- Developer
- Country of Origin
- US
- Start Year
- 1987
- Acquired By
- Project Type
- Commercial
- Written in
- C
- License
- Proprietary
Data Model
NonStop SQL supports the basic features of relational database management systems. What distinguish it from many other relational DBMS are the additional features providing excellent OLTP performance, availability, and scalability.
Indexes
NonStop SQL supports B+ tree index. By default, the primary key is used as the index of a table. To speed up the non-primary key look up, an index table can be created based on selected columns.
Storage Architecture
The data of every table is stored in one or more disk files. Each disk file has a label storing the name and catalog information of the associated table.
Storage Model
NonStop SQL uses the N-ary Storage Model, which is appropriate for heavy OLTP workloads.
Views
Whenever a view is created, NonStop SQL stores a view definition instead of the materialized table. Whenever a user selects data from a view, the data is directly retrieved from the underlying base tables.
Citations
3 sources- https://www.hpe.com/us/en/servers/nonstop.html hpe.com
- Introduction to NonStop SQL/MP hpe.com
- NonStop SQL - Wikipedia wikipedia.org