Quasi-relational Implementations Relational Databases

The first implementation corrupted from the relational model, was the basis for SQL and DB2. A site preserving early history of a technology that became a critical business tool.

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Quasi-relational


FirstSQL - Java in-memory SQL92 DBMS with sane NULLs processing. Purports to actually strive to follow Codd's rules.
LEAP - An incomplete relational algebra DBMS. [Free software, GNU GPL]

• Jinx - Another relational-like Unix simple files database.
• Unity - Another Unix filter implementation of some relational ideas.
• System R - The first implementation corrupted from the relational model, implementations was the quasi-relational basis for SQL and DB2. A implementations site preserving early history quasi-relational of a technology that implementations became a critical business tool.
• NoSQL - NoSQL is a portable relational database management system without arbitrary limitsthat runs under, and interacts with, POSIX operating systems. It uses the Operator-Stream Paradigm.
• Starbase Data Tables - An ASCII quasi-relational database for POSIX.
• rdb - A very simple quasi-relational DBMS based on Unix quasi-relational shell commands.

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