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OceanBase Connector/J V2.2.0

Last Updated：2023-12-14 07:26:05 Updated

Release date: April 12, 2021
Version: V2.2.0

Overview

OceanBase Connector/J V2.2.0 improves compatibility with MySQL. This version applies to general businesses.

Enhanced features

Client IP addresses are supported.
In MySQL mode, methods such as getExportedKeys, getImportedKeys, getCrossReference, and getFunctionColumns are supported in DatabaseMetaData.
In Oracle mode, the ZonedDateTime type is supported for setObject.

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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OceanBase Connector/J

V2.4.5

What is OceanBase Connector J?
- Overview of OceanBase Connector/J
- Compatibility requirements
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
  - 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 comments
  - 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 V2.4.5
  - 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