Hibernate3.6 documents notes on transactions and concurrency policies
Possible life cycles of hibernate sessions: 1. Operation (execution of an SQL statement) 2. Request 3. Open Session in view (derived from request) 4. Conversion
Work Unit:
This article turns from: http://blog.jobbole.com/87584/introductionSome developers often use the terminal console to work, resulting in the eventual opening of too many tabs. If you are one of them, or you are practicing pairing programming, then I
3. database cache size We talked about how to share execution plans from the programmer's perspective. Next let's take a look at what DBA can do for the shared execution plan. First, we need to know that the execution plan of each statement is saved
Upstart IntroductionIf your Linux distribution is Ubuntu, you may find that you can't find the/etc/inittab file on your computer because Ubuntu uses a new init system called upstart. The reason for developing upstartAbout 2006 years or earlier,
In recent years, the Linux system init process has undergone two major evolution, the traditional sysvinit has gradually faded out of the historical stage, the new upstart and systemd each have the characteristics, more and more Linux distribution
From Sysvinit to SystemdIn recent years, the Linux system init process has undergone two major evolution, the traditional sysvinit has faded out of the historical stage, the new system upstart and SYSTEMD each have the characteristics, but more and
No extra effort required to view Json output at any time
"No extra effort required" means that when you need to view the Json output, you only need to turn your eyes around (you may need to at least two more mouse clicks, I'm afraid) you can quickly
No extra effort to view JSON output at any time"No extra effort" means that when you need to look at the JSON output, just turn the eyeball (and maybe at least two more clicks) to find the result quickly.
There are a lot of ways to view JSON output,
8 tips for PHP scripts (2 ). Session usage PHP4.0 has a feature that has always been expected, which is supported by PHP sessions. In contrast, PHP3.0 users have to use third-party libraries or full sessions.
PHP 4.0 has an always-expected
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