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tutorials
Is MySQL 5.6 slower than MySQL 5.5? No, it's faster
Submitted by Webmaster on Friday February 22, 2013
MySQL 5.6 is believed to be the best MySQL release ever. In order to find out if it is true or not I ran some benchmarks and I am going to share the results with you in this tutorial. Please note that I only tested with default settings (in both cases) and using sysbench as a benchmarking tool, so its a pretty basic test. I highly recommend that you test on your particular workload before upgrading and share your results.
Category:
Database Management Systems > MySQL > Tips and Tricks
Tags:
Download, configure, compile, and install MySQL 5.6
Submitted by Webmaster on Wednesday February 06, 2013
MySQL 5.6 is the latest production-ready release of the most popular opensource database management system on the planet ie. MySQL.
Category:
Database Management Systems > MySQL > Installation
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Fast, parallel restore from SQL dumps (mysqldump) for MySQL
Submitted by Webmaster on Friday June 29, 2012
I have used the technique that I am going to describe below on several occasions to restore from a SQL dump generated using mysqldump. In some cases, the restore that had taken 2 days and still could not finish successfully was completed in 5-6 hours using this simple technique. Please keep in mind that this is not a pure parallel method but I'd say it is almost parallel and have proven to be faster than regular single-threaded restore.
Category:
Database Management Systems > MySQL > Tips and Tricks
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How to download and install MySQL on Mac OS X
Submitted by Webmaster on Wednesday May 23, 2012
MySQL is the most popular open source database management system. It allows you to quickly download and install and run a powerful database system on almost any platform available including Linux, Windows, and Mac OS X etc.
Category:
Database Management Systems > MySQL > Installation
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MySQL DATE_FORMAT function and ORDER BY
Submitted by Webmaster on Monday December 12, 2011
An interesting scenario that I came across today was the fact that if you use the same alias as the column name in a formatted string (using DATE_FORMAT) and you also use same alias in ORDER BY or GROUP BY clause then MySQL uses the string output of DATE_FORMAT to sort records rather than the actual date column.
Category:
Database Management Systems > MySQL > Tips and Tricks
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MySQL Query Cache not necessarily a bad thing
Submitted by Webmaster on Monday October 03, 2011
After reading about the query cache mutex contention, scalability issues on multi-cores, and several people recommending disabling query cache on multi-core machines. I decided to give it a try and disable it to improve performance and since I was also seeing a lot of "freeing items" states for my queries (mysql works on query cache for part of the time query is in that state).
Category:
Database Management Systems > MySQL > Tips and Tricks
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Download all Aspersa MySQL tools/scripts through a single command
Submitted by Webmaster on Wednesday August 10, 2011
According to Aspersa's user manual, "Aspersa is a collection of open-source system utilities primarily designed to ease the work of Percona consultants. This manual is the primary documentation for Aspersa tools. Please contribute your improvements."
Category:
Database Management Systems > MySQL > Tools
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Download all maatkit scripts through a single command
Submitted by Webmaster on Wednesday August 10, 2011
According to maatkit home page, Maatkit is a toolkit for users, developers, and administrators of open-source databases. It is high-quality, formally tested software that is well documented and has an active open-source developer community.
Category:
Database Management Systems > MySQL > Tools
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How to make class diagrams using Composition
Submitted by Webmaster on Wednesday July 13, 2011
Before we move on to making class diagram for this problem lets discuss what is composition relation and how we use it, composition has a solid black diamond symbol.
Category:
Miscellaneous > UML > Resources
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How to make use case diagram using Generalization in UML
Submitted by Webmaster on Wednesday July 13, 2011
Purpose of this tutorial is to give you understanding of how to use generalization, include and extend relationships when making use case diagrams.
Category:
Miscellaneous > UML > Resources
