PQL

PQL
Paradigm	Multi-paradigm: declarative
Family	Query language
First appeared	2014
Stable release
OS	Cross-platform
File formats	.pql
Website	processquerying.com/pql/
Major implementations
	PQL at GitHub
Influenced
	SQL

PQL (Process Query Language^[1]^[2]) is a special-purpose programming language for managing process models based on information about scenarios that these models describe. A more expansive description on PQL can be found on http://processquerying.com/pql/.

Example[]

 SELECT * FROM * WHERE AlwaysOccurs(~"process payment");

 SELECT * FROM "\orders" WHERE Executes(<*,"make order",*,~"process payment",*>);

References[]

^ Polyvyanyy, Artem; Corno, Luigi; Conforti, Raffaele; Raboczi, Simon; La Rosa, Marcello; Fortino, Giancarlo (2015). "Process Querying in Apromore" (PDF). Proceedings of the BPM Demo Session 2015 Co-located with the 13th International Conference on Business Process Management (BPM 2015), Innsbruck, Austria, September 2, 2015. CEUR-WS.org. pp. 105–109.
^ Polyvyanyy, Artem; ter Hofstede, Arthur H. M.; Marcello, La Rosa; Ouyang, Chun; Pika, Anastasiia (2019). "Process Query Language: Design, Implementation, and Evaluation". arXiv:1909.09543.

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[PQL-DEMO-1] Polyvyanyy, Artem; Corno, Luigi; Conforti, Raffaele; Raboczi, Simon; La Rosa, Marcello; Fortino, Giancarlo (2015). "Process Querying in Apromore" (PDF). Proceedings of the BPM Demo Session 2015 Co-located with the 13th International Conference on Business Process Management (BPM 2015), Innsbruck, Austria, September 2, 2015. CEUR-WS.org. pp. 105–109.

[PQL-2] Polyvyanyy, Artem; ter Hofstede, Arthur H. M.; Marcello, La Rosa; Ouyang, Chun; Pika, Anastasiia (2019). "Process Query Language: Design, Implementation, and Evaluation". arXiv:1909.09543.

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[2]