How Can I Optimize JDBC Batch Inserts for MySQL Performance?

JDBC Batch Insert Optimization for MySQL Performance

When inserting large volumes of data into MySQL databases, it's crucial to consider performance optimization. This article examines a common scenario involving the insertion of millions of records using batch inserts.

The code snippet provided encounters performance issues. To address this, we can analyze the code and explore optimizations.

Firstly, disabling auto-commit before executing batch operations is generally beneficial for performance. However, in this specific case, consider enabling auto-commit if it has been disabled. It's also recommended to use a PreparedStatement instead of a Statement for better performance.

Another optimization technique is to configure the connection URL with the following properties:

• useServerPrepStmts=false: This disables the use of server-side prepared statements, which can improve performance in batch insert scenarios.
• rewriteBatchedStatements=true: This enables MySQL's optimization to handle batch statements more efficiently.

The modified code with these property configuration is provided below:

Connection c = DriverManager.getConnection("jdbc:mysql://host:3306/db?useServerPrepStmts=false&rewriteBatchedStatements=true", "username", "password");

Implementing these optimizations can significantly improve the performance of JDBC batch inserts into MySQL databases.

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