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Database Interrogation - Buisness Management - Lecture Slides, Slides of Business Administration

Business Management is one of the most important subject in Management Sciences but it also has its scope in engineering. Following are the key points discussed in these Lecture Slides : Database Interrogation, Capability of a Dbms, Information, Database, Query Language, Report Generator, Natural Language, Sql Queries, Application Development, Programming Language

Typology: Slides

2012/2013

Uploaded on 07/29/2013

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Chapter
5Data Resource Management
Slide 23
What are the major functions of a DBMS ???
•Database Interrogation:
• Capability of a DBMS to
report information from
the database in response
to end users’ requests
•Query Language: allows
easy, immediate access to
ad hoc data requests
•Report Generator: allows quick, easy specification of a
report format for information users have requested
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Chapter

Data Resource Management

What are the major functions of a DBMS ???

  • Database Interrogation:
    • Capability of a DBMS to

report information from

the database in response

to end users’ requests

  • Query Language : allows

easy, immediate access to

ad hoc data requests

  • Report Generator : allows quick, easy specification of a

report format for information users have requested

Chapter

Data Resource Management

What are the major functions of a DBMS ???

  • Database Interrogation:
    • Natural Language vs. SQL Queries

Chapter

Data Resource Management

What are the forms of a DBMS ???

Hierarchical : relationships between records form a hierarchy or treelike structure

Network : data can be accessed by one of several paths because any data element or record can be related to any number of other data elements

Relational : All data elements within the database are viewed as being stored in the form of simple tables

Chapter

Data Resource Management

StudentID Name Address Major 123456789 Saenz, Lupe 123 Mesa Finance 234567890 Chung, Mei 37 5 th^ St. INFOSYS 345678901 Adams, John 54B Hague Accounting 456789012 Elam, Mary 123-22 E St. INFOSYS •••••• •••••• •••••• ••••••

Table Student

Field Names

Record

Field

What are the forms of a DBMS ???

RDBMS

Chapter

Data Resource Management

What are the forms of a DBMS ???

Multidimensional Database Structure

  • Variation of the relational model that uses multi-

dimensional structures to organize data and express the

relationships between data

Chapter

Data Resource Management

What are the forms of a DBMS ???

Object-Oriented Database Structure

  • Can accommodate more complex data types including

graphics, pictures, voice and text

Chapter

Data Resource Management

How do the DBMS structures compare ???

(These arte your authors’ viewpoints)

Hierarchical : best for structured, routine types of transaction processing.

Network : best when many-to-many relationships are needed

Relational : best when ad hoc reporting is required.

Chapter

Data Resource Management

How are databases developed ???

Database Development : Enterprise-wide database development is usually controlled by database administrators (DBA)

  • Data Planning:
    • Database administrators and designers work with corporate and end user management to develop an enterprise model that defines the basic business process of the enterprise.