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OceanBase Developer Center

V4.5.0
  • Topics Overview
  • Overview
    • What is ODC?
    • Features
    • Architecture
    • Limitations
    • ODC console
  • Quick Start
    • Client ODC
      • Overview
      • Install Client ODC
      • Use Client ODC
    • Web ODC
      • Overview
      • Deploy Web ODC
      • Use Web ODC
  • Data Source Management
    • Create a data source
    • Data sources and project collaboration
    • Database O&M
      • Session management
      • Global variable management
      • Recycle bin management
  • SQL Development
    • Edit and execute SQL statements
    • Perform PL compilation and debugging
    • Use the command-line window
    • Edit and export the result set
    • Execution Analysis
    • Generate test data
    • System settings
    • Intelligent SQL development
    • Common features
    • Database objects
      • Table objects
        • Overview
        • Create a table
      • View objects
        • Overview
        • Create a view
        • Manage views
      • Materialized view objects
        • Overview
        • Create a materialized view
        • Manage materialized views
      • Function objects
        • Overview
        • Create a function
        • Manage functions
      • Stored procedure objects
        • Overview
        • Create a stored procedure
        • Manage stored procedures
      • Sequence objects
        • Overview
        • Create a sequence
        • Manage sequences
      • Package objects
        • Overview
        • Create a program package
        • Manage program packages
      • Trigger objects
        • Overview
        • Create a trigger
        • Manage triggers
      • Type objects
        • Overview
        • Create a type
        • Manage types
      • Synonym objects
        • Overview
        • Create a synonym
        • Manage synonyms
      • External resource objects
        • External resources
        • Create an external resource
        • Manage external resources
  • Database Change Risk Management
    • Project collaborative management
      • Project management
      • Manage databases
      • Manage logical databases
      • Add object storage files
      • Manage project members
      • Desensitize data
      • Notification management
        • Overview
        • View notification records
        • Manage notification channels
          • Create a notification channel
          • View, edit, and delete a notification channel
          • Configure a custom channel
        • Manage notification rules
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    • Security standards
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        • SQL window specification
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        • Overview
        • Manage risk identification rules
        • Manage approval processes
      • Desensitization algorithms
      • Operation audit
  • Ticket Management
    • Import schemas and data
    • Export schemas and data
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    • Manage changes to logical databases
    • Batch database change management
    • Online schema changes
    • Synchronize shadow tables
    • Schema comparison
  • Data Lifecycle Management
    • Data archiving
    • Data cleanup
    • Manage partitioning plans
      • Manage partitioning plans
      • Set partitioning strategies
      • Examples of partitioning strategies
    • SQL Plan
  • System Integration
    • Login integration
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    • SQL approval integration
    • Bastion host integration
    • Integrate with LLMs
  • Deployment Guide
    • Deployment overview
    • Preparations before deployment
    • Deploy ODC in single-node mode
    • Deploy ODC in high-availability mode
    • Deployment verification
  • Upgrade Guide
    • Upgrade Overview
    • Preparations for upgrade
    • Update single-node ODC
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    • Upgrade verification
    • Rollback after upgrade failed
  • Best Practices
    • Tips for SQL development
    • Explore ODC team workspaces
    • Understanding real-time SQL diagnostics for OceanBase AP
    • OceanBase historical database solutions
    • ODC SQL check for automatic identification of high-risk operations
    • Integration with ODC enterprise-level account system
    • Manage and modify sharded databases and tables via ODC
    • Data masking and control practices
    • Enterprise-level control and collaboration: Safeguard every database change
  • Troubleshooting
    • ODC troubleshooting process
    • Collect message
      • View the runtime environment and version information
      • View web ODC logs
      • View client ODC logs
      • View end-to-end ODC-related logs
      • View ODC MetaDB data
      • Query the index status in OceanBase Database V4.x
      • Query the index status in OceanBase Database V1.4.x to V3.2.x
      • Collect JVM runtime information
      • Use tcpdump to capture packets
    • FAQ
      • Installation of client ODC
      • Web ODC deployment and startup
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  • Release Notes
    • V4.5
      • ODC V4.5.0
    • V4.4
      • ODC V4.4.0
      • ODC V4.4.1
      • ODC V4.4.2
      • ODC V4.4.3
    • V4.3
      • ODC V4.3.4
      • ODC V4.3.3
      • ODC V4.3.2
      • ODC V4.3.1
      • ODC V4.3.0
    • V4.2
      • ODC V4.2.4
      • ODC V4.2.3
      • ODC V4.2.2
      • ODC V4.2.1
      • ODC V4.2.0
    • V4.1
      • ODC V4.1.3
      • ODC V4.1.2
      • ODC V4.1.1
      • ODC V4.1.0
    • V4.0
      • ODC V4.0.2
      • ODC V4.0.0
    • V3.4
      • ODC V3.4.0
    • V3.3
      • ODC V3.3.3
      • ODC V3.3.2
      • ODC V3.3.1
      • ODC V3.3.0
    • V3.2
      • ODC V3.2.3
      • ODC V3.2.2
      • ODC V3.2.1
      • ODC V3.2.0

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  3. V4.5.0

View ODC MetaDB data

Last Updated:2026-09-03 09:11:30

This topic describes how to view the MetaDB data of OceanBase Developer Center (ODC).

Notice

MetaDB data may corrupt when being operated directly. Therefore, handle MetaDB data with caution.

The metadata of client ODC is maintained in the embedded h2database.

  1. Go to the metadata path of client ODC.

    • Windows system: %USERPROFILE%\AppData\Roaming\odc\

      cd %USERPROFILE%\AppData\Roaming\odc\
      
    • macOS: /Users/{user}/Library/Application Support/odc

      cd ~/"Library/Application Support/odc"
      
  2. View data files.

    ls odc*.db
    
    # You can view the following two files, namely, the data files of the h2database database:
    #odc2.0.mv.db    odc2.0.trace.db
    

You can use a tool such as a MySQL client or OBClient to connect to ODC MetaDB.

  1. In the ODC Docker container, run the env | grep DATABASE_ command to view the connection information about the web ODC MetaDB.

    Here is the sample result:

    # View the environment variables in the ODC Docker container.
    $env | grep DATABASE_
    DATABASE_NAME=***
    DATABASE_PORT=***
    DATABASE_HOST=***
    DATABASE_PASSWORD=***
    DATABASE_USERNAME=***
    
  2. In the ODC Docker container, run the following command to connect to ODC MetaDB.

    # Connect to ODC MetaDB by using OBClient
    /opt/odc/obclient/bin/obclient -h${DATABASE_HOST} -P${DATABASE_PORT} -u${DATABASE_USERNAME} -p${DATABASE_PASSWORD} -D${DATABASE_NAME}
    

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