Postgresql Free

Naresh Kumar is a software engineer and enthusiastic blogger, passionate and interested in programming and new things. 　　Recently, Naresh wrote a blog, the open source world's two most common database MySQL and PostgreSQL characteristics of the detailed analysis and comparison. If you're going to choose a free, open source database for your project, you may be hesitant between MySQL and PostgreSQL. MySQL and PostgreSQL are free, open source, powerful, and feature-rich databases ...

PostgreSQL supports most SQL standards and provides many other modern features: complex queries, foreign keys, triggers, views, transactional integrity, and multiple versioning concurrency control. Similarly, PostgreSQL can be extended in many ways, such as by adding new http://www.aliyun.com/zixun/aggregation/18278.html "> Data types, Functions, operators, aggregate functions, indexing methods, Process language. And because of the flexibility of the license, ...

Depth analysis of PostgreSQL and MySQL storage layer Li Haixiang DTCC2014 PostgreSQL is a POSTGRES developed by the University of California, Berkeley Computer Department, and is now renamed PostgreSQL, version 4.2-based Object Relational database management system (ORDBMS). PostgreSQL supports most SQL standards and provides many other modern features: complex queries, foreign keys, triggers, views, transactional integrity, and MVCC. ...

"Editor's note" with support for the widely used JSON data interchange format, the emergence of a new version of the PostgreSQL open source database marks its goal of pointing to the growing NoSQL market for relational data storage, especially the mongodb of popularity. Now, Enterprisedb has launched a free turnkey development environment that will make it easy for programmers to build Web applications with PostgreSQL's new NoSQL features. The following is the original: Enterprise-class number of PostgreSQL ...

As a software developer or DBA, one of the essential tasks is to deal with databases, such as MS SQL Server, MySQL, Oracle, PostgreSQL, MongoDB, and so on. As we all know, MySQL is currently the most widely used and the best free open source database, in addition, there are some you do not know or useless but excellent open source database, such as PostgreSQL, MongoDB, HBase, Cassandra, Couchba ...

Gallery is a foreign free open source Gallery photo album Software, based on PHP and MySQL, PostgreSQL and other databases. The function is very powerful, has the rich extension to be able to download, installs is very simple, has many plug-ins to be usable. In addition, the brand from Singapore is indeed the United States (Gallery), the series of products have casual wear and professional wear, involving casual trousers, skirts and so on. Gallery is a web-based photo management system developed in PHP, Gallery is very easy to use, including a configuration wizard, for the phase ...

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall last night into Google Analytics found keepaccounts.com traffic surge to 5000IP, into the keepaccounts.com administrator backstage view registered users also added 800 on February 25, 2009, reached the number of new registered users in the past several times. At ordinary times the amount of online accounting visits is 1000ip/day or so, registered users are only 200 people/day up and down. Intuition tells me that this anomaly is a ...

Open source projects because of its openness, free, free and flexible characteristics of the majority of developers love. In recent years, a lot of open source free things are popular. While cloud computing is the hottest technology term in recent time, cloud computing + open source is not a new event, now, there are more and more open source projects for the cloud, the overall development of cloud computing plays a vital role. Now let's take a look at the most popular 10 open source projects related to the cloud. 1. Open Source PAAs platform: Cloud Foundry and OpenShift Clo ...

The enterprise database market is huge, with the expertise of Oracle in this area, as well as the Cross-border giants of IBM (DB2) and Microsoft (SQL Server). They are similar to the open source database MySQL commonly used by small and medium-sized enterprises, belong to traditional relational database. It seems that the database market has developed very mature, the basic structure has been determined, so entrepreneurs have no chance? In fact, the emergence and development of new technologies always bring new opportunities. Just as the development and maturity of object-oriented programming technology, DB4O has spawned such pure object-oriented data ...

2010 should be remembered because SQL will die this year. This year, the relational database is on the verge of falling, and this year developers found they no longer needed long, laborious columns or tables to store data. 2010 will be the starting year for document databases. Although this momentum has lasted for many years, it is now the era of more and broader document-based databases. From cloud-based Amazon to Google, a large number of open source tools, and the ensuing CouchDB and MongoDB. So what is MongoD ...