Database - Introduction to SQL - Discussion

Discussion :: Introduction to SQL - General Questions (Q.No.9)


SQL data definition commands make up a(n) ________ .

[A]. DDL
[B]. DML
[D]. XML

Answer: Option A


No answer description available for this question.

Alok said: (Mar 18, 2011)  
DDL is c/d data defination language..

Sreenath Attingal said: (Dec 8, 2011)  
SQL is both DML and DDL language.

Rincal said: (Nov 9, 2012)  
What is the full name of DDL ?

George Palatio said: (Nov 14, 2012)  
Indeed SQL is both DML and DDL
but the question is asking SQL data DEFINITION commands
So the answer is A) DDL (data DEFINITION language)

Ritesh said: (Dec 14, 2012)  
What is alter?

Kamal said: (Apr 6, 2013)  
The SQL ALTER TABLE statement allows you to rename an existing table. It can also be used to add, modify, or drop a column from an existing table.

Vijay said: (Apr 9, 2013)  
DDL means Data Definition language & it is used for creating, inserting, deleting the table. And alter is used for altering the table.

Tanvi Verma said: (Jul 21, 2013)  
Mean of DDL is Data Definition language. It is the category of sql.

Dharsini said: (Nov 14, 2013)  
Then please tell me what is DML?

Toru said: (Sep 26, 2014)  

Data Definition Language (DDL) statements are used to define the database structure or schema. examples:

CREATE - to create objects in the database.
ALTER - alters the structure of the database.


Data Manipulation Language (DML) statements are used for managing data within schema objects. Some examples:

SELECT - retrieve data from the a database.
INSERT - insert data into a table.
UPDATE - updates existing data within a table.


Data Control Language (DCL) statements


Transaction Control (TCL) statements are used to manage the changes made by DML statements. It allows statements to be grouped together into logical transactions.

Raji Viji said: (Oct 17, 2015)  
DLL, because is a only a data definition language.

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