Programming

This book shows you what a real relational product would be like, and how and why it would be so much better than what’s currently available. Most books try to use SQL as a vehicle for teaching relational theory, but this book deli...
This book shows you what a real relational product would be like, and how and why it would be so much better than what’s currently available. Most books try to use SQL as a vehicle for teaching relational theory, but this book deliberately takes the opposite approach. Its primary aim is to teach relational theory as such. Then it uses that theory as a vehicle for teaching SQL, showing in particular how that theory can help with the practical problem of using SQL correctly and productively.
about 1 hour ago
How do you make your enterprise applications or sites available on an assortment of mobile devices as well as the desktop? This hands-on guide shows you how to build HTML5 applications that will satisfy both requirements.
How do you make your enterprise applications or sites available on an assortment of mobile devices as well as the desktop? This hands-on guide shows you how to build HTML5 applications that will satisfy both requirements.
about 1 hour ago
Phusion Passenger is software that deploys Ruby and Python web apps, by integrating into Apache and Nginx and turning them into a fully-featured application server. It is very fast, stable and robust and thus used by the likes of New Yor...
Phusion Passenger is software that deploys Ruby and Python web apps, by integrating into Apache and Nginx and turning them into a fully-featured application server. It is very fast, stable and robust and thus used by the likes of New York Times, AirBnB, Symantec, Pixar, etc. It comes with many features that makes your life easier and your application perform better. Phusion Passenger is under constant maintenance and development. Version 4.0.3 is a bugfix release. Phusion Passenger also has an Enterprise version which comes with a wide array of additional features. By buying Phusion Passenger Enterprise you will directly sponsor the development of the open source version. Recent changes Better protection is now provided against application processes that are stuck and refuse to shut down cleanly. Since version 4.0.0, Phusion Passenger already forcefully shuts down all processes during web server shutdown. In addition to this, 4.0.3 now also forcefully shuts down processes that take more than 1 minute to shut down, even outside the context of web server shutdowns. This feature does not, however, protect against requests that take too long. Use PassengerMaxRequestTime (Apache) or passenger_max_request_time (Nginx) for that. Fixed a crash in the HelperAgent which results in frequent process restarts in some traffic patterns. Fixes issue #862. Fixed a problem that prevents processes from being spawned correctly if the user’s bashrc changes working directory. Fixes issue #851. passenger-status now also displays CPU usage. The installer now checks for checksums when automatically downloading PCRE and Nginx. Contributed by Joshua Lund. An error is now printed when trying to daemonize Phusion Passenger Standalone on Ruby implementations that don’t support forking. Contributed by Benjamin Fleischer. Although Phusion Passenger already supported JRuby, installing Phusion Passenger with JRuby was not possible. This has been fixed. Various other minor bug fixes. Installing 4.0.3 Quick install/upgrade Phusion Passenger Enterprise users can download the Enterprise version of 4.0.3 from the Customer Area. Open source users can install the open source version of 4.0.3 with the following commands: gem install passenger passenger-install-apache2-module passenger-install-nginx-module You can also download the tarball at Google Code. We strongly encourage you to cryptographically verify files after downloading them. In-depth instructions In-depth installation and upgrade instructions can be found in the Installation section of the documentation. The documentation has been updated to cover 4.0 changes, including Enterprise features. You can view them online here: Apache manual Nginx manual Final If you would like to stay up to date with Phusion news, please fill in your name and email address below and sign up for our newsletter. We won’t spam you, we promise. Email address First and last name
about 2 hours ago
With this simple database table: class Artist(models.Model): id = models.IntegerField(primary_ke y=True) name = models.CharField(max_length=25 5L, blank=True) prefix = models.CharField(max_length=32 L, blank=True) class Meta: db_ta...
With this simple database table: class Artist(models.Model): id = models.IntegerField(primary_ke y=True) name = models.CharField(max_length=25 5L, blank=True) prefix = models.CharField(max_length=32 L, blank=True) class Meta: db_table = 'artist' I want to be able to get a list of the first letter of the names with a
about 2 hours ago
With this simple database table: class Artist(models.Model): id = models.IntegerField(primary_ke y=True) name = models.CharField(max_length=25 5L, blank=True) prefix = models.CharField(max_length=32 L, blank=True) class Meta: db_ta...
With this simple database table: class Artist(models.Model): id = models.IntegerField(primary_ke y=True) name = models.CharField(max_length=25 5L, blank=True) prefix = models.CharField(max_length=32 L, blank=True) class Meta: db_table = 'artist' I want to be able to get a list of the first letter of the names with a
about 2 hours ago
Normal 0 false false false EN-US X-NONE X-NONE ...
Normal 0 false false false EN-US X-NONE X-NONE ... [Read More]
about 2 hours ago
Percona Server for MySQL version 5.5.31-30.3Percona is glad to announce the release of Percona Server for MySQL 5.5.31-30.3 on May 24, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.31,...
Percona Server for MySQL version 5.5.31-30.3Percona is glad to announce the release of Percona Server for MySQL 5.5.31-30.3 on May 24, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.31, including all the bug fixes in it, Percona Server 5.5.31-30.3 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.5.31-30.3 milestone at Launchpad.New Features:Percona Server has ported the Atomic write support for Fusion-io devices patch from MariaDB. This feature adds atomic write support for directFS filesystem on Fusion-io devices. This feature implementation is considered BETA quality.Percona Server has introduced innodb_read_views_memory and innodb_descriptors_memory status variables in the Extended Show Engine InnoDB Status to improve InnoDB memory usage diagnostics.Bugs Fixed:Fix for bug #1131187 introduced a regression that could cause a memory leak if query cache was used together with InnoDB. Bug fixed #1170103.Fixed the RPM packaging regression that was introduced with the fix for bug #710799. This regression caused mysql schema to be missing after the clean RPM installation. Bug fixed #1174426.Fixed the Percona-Server-shared-55 and Percona-XtraDB-Cluster-shared RPM package dependences. Bug fixed #1050654.Fixed the upstream bug #68999 which caused compiling Percona Server to fail on CentOS 5 and Debian squeeze due to older OpenSSL version. Bug fixed #1183610.If a slave was running with its binary log enabled and then restarted with the binary log disabled, Crash-Resistant Replication could overwrite the relay log info log with an incorrect position. Bug fixed #1092593.Fixed the CVE-2012-5615 vulnerability. This vulnerability would allow remote attacker to detect what user accounts exist on the server. This bug fix comes originally from MariaDB (see MDEV-3909). Bug fixed #1171941.Fixed the CVE-2012-5627 vulnerability, where an unprivileged MySQL account owner could perform brute-force password guessing attack on other accounts efficiently. This bug fix comes originally from MariaDB (see MDEV-3915). Bug fixed #1172090.mysql_set_permission was failing on Debian due to missing libdbd-mysql-perl package. Fixed by adding the package dependency. Bug fixed #1003776.Rebuilding Debian source package would fail because dpatch and automake were missing from build-dep. Bug fixed #1023575 (Stephan Adig).Backported the fix for the upstream bug #65077 from the MySQL 5.6 version, which removed MyISAM internal temporary table mutex contention. Bug fixed #1179978.Release notes for Percona Server for MySQL 5.5.31-30.3 are available in our online documentation. Bugs can be reported on the launchpad bug tracker.The post Percona Server for MySQL 5.5.31-30.3 now available appeared first on MySQL Performance Blog.
about 2 hours ago
Ever used VisualVM? This quick guide will quickly get you working with VisualVM in Eclipse or IntelliJ IDEA.
Ever used VisualVM? This quick guide will quickly get you working with VisualVM in Eclipse or IntelliJ IDEA.
about 3 hours ago
We're not sure how much stock you should put into this news, but we're putting it out there anyway because Microsoft has been so dodgy on the topic since it announced the Xbox One.read more
We're not sure how much stock you should put into this news, but we're putting it out there anyway because Microsoft has been so dodgy on the topic since it announced the Xbox One.read more
about 3 hours ago
Atlassian spent almost a year on improving JIRA project management tool. What has been done and what was expected for 6.0 version?
Atlassian spent almost a year on improving JIRA project management tool. What has been done and what was expected for 6.0 version?
about 3 hours ago