open source columnar database

data to append, do nothing, return itself orig } else {//otherwise expand //grow in step s of initial size val capacity = Orig.capacity () val newSize = capacity + Size.max (CAPACITY/8 + 1) val pos = Orig.position () orig.clear () Bytebuffer . Allocate (NewSize) . Order (Byteorder.nativeorder ()) . Put (Orig.array (), 0, POS) } }......Finally call Mappartitionsrdd.cache () to cache the RDD and add it to the spark cache management.S

Article Title: configure the php environment for accessing the columnar database vertica. Linux is a technology channel of the IT lab in China. Including desktop applications, Linux system management, kernel research, embedded systems, open source, and other basic classification vertica is a column-based

Oracle, the database giant, has acquired InnobaseOy, a Finnish company closely related to MySQL, an open-source database vendor. The parties did not announce the specific terms of the transaction. Innobase is a database engine developed by InnoDB for storing data in MySQL da

The latest open source DBLayer, the original database operations can be so simple, open source dblayer DBLayer: I recently developed a lightweight orm framework for open-source database

Open-source Android development framework ------- PowerFramework experiences (4) Database Management DBFarmer and. netframework open-source DBFarmer is a collection of PowerFramework database management tools. Objects can be store

Label:First, why discard access?1. You need to install Access driver on the client's machine PS: This is more annoying, we all know that the simpler the better, install this is too cumbersome for users. 2. Poor performance during Operation PS: People who have used access know that this is a time-consuming query when it comes to large amounts of data. 3. No transaction support Many operations in the actual project need the original transaction support, as for the existence of the business people

Abstract: Almost all software project development needs the support of the database, at present, with the rapid development of open source technology, more and more data suppliers choose Open Source database, contribute to the cau

Open Source Distributed Database middleware MyCat source code analysis series, middleware mycat MyCat is an open-source Distributed Database middleware that is currently very popular.

Open source database MySQL source code and installer image site bitsCN.com In order to download the source code of Mysql 4.0.26, but find a series of mirror sites, so sort it out by the way. These images are searched by Google. if the following sites are invalid, you can t

, we still need to create a database in hubbledotnet, For details about how to create a database, see hubbledotnet open-source full-text search for database projects-create and delete databases. After creating the hubbledotnet databa