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Firebase's first product was the Firebase Realtime Database, an API that synchronizes application data across iOS, Android, and Web devices, and stores it on Firebase's cloud. The product assists software developers in building real-time, collaborative applications.
This is a comparison of object–relational database management systems (ORDBMSs). Each system has at least some features of an object–relational database ; they vary widely in their completeness and the approaches taken.
Empress Embedded Database: Unlimited 2 63 −1 bytes 2 GB 32,767 2 GB 2 GB 64 bits 0000-01-01 9999-12-31 32 EXASolution: Unlimited Unlimited Unlimited 10,000 — 2 MB 128 bits 0001-01-01 9999-12-31 256 FileMaker: 8 TB 8 TB 8 TB 256,000,000 4 GB 10,000,000 1 billion characters, 10 −400 to 10 400, ± 0001-01-01 4000-12-31 100 Firebird ...
2.1 Proprietary: Yes Yes Yes Yes Yes Yes Yes Yes Yes Delphi Objective-C: Oracle Enterprise Manager: Oracle Corp. 2015-06-16 12.1.0.5 Proprietary: Yes No Yes Yes Yes Yes IBM Db2, Sybase, TimesTen: Java: Oracle SQL Developer: Oracle Corp. 2018-04-05 18.1.0.095.1630 Proprietary: Yes Yes Yes Yes Yes No Yes Yes Yes Microsoft Access, Sybase, IBM Db2 ...
However, if contention for data resources is frequent, the cost of repeatedly restarting transactions hurts performance significantly, in which case other concurrency control methods may be better suited. However, locking-based ("pessimistic") methods also can deliver poor performance because locking can drastically limit effective concurrency ...
10.2.1 C++, C#, Java, Python, Smalltalk and XML: SQL superset Proprietary: Distributed, Parallel Query Engine ObjectStore: 7.2 (July 2011) C++, Java, interoperable with .NET SQL subset (also has own object query language) Proprietary: Embedded database supporting efficient, distributed management of C++ and Java objects.
The name is a three-letter acronym for DataBase Manager, and can also refer to the family of database engines with APIs and features derived from the original dbm. The dbm library stores arbitrary data by use of a single key (a primary key) in fixed-size buckets and uses hashing techniques to enable fast retrieval of the data by key.
In parallel processing, many operations are performed simultaneously, as opposed to serial processing, in which the computational steps are performed sequentially. Parallel databases can be roughly divided into two groups, the first group of architecture is the multiprocessor architecture, the alternatives of which are the following: