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Flash-optimized in-memory open source NoSQL database. ALTIBASE HDB: Altibase Corporation 1999 Java, C, C++, JDBC, ODBC, SQL Proprietary Altibase is a hybrid DBMS that combines an in-memory database with a conventional disk-resident database in a single unified engine.
An in-memory database (IMDb, or main memory database system (MMDB) or memory resident database) is a database management system that primarily relies on main memory for computer data storage. It is contrasted with database management systems that employ a disk storage mechanism. In-memory databases are faster than disk-optimized databases ...
keep the working copy of the data in-memory (though there is now a variant that keeps the data in a flash-based file); use a client–server architecture to protect the data from corruption by rogue application code; have an 'active query' mechanism to update client applications when relevant database changes occur;
Database objects are concepts that refer to relational or sequential databases and persist being valid in new models. Tables , triggers , columns , indexes are examples of database objects, [ 7 ] which are present in O-PL/SQL, but with the same meaning of the notion of Java objects, specifically an element of a set that has its existence ...
In 2004, Altibase integrated the in-memory database with a disk-resident database to create a hybrid DBMS, released version 4.0 and renamed it as ALTIBASE HDB. [6] [7] Altibase released version 5.5.1 and 6.1.1 in 2012, version 6.3.1 in November 2013, and 6.5.1 in May 2015. [8] Altibase claims that this is the world's first hybrid DBMS [citation ...
Both in-memory and disk based engines coexist inside the same server process, and a single SQL statement can access data from both engines. [ citation needed ] The High Availability option maintains two copies of the data synchronized at all times. solidDB can be embedded directly into applications and run virtually unattended for lower total ...
Apache Ignite's database uses RAM as the default storage and processing tier, thus, belonging to the class of in-memory computing platforms. [2] The disk tier is optional but, once enabled, will hold the full data set whereas the memory tier [ 3 ] will cache full or partial data set depending on its capacity.
Database name Language implemented in Notes Apache Doris Java & C++ Open source (since 2017), database for high-concurrency point queries and high-throughput analysis. Apache Druid: Java Started in 2011 for low-latency massive ingestion and queries. Support and extensions available from Imply Data. Apache Kudu: C++