dcsimg
Login | Register   
LinkedIn
Google+
Twitter
RSS Feed
Download our iPhone app
TODAY'S HEADLINES  |   ARTICLE ARCHIVE  |   FORUMS  |   TIP BANK
Browse DevX
Sign up for e-mail newsletters from DevX

By submitting your information, you agree that devx.com may send you DevX offers via email, phone and text message, as well as email offers about other products and services that DevX believes may be of interest to you. DevX will process your information in accordance with the Quinstreet Privacy Policy.


Tip of the Day
Language: SQL
Expertise: Intermediate
Jun 14, 2006

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Speeding Up Table Creation Activity

Suppose table A is very large and you want to create table B using create table... as select and want to speed up this activity. You can use the nologging keyword. For example:

create table B
nologging
as select * from A;
Use of nologging keyword precludes the generation of redo log entries.

Note: Since the new table's creation is not being written to the redo log files, the table will not be re-created in case of a database failure. Therefore, you should consider taking a backup of the database soon after using the nologging option if you want to be able to recover your new table.

Girija Nanduri
 
Comment and Contribute

 

 

 

 

 


(Maximum characters: 1200). You have 1200 characters left.

 

 

Sitemap
Thanks for your registration, follow us on our social networks to keep up-to-date