NoSQLz is a consistent key-value big data store ( NoSQL database) for

z/OS z/OS is a 64-bit operating system for IBM z/Architecture mainframes, introduced by IBM in October 2000. It derives from and is the successor to OS/390, which in turn was preceded by a string of MVS versions.Starting with the earliest: * ...

IBM systems.NoSQLz project homepage
/ref> It was developed by systems programmer Thierry Falissard in 2013. The purpose was to provide a low-cost alternative to all proprietary mainframe

DBMS In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases s ...

. NoSQLz is

proprietary software Proprietary software is software that is deemed within the free and open-source software to be non-free because its creator, publisher, or other rightsholder or rightsholder partner exercises a legal monopoly afforded by modern copyright and i ...

. Version 1 is

freeware Freeware is software, most often proprietary, that is distributed at no monetary cost to the end user. There is no agreed-upon set of rights, license, or EULA that defines ''freeware'' unambiguously; every publisher defines its own rules for t ...

Distinctive features

NoSQLz only provides basic

create, read, update and delete In computer programming, create, read, update, and delete (CRUD) are the four basic operations of persistent storage. CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information u ...

(CRUD) functions. It is designed to be very straightforward and easy to implement. ACID properties are provided, so as to have "real transactions", through

optimistic concurrency control Optimistic concurrency control (OCC), also known as optimistic locking, is a concurrency control method applied to transactional systems such as relational database management systems and software transactional memory. OCC assumes that multiple tran ...

timestamp-based concurrency control In computer science, a timestamp-based concurrency control algorithm is a non-lock concurrency control method. It is used in some databases to safely handle transactions, using timestamps. Operation Assumptions * Every timestamp value is unique an ...

and

multiversion concurrency control Multiversion concurrency control (MCC or MVCC), is a concurrency control method commonly used by database management systems to provide concurrent access to the database and in programming languages to implement transactional memory. Description ...

(MVCC).

Interfaces

Unlike version 1, version 2 of NoSQLz is chargeable and supports

IBM Parallel Sysplex In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS. Used for disaster recovery, Parallel Sysplex combines data sharing and parallel computing to allow a cluster of up to 32 systems ...

. The NoSQLz DBMS can be interfaced in Rexx, Cobol,

IBM High Level Assembler High Level Assembler or HLASM is IBM's current assembler programming language for its z/OS, z/VSE, z/VM and z/TPF operating systems on z/Architecture mainframe computers. There is also a version that runs on Linux, primarily intended for sys ...

, etc.

References

{{Reflist

External links

CBT Tape File #910
NoSQLz DBMS from Thierry Falissard Big data products Proprietary database management systems NoSQL