
  • 42.
  • 43. The resulting 3NF relations have the forms: Client ( clientNo , cName) Rental ( clientNo , propertyNo , rentStart, rentFinish) PropertyOwner ( propertyNo , pAddress, rent, ownerNo) Owner ( ownerNo , oName)
  • 44. Client Rental PropertyOwner Owner ClientNo cName CR76 John Kay CR56 Aline Stewart ClientNo propertyNo rentStart rentFinish CR76 PG4 1-Jul-00 31-Aug-01 CR76 PG16 1-Sep-02 1-Sep-02 CR56 PG4 1-Sep-99 10-Jun-00 CR56 PG36 10-Oct-00 1-Dec-01 CR56 PG16 1-Nov-02 1-Aug-03 propertyNo pAddress rent ownerNo PG4 6 lawrence St,Glasgow 350 CO40 PG16 5 Novar Dr, Glasgow 450 CO93 PG36 2 Manor Rd, Glasgow 370 CO93 ownerNo oName CO40 Tina Murphy CO93 Tony Shaw
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  • 56. Data manipulation language are used for managing data within schema objects
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