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NebulaGraph Database Manual
  • 中文
vesoft-inc/nebula
vesoft-inc/nebula
  • About
    • What is NebulaGraph
    • Data model
    • Path
    • VID
      • Architecture overview
      • Meta Service
      • Graph Service
      • Storage Service
    • Deploy NebulaGraph using Docker
      • Step 1 Install NebulaGraph
      • Step 2 Manage NebulaGraph Service
      • Step 3 Connect to NebulaGraph
      • Step 4 Register the Storage Service
      • Step 5 Use nGQL (CRUD)
    • nGQL cheatsheet
      • Overview
      • Graph patterns
      • Comments
      • Identifier case sensitivity
      • Keywords
      • nGQL style guide
      • Numeric
      • Boolean
      • String
      • Date and time
      • NULL
      • List
      • Set
      • Map
      • Type conversion
      • Geography
      • Comparison
      • Boolean
      • Pipe
      • Set
      • String
      • List
      • Arithmetic
      • Precedence
      • Math functions
      • Aggregate functions
      • String functions
      • Date and time functions
      • Schema functions
      • List functions
      • Type conversion functions
      • Conditional expressions
      • Predicate functions
      • Geography functions
      • Overview
      • MATCH
      • OPTIONAL MATCH
      • LOOKUP
      • GO
      • FETCH
        • SHOW CHARSET
        • SHOW COLLATION
        • SHOW CREATE SPACE
        • SHOW CREATE TAG/EDGE
        • 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
      • FIND PATH
      • GET SUBGRAPH
      • GROUP BY
      • LIMIT and SKIP
      • SAMPLE
      • ORDER BY
      • RETURN
      • TTL
      • WHERE
      • YIELD
      • WITH
      • UNWIND
      • INNER JOIN
      • Composite queries
      • User-defined variables
      • Property references
      • CREATE SPACE
      • USE SPACE
      • SHOW SPACES
      • DESCRIBE SPACE
      • CLEAR SPACE
      • DROP SPACE
      • CREATE TAG
      • DROP TAGS
      • ALTER TAG
      • SHOW TAGS
      • DESCRIBE TAG
      • DELETE TAG
      • Add or delete tag
      • CREATE EDGE
      • DROP EDGE
      • ALTER EDGE
      • SHOW EDGES
      • DESCRIBE EDGE
      • INSERT VERTEX
      • DELETE VERTEX
      • UPDATE VERTEX
      • UPSERT VERTEX
      • INSERT EDGE
      • DELETE EDGE
      • UPDATE EDGE
      • UPSERT EDGE
      • Index overview
      • CREATE INDEX
      • SHOW INDEX
      • SHOW CREATE INDEX
      • DESCRIBE INDEX
      • REBUILD INDEX
      • SHOW INDEX STATUS
      • DROP INDEX
      • Full-text restrictions
      • Deploy Elasticsearch cluster
      • Deploy Raft Listener cluster
      • Search with full-text index
      • EXPLAIN and PROFILE
      • Kill queries
      • Kill sessions
    • Job statements
    • Resource preparations
      • Compile the source
      • Compile using Docker
      • Install using RPM or DEB package
      • Install using TAR package
      • Install standalone NebulaGraph
    • Local multi-node installation
    • Install using Docker Compose
    • Install using NebulaGraph Lite
    • Install with ecosystem tools
    • Manage Service
    • Connect to Service
    • Manage Storage host
    • Upgrade
    • Uninstall NebulaGraph
      • Configurations
      • Meta Service configurations
      • Graph Service configurations
      • Storage Service configurations
      • Kernel configurations
      • Runtime logs
    • Query NebulaGraph metrics
    • RocksDB Statistics
      • Authentication
      • User management
      • Roles and privileges
    • SSL
      • What is BR Community
      • Install BR
      • Use BR to back up data
      • Use BR to restore data
    • Manage snapshots
    • Load balance
    • Overview
    • Use NebulaGraph Importer
        • What is NebulaGraph Exchange
        • Limitations
      • Get Exchange
        • Options for import
        • Parameters in the configuration file
        • 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/PostgreSQL
        • Import data from Oracle
        • 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 JDBC
        • Import data from SST files
      • Exchange FAQ
    • NebulaGraph Spark Connector
    • NebulaGraph Flink Connector
    • Compaction
    • Storage load balance
    • Modeling suggestions
    • System design suggestions
    • Execution plan
    • Processing super vertices
    • Enable AutoFDO
    • Best practices
    • Clients overview
    • NebulaGraph Console
    • NebulaGraph CPP
    • NebulaGraph Java
    • NebulaGraph Python
    • NebulaGraph Go
    • Community contributed clients
      • What is NebulaGraph Studio
      • Limitations
      • Deploy Studio
      • Connect to NebulaGraph
      • Design a schema
      • Create a schema
      • Import data
      • Use Console
        • Manage graph spaces
        • Manage tags
        • Manage edge types
        • Manage indexes
        • View schema
      • Schema drafting
    • Global settings
      • Database connection error
      • Unable to access Studio
      • FAQ
    • What is NebulaGraph Dashboard
    • Deploy Dashboard
    • Connect to Dashboard
    • Use Dashboard
    • Monitoring metrics
    • What is NebulaGraph Operator
      • Install NebulaGraph Operator
      • Create a NebulaGraph cluster
      • Connect to a NebulaGraph cluster
      • Customize installation defaults
      • Update NebulaGraph Operator
      • Manage specific clusters
      • Upgrade NebulaGraph Operator
      • Uninstall NebulaGraph Operator
        • Install clusters
        • Upgrade clusters
        • Uninstall clusters
      • Customize cluster configurations
        • Dynamically expand persistent volumes
        • Use local PV
        • Configure PV reclaim
      • Log management
        • Enable admission control
        • Configure deletion protection
        • Self-healing overview
        • Optimize leader transfer in rolling updates
        • Restart clusters
    • FAQ
    • NebulaGraph Algorithm
  • Bench
  • FAQ
      • NebulaGraph Community
      • NebulaGraph Studio
      • NebulaGraph Dashboard Community
    • Ecosystem tools
    • Port guide for company products
    • How to contribute
    • History timeline
    • Error code
  • PDF

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