Table of Contents
What kind of query is a gremlin query?
A Gremlin query is a chain of operations/functions that are evaluated from left to right. A simple grandfather query is provided below over the Graph of the Gods dataset discussed in Chapter 3, Getting Started. gremlin> g.
Can you use Gremlin as a graph language?
Learning this language can ensure you to be able to work on multiple graph databases. Gremlin works smoothly on all graph databases that support Blueprints property graph data model. Gremlin can be easily used with JVM languages like Groovy, Clojure, Scala and more.
How to write Gremlin queries in Apache TinkerPop?
WRITING GREMLIN QUERIES 3.1. Introducing Gremlin 3.1.1. A quick look at Gremlin and SQL 3.2. Some fairly basic Gremlin queries 3.2.1. Retrieving property values from a vertex 3.2.2. Does a specific property exist on a given vertex or edge? 3.2.3. Counting things 3.2.4. Counting groups of things 3.3. Starting to walk the graph 3.3.1.
How to load air routes graph in Gremlin?
Loading the air-routes graph using the Gremlin console 2.7. Turning off some of the Gremlin console’s output 2.8. A word about indexes and schemas 3. WRITING GREMLIN QUERIES 3.1. Introducing Gremlin 3.1.1. A quick look at Gremlin and SQL 3.2. Some fairly basic Gremlin queries 3.2.1. Retrieving property values from a vertex 3.2.2.
Which is an example of a gremlin query language?
Gremlin is a path-oriented language which succinctly expresses complex graph traversals and mutation operations. Gremlin is a functional language whereby traversal operators are chained together to form path-like expressions. For example, “from Hercules, traverse to his father and then his father’s father and return the grandfather’s name.”.
WRITING GREMLIN QUERIES 3.1. Introducing Gremlin 3.1.1. A quick look at Gremlin and SQL 3.2. Some fairly basic Gremlin queries 3.2.1. Retrieving property values from a vertex 3.2.2. Does a specific property exist on a given vertex or edge? 3.2.3. Counting things 3.2.4. Counting groups of things 3.3. Starting to walk the graph 3.3.1.
How are edges added to a graph with Gremlin?
Given that The Graph of the Gods only has one battler (Hercules), another battler (for the sake of example) is added to the graph with Gremlin showcasing how vertices and edges are added to the graph. When adding a vertex, an optional vertex label can be provided. An edge label must be specified when adding edges.
Loading the air-routes graph using the Gremlin console 2.7. Turning off some of the Gremlin console’s output 2.8. A word about indexes and schemas 3. WRITING GREMLIN QUERIES 3.1. Introducing Gremlin 3.1.1. A quick look at Gremlin and SQL 3.2. Some fairly basic Gremlin queries 3.2.1. Retrieving property values from a vertex 3.2.2.