open source graph database

Article title: open-source embedded database BerkeleyDB (1 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Although a C/S-based relat

whether the data in the database has changed at this time, in the WHERE clause, the original value of each column in the entire row is used as the judgment condition (each row of dataset passes through system. data . Datarowversion maintains four statuses. This prevents the sqldatasource control from returning the updated data in the database or the sqldatasource control after dataview (Dataset) is updated

open-source databases. Few people have heard of sharding for commercial databases. The current industry trend is basically to embrace scale out and gradually release from scale up. 　　Sharding application scenarios Any technology can play its due role in a suitable situation. The same is true for sharding. Online games, Im, and BSP are suitable for sharding application scenarios. In common, abstract data ob

With the development of Internet technology, the traditional relational database can not be satisfied with the storage and analysis of massive data, thus deriving a database NoSQL (not only SQL) which is different from the relational database.The more mature nosql in foreign countries have mongodb,cassandra,tokumx and so on, not listed.As far as I know, bat and other giants have their own nosql projects, so

November February 15 (Dai xunyan compiled): according to an external report, Oracle announced the acquisition of open source database vendor Sleepycat on Tuesday. This is the re-acquisition of open source database companies after

" Selectm). FirstOrDefault (); Zhangsan.password="678"; Db. Update (Zhangsan); //Delete Data vardata = db. Userinfo.firstordefault (m = M.username = ="John Doe"); if(Data! =NULL) {db. Delete (data); } //Commit a transactiondb.committransaction (); } Catch { //rolling back a transactiondb. RollbackTran

Open source database traffic audit MySQL SnifferMy most respected database security product is a traffic-based database audit, because it does not need to change the network structure, and the most critical is that it does not affect the performance of the

Tags: blog http io os using AR java for strongAmoeba (amoeba) project is an open source framework, launched in 2008 to launch a amoeba for MySQL software;This software is dedicated to MySQL's distributed database front-end agent layer, which mainly serves as the SQL routing function when the application layer accesses MySQL, and focuses on the development of the

Open source database connection pools in Java are available in the following ways:1, c3p0 c3p0 is an open source JDBC connection pool that is published in the Lib directory with Hibernate, including connection and statement to implement JDBC3 and JDBC2 extension specificatio

Label:sqlite-Open source, cross-platform, compact relational database-1 Learn SQLite database in 1 hours 1. Introduction SQLite is an open-source, embedded relational database that impl

PostgreSQL is an object-relational database management system (ORDBMS). It is also a free software database system with the most powerful features and the most complex features. it originated from the database research program of Berkeley (BSD) and is currently one of the most important open-