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File Document Storage (Cloud Storage)
Features (OCR, Scalaibility, Search, etc...)
Open Source examples (e.g. Next Cloud)
Some commercial examples
Flat file storage
XML databases
CSV databases
Relational databases
Normalization
Dependencies and Constrants
Scalability - replications, clusters
Open Source and commercial software (MySQL, PostrgreSQL, DM7, Oracle, etc.)
NoSQL Storage
Document Oriented Databases (MongoDB, CouchDB etc...)
Column Orientation (Canadra, Scylla etc...)
Search Orientation (Elasticsearch...
NewSQL
CAP Theorem
Opensource software (SequoiaDB, etc...)
Search Engines
Features (text processing, relevancy, etc...)
Open Source examples
Scalability, High Availability, Load Balacing, etc....
Traditional Datawherehouses
Business Inteligence, OLTP and Datawherehouse
Opensource and commercial solutions
MapReduce and Distributed Parallel Processing
Hadoop-like (Hive, HFS, Impala)
Distributed filesystem
Overview of opensource (Ceph etc...)
In-memory Databases
Opensource solution (e.g. ApacheIgnite)
Others
Hypertable (Google Bigtable)
BigQuery
AWS solutsion (S3, etc...)
Beyond present - future trends