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OceanBase Connector/J

V2.4.14
  • What is OceanBase Connector J?
    • Overview of OceanBase Connector/J
    • Compatibility requirements
    • Limitations
  • Install Driver
    • Install and load OceanBase Connector/J
  • Instructions
    • Quick start
      • Import packages
      • Establish a database connection
      • Create a Statement object
      • Run queries and retrieve ResultSet objects
      • Process ResultSet objects
      • Close ResultSet and Statement objects
      • Manage tables and data
      • Commit changes
      • Close a database connection
      • Examples
    • Data sources and URL
      • Data source overview
      • Database URL
    • Java data streams
      • Overview of Java data streams
      • LONG and LONG RAW data types
      • Use LOBs
        • Overview of LOB data types
        • LOB data interface
        • LOB locator interface
      • CHAR, VARCHAR, and RAW data types
    • Statement caching
      • Overview of statement caching
      • Use statement caching
      • Reuse statement objects
    • Call a stored procedure
    • Handle SQL exceptions
    • Result set
      • Overview of result sets
      • Limitations
      • FetchSize
      • refreshRow
      • useCursorFetch
    • Batch processing
    • Failover and Load-Balancing
      • Failover and load balancing modes
      • LoadBalance strategies
      • Load balancing strategy configuration methods
    • Rich client
    • Logging
    • Network overheads
    • Show Trace
    • Security features
    • Troubleshooting
  • Reference
    • Features specific to the Oracle mode
      • Binary Protocol (Prepared Statements)
        • COM_STMT_PREPARE_EXECUTE
        • COM_STMT_SEND_PIECE_DATA
      • Call PL stored procedures
      • Scrollability of a result set
      • Use ARRAY and STRUCT classes
      • Distributed transactions
        • Overview
        • XA components
        • Distributed transaction examples
      • Obtain remarks
      • Data types supported in Oracle mode
      • Error messages in Oracle mode
    • Supported SQL and PL data types
    • Common APIs
      • Overview
      • java.sql.Connection
      • java.sql.CallableStatement
      • java.sql.DatabaseMetaData
      • java.sql.Driver
      • java.sql.PreparedStatement
      • java.sql.ParameterMetaData
      • java.sql.ResultSet
      • java.sql.ResultSetMetaData
      • java.sql.Statement
      • javax.sql.ConnectionPoolDataSource
      • javax.naming.Context
      • javax.sql.PooledConnection
      • com.oceanbase.jdbc.ObPrepareStatement
  • Release Notes
    • V2.4
      • OceanBase Connector/J V2.4.14
      • OceanBase Connector/J V2.4.13
      • OceanBase Connector/J V2.4.12
      • OceanBase Connector/J V2.4.11
      • OceanBase Connector/J V2.4.8
      • OceanBase Connector/J V2.4.5
      • OceanBase Connector/J V2.4.4
      • OceanBase Connector/J V2.4.3
      • OceanBase Connector/J V2.4.2
      • OceanBase Connector/J V2.4.1
      • OceanBase Connector/J V2.4.0
    • V2.2
      • OceanBase Connector/J V2.2.11
      • OceanBase Connector/J V2.2.10
      • OceanBase Connector/J V2.2.7
      • OceanBase Connector/J V2.2.6
      • OceanBase Connector/J V2.2.3
      • OceanBase Connector/J V2.2.0

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  3. V2.4.14

OceanBase Connector/J V2.2.10

Last Updated:2026-09-04 08:24:26

Version information
Overview
Feature enhancements
Bug fixes

Version information

  • Release date: June 30, 2022

  • Version: V2.2.10

Overview

OceanBase Connector/J V2.2.10 supports the LoadBalance feature and is more compatible with MySQL and Oracle. This version applies to general businesses.

Feature enhancements

  • This version supports the LoadBalance feature. You can specify the random, weighted, or rotation strategy in the URL or configuration file for connection load balancing. In addition, you can create load balancing groups and blocklist strategies to improve availability and security.

  • The sendConnectionAttributes() method is provided to control whether to send additional attributes when a connection is established, to support more needs for users with different privileges.

Bug fixes

  • Fixed the issue where the getWarnings() method returns null when an error occurs in MySQL mode.

  • Fixed the issue where the ColumnType values of BLOB and TEXT data types in MySQL mode are inconsistent with those in MySQL databases.

  • Fixed the issue where, when a connection is closed in MySQL mode, the checkClose() behaviors of the Statement interface are inconsistent with those in MySQL databases.

  • Fixed the issue where, when the REF CURSOR data type is used in Oracle mode, the ResultSet.close() method fails to close the cursor. As a result, cursors in OceanBase Database are not released in a timely manner in some cases.

  • Fixed the issue where lock issues may be triggered by the setTransactionIsolation() method.

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