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OceanBase Connector/J

V2.4.2
  • What is OceanBase Connector J?
    • Compatibility requirements
    • Overview of OceanBase Connector/J
  • Install Driver
    • Install and load the OceanBase Connector/J driver
  • Instructions
    • Quick start
      • Import packages
      • Create 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
      • Example
    • Data sources and URL
      • Data source overview
      • Data source characteristics and properties
      • Create and connect to a data source instance
      • 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 API
      • CHAR, VARCHAR, and RAW data types
    • Statement caching
      • Overview of statement caching
      • Use statement caching
      • Reuse statement objects
    • Use CallableStatements to call stored procedures
    • Handle SQL exceptions
    • Result set
      • Overview of result sets
      • Limits
      • FetchSize
      • refreshRow
      • useCursorFetch
    • Batch processing
    • Failover and Load-Balancing
      • Failover and load balancing modes
      • LoadBalance strategies
      • LoadBalance strategies configuration methods
    • Security features
    • SQL NetworkCostInfo
    • 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
      • Result set performance
      • Use ARRAY and STRUCT classes
      • Distributed transactions
        • Overview of distributed transactions
        • XA components
        • Distributed transaction examples
      • Error messages in Oracle mode
      • Get remarks
      • Data types supported in Oracle mode
    • Supported SQL and PL data types
    • Common APIs
      • Overview of common APIs
      • 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
  • Release Notes
    • V2.4
      • 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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  2. OceanBase Connector/J
  3. V2.4.2

OceanBase Connector/J V2.4.1

Last Updated:2026-09-04 08:24:25

Version information
Overview
Feature enhancements
Bug fixes

Version information

  • Release date: December 15, 2022

  • Version: V2.4.1

Overview

OceanBase Connector/J V2.4.1 incorporates the rich client functionality from version 2.3.0 and fixes numerous MySQL compatibility issues. It is suitable for routine business use.

Feature enhancements

  • Integrated rich client capabilities by incorporating ODP's routing logic into the driver. Business requests are routed directly within the driver to the target OBServer node. This eliminates the need for load balancing devices, shortening the access path.
  • Added new options: obProxySocket, clobberStreamingResults, maxRows, zeroDateTimeBehavior, allowNanAndInf, defaultConnectionAttributesBanList, and enableOb20Checksum.
  • Added a JVM parameter to output the HTTP/2.0 protocol header in the console.
  • Added a checksum verification switch for the OB2.0 protocol.

Bug fixes

  • Fixed several MySQL compatibility issues.
  • Fixed an exception thrown by the setDate method when binary mode was enabled.
  • Fixed an error where setting a value of another type to a String field in an Array+Struct object caused a forced String conversion and error.
  • Fixed a null pointer exception in getSchema after connecting to an Oracle-compatible mode database without specifying the schema in the URL.
  • Fixed an error when using getObject() to retrieve data.

Note

When using this version, if you call the close method on some DatabaseMetaData interfaces (such as getProcedures, getTables, getSchemas, getColumns, getFunctions, TABLEPrivileges, getPrimaryKeys, getBestRowldentifier, ColumnPrivileges, and keysQuery), it may cause an infinite recursion because the returned result sets are not closed.

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