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Compiling SQL into System/370 Machine Language
- IEEE Annals of the History of Computing
- IEEE Computer Society
- Volume 34, Number 4, October–December 2012
- pp. 49-50
- Article
- Additional Information
To improve performance of repetitive transactions in System R, IBM's Raymond Lorie devised a scheme to create, save, and reuse a generalized access plan that could be instantiated with specific values. The author recounts his role in compiling such generalized access plans into machine code for even better performance.