Nebula Graph Database Manual
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Nebula Graph Database Manual
vesoft-inc/nebula-docs
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About
Introduction
Introduction
What is Nebula Graph
Data model
Path
VID
Nebula Graph architecture
Nebula Graph architecture
Architecture overview
Meta Service
Graph Service
Storage Service
Quick start
Quick start
Quick start workflow
Step 1 Install Nebula Graph
Step 2 Manage Nebula Graph Service
Step 3 Connect to Nebula Graph
Step 4 Use nGQL (CRUD)
nGQL cheatsheet
nGQL guide
nGQL guide
nGQL overview
nGQL overview
Overview
Graph patterns
Comments
Identifier case sensitivity
Keywords
nGQL style guide
Data types
Data types
Numeric
Boolean
String
Date and time
NULL
List
Set
Map
Type conversion
Geography
Variables and composite queries
Variables and composite queries
Composite queries
User-defined variables
Property reference
Operators
Operators
Comparison
Boolean
Pipe
Property reference
Set
String
List
Precedence
Functions and expressions
Functions and expressions
Math functions
String functions
Date and time functions
Schema functions
Case expressions
List functions
count()
collect()
reduce()
hash()
concat()
Predicate functions
Geography functions
User-defined functions
General queries statements
General queries statements
MATCH
LOOKUP
GO
FETCH
UNWIND
SHOW
SHOW
SHOW CHARSET
SHOW COLLATION
SHOW CREATE SPACE
SHOW CREATE TAGS/EDGES
SHOW HOSTS
SHOW INDEX STATUS
SHOW INDEXES
SHOW PARTS
SHOW ROLES
SHOW SNAPSHOTS
SHOW SPACES
SHOW STATS
SHOW TAGS/EDGES
SHOW USERS
SHOW SESSIONS
SHOW QUERIES
SHOW META LEADER
Clauses and options
Clauses and options
GROUP BY
LIMIT and SKIP
SAMPLE
ORDER BY
RETURN
TTL
WHERE
YIELD
WITH
Space statements
Space statements
CREATE SPACE
USE SPACE
SHOW SPACES
DESCRIBE SPACE
DROP SPACE
Tag statements
Tag statements
CREATE TAG
DROP TAGS
ALTER TAG
SHOW TAGS
DESCRIBE TAG
DELETE TAG
Add or delete tag
Edge type statements
Edge type statements
CREATE EDGE
DROP EDGE
ALTER EDGE
SHOW EDGES
DESCRIBE EDGE
Vertex statements
Vertex statements
INSERT VERTEX
DELETE VERTEX
UPDATE VERTEX
UPSERT VERTEX
Edge statements
Edge statements
INSERT EDGE
DELETE EDGE
UPDATE EDGE
UPSERT EDGE
Native index statements
Native index statements
Index overview
CREATE INDEX
SHOW INDEX
SHOW CREATE INDEX
DESCRIBE INDEX
REBUILD INDEX
SHOW INDEX STATUS
DROP INDEX
Full-text index statements
Full-text index statements
Full-text restrictions
Deploy Elasticsearch cluster
Deploy Raft Listener cluster
Search with full-text index
Subgraph and path
Subgraph and path
GET SUBGRAPH
FIND PATH
Query tuning statements
Query tuning statements
EXPLAIN and PROFILE
Operation and maintenance statements
Operation and maintenance statements
BALANCE syntax
Job statements
Kill queries
Deployment and installation
Deployment and installation
Resource preparations
Compile and install Nebula Graph
Compile and install Nebula Graph
Install Nebula Graph by compiling the source code
Install Nebula Graph with RPM or DEB package
Install Nebula Graph with the tar.gz file
Deploy Nebula Graph with Docker Compose
Deploy a Nebula Graph cluster on multiple servers
Manage Service
Connect to Service
Upgrade
Upgrade
Upgrade Nebula Graph to v2.6.0
Upgrade Nebula Graph from v2.0.x to v2.6.0
Uninstall Nebula Graph
Configurations and logs
Configurations and logs
Configurations
Configurations
Configurations
Meta Service configurations
Graph Service configurations
Storage Service configurations
Kernel configurations
Log management
Log management
Logs
Monitor and metrics
Monitor and metrics
Query Nebula Graph metrics
RocksDB Statistics
Data security
Data security
Authentication and authorization
Authentication and authorization
Authentication
User management
Roles and privileges
OpenLDAP authentication
Manage snapshots
Group&Zone
SSL
Practices
Practices
Compaction
Storage load balance
Modeling suggestions
System design suggestions
Execution plan
Processing super vertices
Best practices
Client
Client
Clients overview
Nebula CPP
Nebula Java
Nebula Python
Nebula Go
Nebula Graph Studio
Nebula Graph Studio
Change Log
About Nebula Graph Studio
About Nebula Graph Studio
What is Nebula Graph Studio
Explanations of terms
Limitations
Check updates
Shortcuts
Deploy and connect
Deploy and connect
Deploy Studio
Deploy Studio with Helm
Connect to Nebula Graph
Clear connection
Quick start
Quick start
Design a schema
Create a schema
Import data
Query graph data
Operation guide
Operation guide
Use Schema
Use Schema
Operate graph spaces
Operate Tags
Operate Edge types
Operate Indexes
Use Console
Use Console
Console
Open in Explore
View subgraphs
Troubleshooting
Troubleshooting
Connecting to the database error
Cannot access to Studio
FAQ
Nebula Importer
Nebula Importer
Use Nebula Importer
Configuration with Header
Configuration without Header
Nebula Exchange
Nebula Exchange
Introduction
Introduction
What is Nebula Exchange
Limitations
Compile Exchange
Exchange configurations
Exchange configurations
Options for import
Parameters in the configuration file
Use Nebula Exchange
Use Nebula Exchange
Import data from CSV files
Import data from JSON files
Import data from ORC files
Import data from Parquet files
Import data from HBase
Import data from MySQL
Import data from ClickHouse
Import data from Neo4j
Import data from Hive
Import data from MaxCompute
Import data from Pulsar
Import data from Kafka
Import data from SST files
Exchange FAQ
Nebula Operator
Nebula Operator
What is Nebula Operator
Overview of using Nebula Operator
Deploy Nebula Operator
Deploy clusters
Deploy clusters
Deploy clusters with Kubectl
Deploy clusters with Helm
Configure clusters
Configure clusters
Custom configuration parameters for a Nebula Graph cluster
Reclaim PVs
Balance storage data after scaling out
Upgrade Nebula Graph clusters
Connect to Nebula Graph databases
Self-healing
FAQ
Nebula Algorithm
Nebula Spark Connector
Nebula Flink Connector
Nebula Bench
Appendix
Appendix
Release Note
FAQ
Ecosystem tools
Write tools
How to contribute
中文手册
About
Danger
A
new version
has been released.
Last update:
November 11, 2021
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