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JavaBeginner#spring
JavaAdvanced#jdbc
What is batch processing in JDBC?
Batch processing groups multiple SQL statements together and sends them to the database in a single network round trip using addBatch() and executeBatch(), significantly improving performance for bulk inserts/updates.
Example
PreparedStatement ps = conn.prepareStatement("INSERT INTO logs(msg) VALUES(?)");
for (String msg : messages) { ps.setString(1, msg); ps.addBatch(); }
ps.executeBatch();