Data resources

FILE ORGANIZATION ,[object Object],[object Object],[object Object],[object Object],[object Object]

FILE ORGANIZATION ,[object Object],[object Object],[object Object]

FILE ORGANIZATION ,[object Object],[object Object],[object Object],[object Object]

KEY FIELD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],PROBLEMS WITH TRADITIONAL FILE ENVIRONMENT Flat File

SEQUENTIAL VS. DIRECT FILE ORGANIZATION ,[object Object],[object Object],[object Object]

FILING METHODS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DIRECT FILE ACCESS METHOD ,[object Object],[object Object],[object Object],[object Object]

DATABASE MANAGEMENT SYSTEM (DBMS) ,[object Object],[object Object],[object Object],[object Object],DBMS

COMPONENTS OF DBMS: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DBMS

STRUCTURED QUERY LANGUAGE (SQL) ,[object Object],[object Object],[object Object],[object Object],DBMS

ELEMENTS OF SQL ,[object Object],[object Object],[object Object],[object Object],DBMS

TWO VIEWS OF DATA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],BIT BYTE FIELD RECORD FILE DATABASE DBMS

TYPES OR RELATIONS ONE-TO-ONE: STUDENT ID ONE-TO-MANY: CLASS STUDENT A STUDENT B STUDENT C MANY-TO-MANY: STUDENT A STUDENT B STUDENT C CLASS 1 CLASS 2

HIERARCHICAL DATA MODEL ROOT FIRST CHILD 2nd CHILD Ratings Salary Compensation Job Assignments Pension Insurance Health Benefits Employer

NETWORK DATA MODEL ,[object Object],[object Object],[object Object],NETWORK A NETWORK B NETWORK C NETWORK 1 NETWORK 2

OTHER SYSTEMS ,[object Object],[object Object],[object Object],[object Object]

CREATING A DATABASE ,[object Object],[object Object],[object Object]

CREATING A DATABASE CONCEPTUAL DESIGN: ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],CREATING A DATABASE PHYSICAL DESIGN:

ELEMENTS OF DATABASE ENVIRONMENT DATABASE MANAGEMENT SYSTEM DATA ADMINISTRATION DATABASE TECHNOLOGY & MANAGEMENT USERS DATA PLANNING & MODELING METHODOLOGY

ENTITY- RELATIONSHIP DIAGRAM 1 1 M 1 ORDER CAN HAVE PART SUPPLIER CAN HAVE ORDER: #, DATE, PART #, QUANTITY PART: #, DESCRIPTION, UNIT PRICE, SUPPLIER # SUPPLIER: #, NAME, ADDRESS

NORMALIZATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DISTRIBUTED DATABASES ,[object Object],[object Object],[object Object]

DATABASE ADMINISTRATION ,[object Object],[object Object],[object Object],[object Object],[object Object]

DATABASE TRENDS ,[object Object],[object Object],[object Object]

DATABASE TRENDS ,[object Object],[object Object],[object Object],[object Object],[object Object]

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