Solved

in mysql database 5.14 even select causes locks, is there any mitigation?

Posted on 2010-09-21
3
442 Views
Last Modified: 2012-05-10
in mysql database 5.14 even select causes locks, is there any mitigation?
0
Comment
Question by:AGAFFAR
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 11

Expert Comment

by:mattibutt
ID: 33732435
Does it get locked when you try to execute a query is it some third party application database
0
 
LVL 1

Author Comment

by:AGAFFAR
ID: 33732641
<Does it get locked when you try to execute a query >
yes, if it is complex query

< is it some third party application database >
no, it is main database

0
 
LVL 60

Accepted Solution

by:
Kevin Cross earned 500 total points
ID: 33735207
Yes, it most systems, there will be a lock of some sort on read.  For SQL server you can get around this using WITH(NOLOCK) or setting transaction isolation level.  For MySQL, you don't have WITH(NOLOCK), so you just use the isolation level READ UNCOMMITTED.

Here is a good writeup on the topic:
http://articles.itecsoftware.com/mysql/with-nolock-table-hint-equivalent-for-mysql
0

Featured Post

Turn Insights Into Action

You’ve already invested in ITSM tools, chat applications, automation utilities, and more. Fortify these solutions with intelligent communications so you can drive business processes forward.

With xMatters, you'll never miss a beat.

Question has a verified solution.

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

Does the idea of dealing with bits scare or confuse you? Does it seem like a waste of time in an age where we all have terabytes of storage? If so, you're missing out on one of the core tools in every professional programmer's toolbox. Learn how to …
Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

696 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