DELETE Commands

To delete all the records from a table in mysql we can use TRUNCATE :

Code:

TRUNCATE 'Department'

You can delete a specific parts of records from database using DELETE command with where clause :

Code:

DELETE FROM Department WHERE NumOfStudents< 5

To delete an entire table from the database we use DROP command :

Code:

DROP TABLE Department

We can also add if exists to it :

Code:

DROP TABLE IF EXISTS 'Department';

You can also delete multiable tables in one sentence :

Code:

DROP TABLE 'Department', 'Student', 'Course';

You can use DROP command to delete an index from a table :

Code:

ALTER TABLE 'Department' DROP INDEX 'index_cat_id'

You can use DROP command to delete an database :

Code:

DROP DATABASE myDB

_________________
M. S. Rakha, Ph.D.
Queen's University
Canada

Author: DrRakha
Mastermind

Posts: 2715
Have thanks: 74 time

Page 1 of 1

[ 1 post ]

Related Posts to : DELETE Commands
FTP commands -
SQL AND OR in WHERE query Commands -
jar files commands -
Execute System Commands -
Graphics commands list in C++ -
Delete directory in php -
Delete a file in php -
delete file in asp -
Delete file -
Delete session variable -

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
All copyrights reserved to codemiles.com 2007-2011
mileX v1.0 designed by codemiles team
Codemiles.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com