It is a Presentation about what DBMS is how does it work, its objectives and most commonly used database language SQL. So little bit you know about what SQL is and its functions.

1. DBMS
Database Management System
SHAHAB-UDDIN 44
SHAFIQ UR REHMAN 43
M.ARIF 52
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2. CONTENTS
• DBMS
• How does it work
• Why do we use DBMS
• Objectives of DBMS
• SQL
• Features of SQL
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3. DBMS
 Software that is used to produce bridge between user
and the system.
 Software that enables to store, modify and extract
information from a database.
 DBMS is used for large and medium sized organization
having different types of files for different purposes.
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4. DBMS
Columns
Rows
Tables
Relationship DBMS Data Types
Foreign key Primary Key
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5. WHY DO WE USE DBMS?
 DBMS Is Better Than Manual Processes in so Many
Ways
 Controlling redundancy and inconsistency
 Access Control and ease in accessing data
 Multiple User Interface
 Security
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6. OBJECTIIVES OF DBMS
 Sharability
 Availability
 Evoleability
 Data integration
 Data integrity
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7. SHARABILITY
 The ability to share.
 Sharing means that information can be stored once and then
retrieved by number of times by authorized users of the
database.
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8. AVAILABILITY
 The data is available.
 DBMS must be accessible to every user maximum time round
the clock.
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9. EVOLEABILITY
 Also called Data Growth.
 DBMS must be able to grow according to the user needs. It
must also be able to cope with the advancement and
technology.
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10. DATA INTEGRATION
 Data Integration means join the data from multiple sources.
 A process of combining data residing at different places and
proving user with unified view of the data.
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11. DATA INTEGRITY
 It refers to the correctness and completeness of the data in
database.
 It is related with the quality of data when a database contains
any error it loses integrity.
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12. SQL:( STRUCTURED QUERY LANGUAGE )
 Database language designed for retrieval and management of
data.
 Called as Structured Query Language
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13. FEATURES OF SQL
 It is a non-procedural language.
 It is an English-like language.
 It can process a single record as well as set of records at a time.
 All SQL statements define what is to be done rather than how is
to be done.
 SQL has facilities for defining database views, security,
transaction etc.
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