When a sequence is incremented twice when running SELECT NEXT VALUE FOR MYSEQ; and you are using the Microsoft JDBC driver with the selectMethod=cursor, remove the selectMethod=cursor option from the JDBC URL. The sequences will then be incremented correctly.
Spring is a widely used framework today, bringing many powerfull features and extensions to the Java core stack. However most of people tend to use these features without understanding their underlying mechanism.
Since there is no “magic” in real life, we are going to dig into some Spring features related to Transaction and Database in this serie of articles.
This first article is dealing with the famous @Transactional annotation, saving the developers the burden of managing low level transaction code.
Continue reading “Spring @Transactional explained | DuyHai’s Java Blog”
We’ve asked What The Heck Are You Actually Using NoSQL For?. We’ve asked 101 Questions To Ask When Considering A NoSQL Database. We’ve even had a webinar What Should I Do? Choosing SQL, NoSQL or Both for Scalable Web Applications.
Now we get to the point of considering use cases and which systems might be appropriate for those use cases. Continue reading “35+ Use Cases for Choosing Your Next NoSQL Database – High Scalability –”
By convention, type parameter names are single, uppercase letters. This stands in sharp contrast to the variable naming conventions that you already know about, and with good reason: Without this convention, it would be difficult to tell the difference between a type variable and an ordinary class or interface name.
The most commonly used type parameter names are:
- E – Element (used extensively by the Java Collections Framework)
- K – Key
- N – Number
- T – Type
- V – Value
- S,U,V etc. – 2nd, 3rd, 4th types
You’ll see these names used throughout the Java SE API and the rest of this lesson.
For excessively paranoid client authentication.
Organization & Common Name: Some human identifier for this server CA.
openssl genrsa -des3 -out ca.key 4096 openssl req -new -x509 -days 365 -key ca.key -out ca.crt
Design patterns are formalized best practices that the programmer can use to solve common problems when designing an application or system. Design patterns can speed up the development process by providing tested, proven development paradigms. Reusing design patterns helps to prevent subtle issues that can cause major problems, and it also improves code readability for coders and architects who are familiar with the patterns.
Deeplearning4j is the first commercial-grade, open-source, distributed deep-learning library written for Java and Scala. Integrated with Hadoop and Spark, DL4J is designed to be used in business environments, rather than as a research tool. Skymind is its commercial support arm.Deeplearning4j aims to be cutting-edge plug and play, more convention than configuration, which allows for fast prototyping for non-researchers. DL4J is customizable at scale. Released under the Apache 2.0 license, all derivatives of DL4J belong to their authors.By following the instructions on our Quick Start page, you can run your first examples of trained neural nets in minutes.
In my experience, when wuauserv starts eating memory, the best thing to do is to wait until it finishes installing the updates and then reboot.
If you can’t or aren’t willing to reboot now, you can always reset wuauserv with the following BAT script (right click & run as administrator):
net stop wuauserv net stop bits rd /s /q %windir%\softwaredistribution net start bits net start wuauserv wuauclt.exe /detectnow
Hope it helps.
Syrian ISPs are using sophisticated technologies to monitor and filter traffic. These boxes are DPI (Deep Packet Inspection) and what they do is sniff out every little packet flowing through them to find specific patterns and then they provide their administrator with the option to block traffic that matches these patterns. These boxes are very sophisticated and they don’t just filter traffic by src, dst or port, they filter traffic by the content the packets carry.