1- # ArangoDB
1+ ArangoDB
22
33ArangoDB is a multi-model, open-source database with flexible data models for
44documents, graphs, and key-values. Build high performance applications using a
55convenient SQL-like query language or JavaScript extensions. Use ACID
6- transactions if you require them. Scale horizontally and vertically with a few
7- mouse clicks.
8- The supported data models can be mixed in queries and allow ArangoDB to be the
6+ transactions if you require them. Scale horizontally with a few mouse clicks.
7+ The supported data models can be mixed in queries and allow ArangoDB to be the
98aggregation point for your data.
10- To get started, try one of our 10 Minutes Tutorials in your favorite
11- programming language or try one of our [ArangoDB Cookbook recipes](https://docs.arangodb.com/cookbook) .
12- For the impatient: [ download and install ArangoDB](https://www.arangodb.com/download. Then start the server arangod and
9+ To get started, try one of our 10 minutes tutorials in your favourite
10+ programming language or try one of our ArangoDB_Cookbook_recipes .
11+ For the impatient: download and install ArangoDB. Start the server arangod and
1312point your browser to http://127.0.0.1:8529/.
1413
15- ## Key Features in ArangoDB
14+ Key Features in Ara
8000
ngoDB
1615
17- * Multi-Model Documents, graphs and key-value pairs: model your data as you
18- see fit for your application
19- * Joins: Conveniently join what belongs together for flexible ad-hoc querying,
20- less data redundancy
21- *Transactions: Easy application development keeping your data consistent and
22- safe. No hassle in your client
2316
24- Joins and Transactions are key features for flexible, secure data designs,
25- widely used in RDBMSs that you won’t want to miss in NoSQL products. You
26- decide how and when to use Joins and strong consistency guarantees, keeping all
27- the power for scaling and performance as choice .
28- Furthermore, ArangoDB offers a microservice framework called Foxx to build your
29- own Rest API with a few lines of code .
17+ * Multi-Model: Documents, graphs and key-value pairs — model your data as you
18+ see fit for your application.
19+ * Joins: Conveniently join what belongs together for flexible ad-hoc querying,
20+ less data redundancy .
21+ * Transactions: Easy application development keeping your data consistent and
22+ safe. No hassle in your client .
3023
31- ## Key features include:
24+ Here is an AQL query that makes use of all those features:
25+ AQL Query Example AQL Query Example
26+ Joins and transactions are key features for flexible, secure data designs,
27+ widely used in relational databases but lacking in many NoSQL products.
28+ However, there is no need to forego them in ArangoDB. You decide how and when
29+ to use joins and strong consistency guarantees, without sacrificing performance
30+ and scalability.
31+ Furthermore, ArangoDB offers a JavaScript framework called Foxx that is
32+ executed in the database server with direct access to the data. Build your own
33+ data-centric microservices with a few lines of code:
34+ Microservice Example
35+ Microservice Example Microservice Example
36+ By extending the HTTP API with user code written in JavaScript, ArangoDB can be
37+ turned into a strict schema-enforcing persistence engine.
38+ Next step, bundle your Foxx application as a docker_container and get it
39+ running in the cloud.
40+ Other features of ArangoDB include:
3241
3342* Schema-free schemata let you combine the space efficiency of MySQL with the
3443 performance power of NoSQL
@@ -37,30 +46,61 @@ own Rest API with a few lines of code.
3746* JavaScript for all: no language zoo, you can use one language from your
3847 browser to your back-end
3948* ArangoDB is multi-threaded - exploit the power of all your cores
40- * Flexible data modeling : model your data as combination of key-value pairs,
49+ * Flexible data modelling : model your data as combination of key-value pairs,
4150 documents or graphs - perfect for social relations
4251* Free index choice: use the correct index for your problem, be it a skip list
4352 or a fulltext search
4453* Configurable durability: let the application decide if it needs more
4554 durability or more performance
46- * No-nonsense storage: ArangoDB uses all of the power of modern storage
47- hardware, like SSD and large caches
4855* Powerful query language (AQL) to retrieve and modify data
4956* Transactions: run queries on multiple documents or collections with optional
5057 transactional consistency and isolation
5158* Replication and Sharding: set up the database in a master-slave configuration
5259 or spread bigger datasets across multiple servers
5360* It is open source (Apache Licence 2.0)
5461
55- ## More Information
62+ For more in-depth information read the design_goals_of_ArangoDB
63+
64+ Latest Release - ArangoDB 2.6
65+
66+ The What’s_new_in_ArangoDB_2.6 can be found in the documentation.
67+ New collection export HTTP REST API: ArangoDB now provides a dedicated
68+ collection export API, which can take snapshots of entire collections more
69+ efficiently than the general-purpose cursor API. The export API is useful to
70+ transfer the contents of an entire collection to a client application.
71+ Added batch document removal and lookup commands: The commands
72+ collection.lookupByKeys(keys) and collection.removeByKeys(keys) have been added
73+ for collection objects. These can be used to perform multi-document lookup and
74+ removal operations efficiently from the ArangoShell.
75+ Added AQL UPSERT command: This adds an UPSERT statement to AQL that is a
76+ combination of both INSERT and UPDATE / REPLACE. The UPSERT will search for a
77+ matching document using a user-provided example. If no document matches the
78+ example, the insert part of the UPSERT statement will be executed. If there is
79+ a match, the update / replace part will be carried out.
80+ We have simplified the return value syntax for data-modification AQL queries,
81+ added an alternative implementation for AQL COLLECT that uses a hash table for
82+ grouping and does not require its input elements to be sorted.
83+ Other optimizations and speedups in AQL relate to subqueries, return values and
84+ queries containing big IN lists for index lookups.
85+ Arangoimp can now optionally update or replace existing documents, provided the
86+ import data contains documents with _key attributes.
87+ Foxx Improvements
88+ Added Configuration and Dependencies so that manifests can now define
89+ configuration options, as well as dependencies on other Foxx apps. With the
90+ Mocha Test framework you can now write_tests_for_your_Foxx_apps. The API
91+ documentation has been updated to Swagger 2.
92+
93+ More Information
5694
57- Please check the installation manual for installation and compilation
95+ Please check the Installation_Manual for installation and compilation
5896instructions.
97+ The User_Manual has an introductory chapter showing the basic operations of
98+ ArangoDB.
5999
60- ## Stay in Contact
100+ Stay in Contact
61101
62- Please note that there will be bugs and we would really appreciate it if you
63- report them:
102+ We really appreciate feature requests and bug reports. Please use our Github
103+ issue tracker for reporting them:
64104https://github.com/arangodb/arangodb/issues
65105You can use the Google group for improvements, feature requests, comments
66106http://www.arangodb.com/community
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