Conventions used

There are several text conventions used throughout this book.

Code in text: Indicates code words in the text, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “we are using the apoc procedure to add EncounterClass to an encounter node. Since we are trying to add labels dynamically, we have to use the apoc option.”

A block of code is set as follows:

CREATE (p {name: 'Tom'})
RETURN p

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold: “The Cypher query looks like this:

MATCH (d:Drug)<-[:HAS_DRUG]-()<-[:HAS_ENCOUNTER]-(p) 
WITH DISTINCT d, p
WITH d.description as drug, count(p) as patients
WHERE patients > 100
RETURN drug, patients

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “In particular, the addition of a new Encounter node and the HAS_END relationship are a bit different from how we approach data in the RDBMS world.”

Tips or important notes

Appear like this.