This document provides information on a presentation about the differences between DDL and DML. The presentation will be given by Shahbaz Khan Lund, Inayatullah Panhwar, Faveed Ali Siyal, and Sayed Karamat Ali Shah. DDL is used to define and manage database objects like tables, while DML allows users to manipulate data within those objects using commands like SELECT, INSERT, UPDATE and DELETE. Sayyed Karamat Shah will demonstrate DDL and DML statements practically during the presentation.

2. Presentation Topic
DDL VS DML
Present By
Shahbaz Khan Lund
Inayatullah Panhwar
Faveed Ali Siyal
Sayed Karamat Ali Shah

3. SQL
 SQL is a standardized query language for
requesting information from a database.
 The original version called SEQUEL
(structured English query language) was
designed by an IBM research center in 1974 and
1975.
 SQL was first introduced as a commercial
database system in 1979 by Oracle Corporation.

5. DDL(Data definition language)
 DDL stands for Data Definition
Language.
 DDL statements are used to build and
modify the structure of tables and
other objects in the database.

6.  CREATE:- This command simply means to
create the table.
 ALTER:- It is used to modify the structure
of an existing object.
 TRUNCATE:- It is used to delete all data
from a table which is faster then delete.
 RENAME:- It is used to rename a database
table.
 DROP:- It removes the entire table from
the database.
DDL provides the following
statements to manipulate the
object in database:-

7. Inayatullah Panhwar

8. DML(Data Manipulation language)
DML (Data Manipulation Language).
It is used for selecting, inserting,
deleting and updating data in a
database.

9.  SELECT:-Select records from a table.
 UPDATE:- Update / Modify existing records.
 DELETE:- Delete existing records.
 INSERT:- Insert new records.
DML provides the following
statements to manipulate the object
in database:-

11. Faveed Ali Siyal

12. Advantages of DML
 The DML statements can modify the data
stored in a database.
 User can specify what data is needed.
 DML tends to have many different
flavors and capabilities between
database vendors.
 It provides efficient human interaction
with the system.

13. Disadvantages of DML
 DML cannot be used to change the
database structure.
 Tables or columns cannot be created
or deleted using DML.
 View the data without storing the
data into the object.
 Restrict the view of a table i.e. Can
hide some of columns in the tables.

14. Sayyed Karamat Shah
will do Practical
Of DDL and DML
statements .