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A unified distributed database ready for your transactional, analytical, and AI workloads.

DEPLOY YOUR WAY

OceanBase Cloud

The best way to deploy and scale OceanBase

OceanBase Enterprise

Run and manage OceanBase on your infra

TRY OPEN SOURCE

OceanBase Community Edition

The free, open-source distributed database

OceanBase seekdb

Open source AI native search database

Customer Stories

Real-world success stories from enterprises across diverse industries.

View All
BY USE CASES

Mission-Critical Transactions

Global & Multicloud Application

Elastic Scaling for Peak Traffic

Real-time Analytics

Active Geo-redundancy

Database Consolidation

Comprehensive knowledge hub for OceanBase.

Blog

Live Demos

Training & Certification

Documentation

Official technical guides, tutorials, API references, and manuals for all OceanBase products.

View All
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OceanBase Connector/J

V2.4.5

  • 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
      • Examples
    • Data sources and URL
      • Database URL
      • Data source overview
    • Java data streams
      • Overview of Java data streams
      • LONG and LONG RAW data types
      • CHAR, VARCHAR, and RAW data types
      • Use LOBs
        • Overview of LOB data types
        • LOB data interface
        • LOB locator interface
    • Statement caching
      • Overview of statement caching
      • Reuse statement objects
      • Use statement caching
    • 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
    • Supported SQL and PL data types
    • Features specific to the Oracle mode
      • Binary Protocol (Prepared Statements)
        • COM_STMT_SEND_PIECE_DATA
        • COM_STMT_PREPARE_EXECUTE
      • Call PL stored procedures
      • Scrollability of a result set
      • Use ARRAY and STRUCT classes
      • Distributed transactions
        • Distributed transaction examples
        • Overview
        • XA components
      • Obtain comments
      • Data types supported in Oracle mode
      • Error messages in Oracle mode
    • Common APIs
      • Overview
      • java.sql.DatabaseMetaData
      • java.sql.ParameterMetaData
      • java.sql.ResultSet
      • java.sql.Statement
      • javax.sql.ConnectionPoolDataSource
      • javax.naming.Context
      • javax.sql.PooledConnection
      • java.sql.ResultSetMetaData
      • java.sql.Driver
      • java.sql.CallableStatement
      • com.oceanbase.jdbc.ObPrepareStatement
      • java.sql.Connection
      • java.sql.PreparedStatement
  • Release Notes
    • V2.4
      • 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 V2.2.7
      • OceanBase Connector/J V2.2.0
      • OceanBase Connector/J V2.2.6
      • OceanBase Connector/J V2.2.3
      • OceanBase Connector/J V2.2.10

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Compatibility requirements Overview of OceanBase Connector/J Install and load the OceanBase Connector/J driver 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 ExamplesDatabase URL Data source overview Overview of Java data streams LONG and LONG RAW data types CHAR, VARCHAR, and RAW data types Overview of statement caching Reuse statement objects Use statement caching Call a stored procedure Handle SQL exceptions Overview of result sets Limitations FetchSize refreshRow useCursorFetch Batch processing Failover and load balancing modes LoadBalance strategies Load balancing strategy configuration methods Rich client Logging Network overheads Show Trace Security features Troubleshooting Supported SQL and PL data types Call PL stored procedures Scrollability of a result set Use ARRAY and STRUCT classes Obtain comments Data types supported in Oracle mode Error messages in Oracle mode Overview java.sql.DatabaseMetaData java.sql.ParameterMetaData java.sql.ResultSet java.sql.Statement javax.sql.ConnectionPoolDataSource javax.naming.Context javax.sql.PooledConnection java.sql.ResultSetMetaData java.sql.Driver java.sql.CallableStatement com.oceanbase.jdbc.ObPrepareStatement java.sql.Connection java.sql.PreparedStatement 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 OceanBase Connector/J V2.2.11 OceanBase Connector/J V2.2.7 OceanBase Connector/J V2.2.0 OceanBase Connector/J V2.2.6 OceanBase Connector/J V2.2.3 OceanBase Connector/J V2.2.10
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  2. OceanBase Connector/J
  3. V2.4.5
iconOceanBase Connector/J
V 2.4.5
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OceanBase Connector/J V2.2.3

Last Updated:2026-04-09 07:21:37  Updated
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Version information

  • Release date: July 21, 2021.
  • Version: V2.2.3

Overview

OceanBase Connector/J V2.2.3 supports features such as direct connection with ODP, JDBC Socks Proxy, and recording of time consumed on the transmission network, to provide more URL options. This version applies to general businesses.

Enhanced features

  • OceanBase Connector/J V2.2.3 supports direct connection with ODP to query or modify ODP configurations.
  • OceanBase Connector/J V2.2.3 supports the JDBC Socks Proxy feature.
  • The URL options such as useUnicode, prepStmtCacheSqlLimit, useLocalTransactionState, and useLocalSessionState are added.
  • The networkStatistics feature is added to record the time consumed on the transmission network.

Bug fixes

  • Fixed an issue that the URL database information is absent in Oracle mode, which causes NullPointerException (NPE) for prepareCall of stored procedures.
  • Fixed an issue that float columns cannot be converted into the BigDecimal class in Oracle mode.
  • Fixed an issue that the type values in Oracle mode of OceanBase Database are inconsistent with those in Oracle databases.
  • Fixed an issue that getWarnings returns NULL values in Oracle mode.
  • Fixed an issue that in the GB2312 encoding format, JDBC returns a checksum error.

Notice

In the current version, if characterEncoding is set to true and the tenant uses the GBK character set, garbled display occurs when data is queried and inserted.

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