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Java-based service-oriented application with reliability, collaboration, and scalability.Claroline Claroline is an open-source eLearning and eWorking system designed to build an efficient and easy-to-use online learning and course management system. It particularly emphasizes the management of cooperative learning activities, supports learning routes, learning tracking functions, built-in wiki, group collaboration, online exercises and homework, and supports real-time online communication.Atut

name": {"global": {"sn": "server name", "pn": "role name", "lat": "1359469539 ", "level": 14, "icon": 26, "good": "18", "blocked": "4", "honor": "1", "save_hero_100 ": "0", "cache": 1}, "normal": {"sn": "server name", "pn": "role name", "clat ": quot; 1359469539 quot;, quot; olat quot;: quot; 0 quot;, quot; w quot;: 19, quot; lo quot;: 11, quot; le quot;: 0, quot; o_w quot;: quot ", "o_lo": "0", "o_le": "0", "cache": 1}, "zdl": {"eloSc

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1. What is Phoenix? Apache Phoenix is a high-performance relational database running on HBase, and through Phoenix you can access hbase as you would access a relational database using JDBC. Phoenix, the table of operations and the data stored on hbase. Phoenix only needs to be associated with the HBase table. Then use the tool to perform some read and write operations. Phoenix can only be seen as a substitute for the hbase syntax tool. Although Java can use JDBC to connect to Phoenix and then ma

Tags: terminal ati Insert remove may create symbol numbers insertI. Introduction to Phoenix 1. What is Phoenix?There are many query tools for hbase such as: Hive,tez,impala,shark/spark,phoenix, etc. Today is mainly about Phoenix.Phoenix is a Hadoop-based OLTP technology implemented on HBase that features low latency, transactional, SQL-available, and JDBC interfaces. Phoenix also offers an hbase two-level index solution that enriches the diversity of hbase queries and inherits the characteristic

. Defaultsaveeventlistener. Performsaveorupdate(Saveorupdateevent event) in NHibernate. Event. Default. Defaultsaveorupdateeventlistener. Onsaveorupdate(Saveorupdateevent event) in NHibernate. Impl. Sessionimpl. Firesave(Saveorupdateevent event) in NHibernate. Impl. Sessionimpl. Save(Object obj) in WindowsFormsApplication1. Form1. Form1_load (Object sender, EventArgs e) Location C:\Users\JianKunKing\Desktop\NHibernate\NHibernate03\WindowsFormsApplication1 \form1. CS: line number the-------------

Phoenix with JDBC and then manipulate hbase, it cannot be used in OLTP in a production environment. in the context of online transaction processing, low latency is required, while Phoenix does some optimizations when querying hbase, but the latency is still not small. So it is still used in Olat, and then the results are returned to store.Phoenix official online, the explanation of Phoenix has been very good. If English is good, can crossing net, mor