Failover and load balancing modes
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OceanBase Connector/J
V2.4.3
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Overview of OceanBase Connector/J Compatibility requirements Install and load the OceanBase Connector/J driver Connect Python applications to OceanBase Database 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 source overviewDatabase URL Overview of Java data streams LONG and LONG RAW data types CHAR, VARCHAR, and RAW data types Overview of statement caching Use statement caching Reuse statement objects 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 Security features Rich client Network overheads Show Trace Troubleshooting 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 Supported SQL and PL data types 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 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 V2.2.10 OceanBase Connector/J V2.2.7 OceanBase Connector/J V2.2.6 OceanBase Connector/J V2.2.3 OceanBase Connector/J V2.2.0