Use UTF-8 encoded/jmail component to send mail garbled problem

A long time ago listen to a friend said, use UTF-8 code to send mail, there will be garbled situation occurs. Recently for the company to develop support for multi-language Web sites, just want to use

The use of dom4j

DOM4J is an open source XML parsing package produced by, which is defined in its Web site as: DOM4J is a easy to use, open Source library for working with XML, XPath and XSLT on the Java pl

Common methods to improve DB2 query performance


Brief introduction With the increasing application of DB2, more and more database developers are confronted with the problem that the query is too complicated and the performance is difficult to be accepted in the process of project development. Thi

Flume-ng Source reading: Hbasesink

All the contents of the sink about HBase are under the Org.apache.flume.sink.hbase package. Each sink includes its own custom, all extends Abstractsink implements configurable. First, the Configure (context) method. The method is initialized to the

What's Sybase?

A brief introduction of Sybase database 1. Version In 1984, Mark B. Hiffman and Robert Epstern created Sybase and launched the Sybase database product in 1987. Sybase consists of three versions, one running under the UNIX operating system, the othe

DB2 provides a better way to achieve optimistic locking

In IBM I 6.1, DB2 provides users with a new feature (row change column) that can improve their algorithms for applications that need to use optimistic locks. Optimistic locking is a widely used technology based on web database applications that are s

Combining ansible technology to monitor storm cluster

1, my hosts configuration # vim/etc/hosts 123456789101112 STORM_ZK1 STORM_ZK2 STORM_ZK3 Storm_nimbus Storm_supervisor1 Storm_supervisor2 Storm_

Multiple hosting of Informix

I. Multi-resident Multiple-homed (multipleresidency) is the running of multiple online instances on the same host, with each online instance owning and managing its own processes, shared memory, and disk space. Multiple hosting does not mean install

Enable DB2 setting OpenStack environment in OpenStack to support DB2

OpenStack is an excellent cloud operating system, and it is wise for developers, administrators, and operators to have the skills associated with them in their virtual toolkit. Efficient cloud requires an efficient database and can accept multiple da

DB2 Multi-Partition Management summary

DB2 's multiple partitioning management is often a bit challenging, but many times the differences between multiple and single partitioning are not very large, as summarized below are common operations management commands: Start the database node fo

Application of IBM DB2 Common database in China UnionPay case

In the face of improving the ability of bank card information transfer processing and building the international famous bank card brand, China UnionPay needs to transform the old database platform, and improve the data processing ability, usability a

Optimizing DB2 application Performance with SQL statements

One of the important issues to consider when designing a new or analyzing an existing system is the design of the application. Even if the database is well designed and optimized, application design is not appropriate or a database that can cause per

DB2 Instructions guide for operating on machine

1. Startup instance (DB2INST1): Db2start 2. Stop instance (DB2INST1): Db2stop 3. List all instances (DB2INST1) Db2ilist 5. List the current instance: DB2 Get Instance 4. View the sample configuration file: DB2 Get DBM Cfg|more 5. Update Dat

Installation and configuration of DB2 Warehouse Enterprise Edition V9.5, part 1th

Brief introduction DB2 Warehouse combines the powerful data support of IBM DB2 and a set of IBM Business Intelligence (Business Intelligence) products to provide a comprehensive business intelligence platform and its application tools, These compone

Informix Dynamic Server Database segmented storage

Informix Dynamic Server segmented storage, also known as fragmented storage, is based on the principle of regularly dispersed records or indexes in a datasheet to different areas of the disk, to store data on multiple disks, and to increase the effic

The concept comparison between Notes database and relational database

We know that in the database theory, there are external patterns, patterns and internal patterns. The external mode (also known as child mode or user mode) is a description of the logical structure and characteristics of the local data used by the da

5 Open source cloud computing platform recommended

The following is a list of 5 well-known open source cloud computing platforms included in the open source China community. 1, Abicloud Enterprise-class open source cloud computing platform Abiquo's Open source cloud computing platform, "Abicloud",

Analysis of coordinated design of distributed core technology

Fourinone Introduction Fourinone (Chinese name "Sibuxiang") is a Tetraena distributed computing framework, before writing this framework, I have a long time to think about distributed computing, but also read the other open source framework written

Analysis of the change Data capture function of SQL 2008

One of the tasks in common enterprise data Platform management is the constant obsession with SQL Server DBAs, which is monitoring data updates. Many data applications need to capture updates to the business data table. I have seen several solutions:

Access to social networking web sites via OAuth, part 1th

Build a desktop Twitter client that supports OAuth OAuth is an open protocol that enables users to share their protected resources among different Web sites without worrying about the risk of a leak. OAuth is ideal for mixing up today's social netwo

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