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Revert "Fix build error in 'build/docs/cypher/index.html'"

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This reverts commit b57cca8587 as the
issue has already been fixed upstream.
This commit is contained in:
Divay Prakash 2018-08-29 18:03:27 +05:30
parent 926a2bdc88
commit f95558ff92
1 changed files with 17 additions and 51 deletions
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@ -16,29 +16,19 @@ Nodes
**Represents a record in a graph.** **Represents a record in a graph.**
``` ```()```
()
```
It's an empty *node*, to indicate that there is a *node*, but it's not relevant for the query. It's an empty *node*, to indicate that there is a *node*, but it's not relevant for the query.
``` ```(n)```
(n)
```
It's a *node* referred by the variable **n**, reusable in the query. It begins with lowercase and uses camelCase. It's a *node* referred by the variable **n**, reusable in the query. It begins with lowercase and uses camelCase.
``` ```(p:Person)```
(p:Person)
```
You can add a *label* to your node, here **Person**. It's like a type / a class / a category. It begins with uppercase and uses camelCase. You can add a *label* to your node, here **Person**. It's like a type / a class / a category. It begins with uppercase and uses camelCase.
``` ```(p:Person:Manager)```
(p:Person:Manager)
```
A node can have many *labels*. A node can have many *labels*.
``` ```(p:Person {name : 'Théo Gauchoux', age : 22})```
(p:Person {name : 'Théo Gauchoux', age : 22})
```
A node can have some *properties*, here **name** and **age**. It begins with lowercase and uses camelCase. A node can have some *properties*, here **name** and **age**. It begins with lowercase and uses camelCase.
The types allowed in properties : The types allowed in properties :
@ -50,9 +40,7 @@ The types allowed in properties :
*Warning : there isn't datetime property in Cypher ! You can use String with a specific pattern or a Numeric from a specific date.* *Warning : there isn't datetime property in Cypher ! You can use String with a specific pattern or a Numeric from a specific date.*
``` ```p.name```
p.name
```
You can access to a property with the dot style. You can access to a property with the dot style.
@ -61,24 +49,16 @@ Relationships (or Edges)
**Connects two nodes** **Connects two nodes**
``` ```[:KNOWS]```
[:KNOWS]
```
It's a *relationship* with the *label* **KNOWS**. It's a *label* as the node's label. It begins with uppercase and use UPPER_SNAKE_CASE. It's a *relationship* with the *label* **KNOWS**. It's a *label* as the node's label. It begins with uppercase and use UPPER_SNAKE_CASE.
``` ```[k:KNOWS]```
[k:KNOWS]
```
The same *relationship*, referred by the variable **k**, reusable in the query, but it's not necessary. The same *relationship*, referred by the variable **k**, reusable in the query, but it's not necessary.
``` ```[k:KNOWS {since:2017}]```
[k:KNOWS {since:2017}]
```
The same *relationship*, with *properties* (like *node*), here **since**. The same *relationship*, with *properties* (like *node*), here **since**.
``` ```[k:KNOWS*..4]```
[k:KNOWS*..4]
```
It's a structural information to use in a *path* (seen later). Here, **\*..4** says "Match the pattern, with the relationship **k** which be repeated between 1 and 4 times. It's a structural information to use in a *path* (seen later). Here, **\*..4** says "Match the pattern, with the relationship **k** which be repeated between 1 and 4 times.
@ -87,24 +67,16 @@ Paths
**The way to mix nodes and relationships.** **The way to mix nodes and relationships.**
``` ```(a:Person)-[:KNOWS]-(b:Person)```
(a:Person)-[:KNOWS]-(b:Person)
```
A path describing that **a** and **b** know each other. A path describing that **a** and **b** know each other.
``` ```(a:Person)-[:MANAGES]->(b:Person)```
(a:Person)-[:MANAGES]->(b:Person)
```
A path can be directed. This path describes that **a** is the manager of **b**. A path can be directed. This path describes that **a** is the manager of **b**.
``` ```(a:Person)-[:KNOWS]-(b:Person)-[:KNOWS]-(c:Person)```
(a:Person)-[:KNOWS]-(b:Person)-[:KNOWS]-(c:Person)
```
You can chain multiple relationships. This path describes the friend of a friend. You can chain multiple relationships. This path describes the friend of a friend.
``` ```(a:Person)-[:MANAGES]->(b:Person)-[:MANAGES]->(c:Person)```
(a:Person)-[:MANAGES]->(b:Person)-[:MANAGES]->(c:Person)
```
A chain can also be directed. This path describes that **a** is the boss of **b** and the big boss of **c**. A chain can also be directed. This path describes that **a** is the boss of **b** and the big boss of **c**.
Patterns often used (from Neo4j doc) : Patterns often used (from Neo4j doc) :
@ -258,19 +230,13 @@ DELETE n, r
Other useful clauses Other useful clauses
--- ---
``` ```PROFILE```
PROFILE
```
Before a query, show the execution plan of it. Before a query, show the execution plan of it.
``` ```COUNT(e)```
COUNT(e)
```
Count entities (nodes or relationships) matching **e**. Count entities (nodes or relationships) matching **e**.
``` ```LIMIT x```
LIMIT x
```
Limit the result to the x first results. Limit the result to the x first results.