473,385 Members | 1,907 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,385 software developers and data experts.

Mysql optimization

RA
I have table with 7 millions of records , i want to know if some one
can help top optimize the select requests, i created the necessary
indexex but some specific requests still slow.

Thanks

Oct 5 '05 #1
2 1529
>I have table with 7 millions of records , i want to know if some one
can help top optimize the select requests, i created the necessary
indexex but some specific requests still slow.


You can't optimize a table without knowing its structure and without
knowing the specific queries that you're having problems with.

Include that info with your question.

Try using EXPLAIN SELECT ... to see if it's actually using the
indexes you created.
Gordon L. Burditt
Oct 5 '05 #2
He want the answers like +Ram , +HD.....

"Gordon Burditt" <go***********@burditt.org> ¦b¶l¥ó
news:11*************@corp.supernews.com ¤¤¼¶¼g...
I have table with 7 millions of records , i want to know if some one
can help top optimize the select requests, i created the necessary
indexex but some specific requests still slow.


You can't optimize a table without knowing its structure and without
knowing the specific queries that you're having problems with.

Include that info with your question.

Try using EXPLAIN SELECT ... to see if it's actually using the
indexes you created.
Gordon L. Burditt

Oct 7 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

8
by: wlcna | last post by:
mysql v4.0.16: I had been using mysql with innodb and thought that was fine, until i used it for something requiring a few - perhaps slightly involved - joins, and have now seen the performance...
5
by: Fred | last post by:
Hi all, I have done a lot of experimentations using several "or" predicates within an sql select statements on mysql. My only conclusion so far is that whatever syntax or order I use it is...
1
by: steve | last post by:
I am researching mysql performance optimization. Does anyone who good books, or good url’s for this. I have seen a couple of good books on Amazon, but if you have read anything good, let me...
9
by: elyob | last post by:
Hi, I'm looking at storing snippets of details in MySQL about what credit cards a business excepts. Rather than have a whole column for Visa, another for Amex etc ... I am looking at having a...
39
by: Mairhtin O'Feannag | last post by:
Hello, I have a client (customer) who asked the question : "Why would I buy and use UDB, when MySql is free?" I had to say I was stunned. I have no experience with MySql, so I was left sort...
1
by: Tim | last post by:
Here is a list of a few very simple tips for optimizing your php/mysql applications. Keep these in mind while developing to survive the digg-effect. ...
1
by: matthewjbarr | last post by:
Hi there, Apologies for cross-posting... Does anyone know of any good tools - third party or otherwise - that will check your MySQL database for potential problems? I'm thinking of corrupted...
6
by: ojorus | last post by:
Hi! My company make several flash-based games, and I use php to communicate with mysql to provide highscore-lists. My problem is this: When I save a player's score in the mysql-table, I want to...
1
by: amcnpr33 | last post by:
Please forward this or reply to beth@laurus-group.com MySQL DBA/Architect - An innovator in the Internet Search Marketing industry is looking for talented, fun team members. MySQL DBA/Architect...
4
by: Pseudonyme | last post by:
Dear Sirs and Madams, Receive as information that storing a MYSQL result under $_SESSION was accelerating web page displays processes ? Absolutly needed but impossible to get this working ! I...
0
by: Charles Arthur | last post by:
How do i turn on java script on a villaon, callus and itel keypad mobile phone
0
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
0
BarryA
by: BarryA | last post by:
What are the essential steps and strategies outlined in the Data Structures and Algorithms (DSA) roadmap for aspiring data scientists? How can individuals effectively utilize this roadmap to progress...
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.