Solved

improving on PARALLELISM , SORT costs...

Posted on 2016-08-09
3
34 Views
Last Modified: 2016-08-22
when you use 'include actual execution plan'
      when we see scans, we can put an index.. what about below:
      
      can you improve on
      PARALLELISM (Repartition Streams)
      PARALLELISM (Distribute Streams)
      Sort
      
      when the cost on these are high?
      is sort related only to ORDERBY or could it be other factors also?
0
Comment
Question by:25112
  • 2
3 Comments
 
LVL 48

Accepted Solution

by:
PortletPaul earned 500 total points
ID: 41749502
I suggest you read the following to get an understanding of parallelism in SQL Server:
https://www.simple-talk.com/sql/learn-sql-server/understanding-and-using-parallelism-in-sql-server/

SORT is most commonly associated with ORDER BY, but other operations such as "select distinct" or "union" might result in a need to sort the data within an execution plan.
0
 
LVL 5

Author Comment

by:25112
ID: 41765243
thanks Paul.
0
 
LVL 48

Expert Comment

by:PortletPaul
ID: 41766000
No problem. Thanks.
0

Featured Post

Backup Your Microsoft Windows Server®

Backup all your Microsoft Windows Server – on-premises, in remote locations, in private and hybrid clouds. Your entire Windows Server will be backed up in one easy step with patented, block-level disk imaging. We achieve RTOs (recovery time objectives) as low as 15 seconds.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
Ever needed a SQL 2008 Database replicated/mirrored/log shipped on another server but you can't take the downtime inflicted by initial snapshot or disconnect while T-logs are restored or mirror applied? You can use SQL Server Initialize from Backup…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

932 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now