Database - Introduction to SQL - Discussion

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

9. 

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

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

Answer: Option A

Explanation:

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.
ex for DDL:- CREATE,DROP,ALTER
ex for DML:-SELECT FROM WHERE...

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)  
DDL:

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.

DML:

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.

DCL:

Data Control Language (DCL) statements

TCL:

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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