Cypher is ASCII art that executes. You draw what you are looking for: a node is in parentheses (c:Cours), a relationship in brackets with an arrow -[:ENSEIGNE]->, and the engine finds in the graph all the places where this drawing fits. Where SQL describes tables to join, Cypher describes a pattern to recognize. The rest (WHERE, RETURN, ORDER BY, LIMIT) you already know, it does the same thing as in SQL. This lesson stays on patterns with zero or one relationship; the next one chains the hops.
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