A Tour of Prolog
Let's take a look at Prolog's greatest attractions and most unique features! In addition to being an excellent database and query language, Prolog is uniquely suited for processing rules, reasoning about strings, and solving combinatorial problems. Rewriting code at compilation time, a feature called macros in other languages, is easily possible in Prolog. Prolog's implicit mechanisms allow except
Logica: organizing your data queries, making them universally reusable and fun
The latest news from Google on open source releases, major projects, events, and student outreach programs. Logica: organizing your data queries, making them universally reusable and fun We present Logica, a novel open source Logic Programming language. A successor to Yedalog (a language developed at Google earlier) it is a Datalog-like logic programming language. Logica code compiles to SQL and r
Datalog: Deductive Database Programming
a declarative logic language in which each formula is a function-free Horn clause, and every variable in the head of a clause must appear in the body of the clause. a lightweight deductive database system where queries and database updates are expressed in the logic language. The use of Datalog syntax and an implementation based on tabling intermediate results ensures that all queries terminate.
Logica
Logica is an open source declarative logic programming language for data manipulation. Logica extends syntax of logic programming for intuitive and efficient data manipulation. It compiles to SQL thus providing you access to the power of SQL engines with the convenience of logic programming syntax. Examples One may say that for programming languages like Python and Java functions are the basic bui
Logica
Logica is an open source declarative logic programming language for data manipulation. Logica extends syntax of logic programming for intuitive and efficient data manipulation. It compiles to SQL thus providing you access to the power of SQL engines with the convenience of logic programming syntax. Examples One may say that for programming languages like Python and Java functions are the basic bui
Foundations of Databases
You may take one copy of the book draft for personal use but not for distribution. Please do not post the draft on other web sites, instead, please put a link to this site. Alice's book Individual Chapters Table of Contents Chapter 1 - Database Systems Chapter 2 - Theoretical Background Chapter 3 - The Relational Model Chapter 4 - Conjunctive Queries Chapter 5 - Adding Negation: Algebra and Calcul
KDatalog: Kafka as a Datalog Engine – Robert Yokota
In previous posts, I had discussed how Kafka can be used for both stream-relational processing as well as graph processing. I will now show how Kafka can also be used to process Datalog programs. The Datalog Language Datalog 1 is a declarative logic programming language that is used as the query language for databases such as Datomic and LogicBlox.2 Both relational queries and graph-based queries
Deductive Application Language (DeAL) System
The Deductive Application Language System (DeALS) is a next-generation Datalog system. The objective of the DeALS project is to extend the power of Datalog with advanced constructs with strong theoretical foundations. DeAL supports stratified aggregation, negation and XY-stratification. DeAL also supports new monotonic aggregates that can be used in recursive rules. What's the big DeAL? DeALS exte
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Google proposes Logica data language for building more manageable SQL code
2. Introduction
GitHub - juji-io/datalevin: A simple, fast and versatile Datalog database
GitHub - threatgrid/asami: A graph store for Clojure and ClojureScript
http://conferences.cis.umac.mo/icde2019/wp-content/uploads/2019/06/icde-2019-keynote-georg-gottlob.pdf
Graph Database Stories: Google and Netflix
Uncanny Valleys in Declarative Language Design
Yedalog: Exploring Knowledge at Scale
Generative Datalog with Continuous Distributions
Datalography: Scaling datalog graph analytics on graph processing systems
http://www.vldb.org/pvldb/vol11/p975-bellomarini.pdf
http://yellowstone.cs.ucla.edu/~yang/paper/sigmod2016-p958.pdf