我现在正在使用批处理：

String query = "INSERT INTO table (id, name, value) VALUES (?, ?, ?)";
PreparedStatement ps = connection.prepareStatement(query);            
for (Record record : records) {
    ps.setInt(1, record.id);
    ps.setString(2, record.name);
    ps.setInt(3, record.value);
    ps.addBatch();
}
ps.executeBatch();

我只是想知道上面的代码是否等效于下面的代码。如果没有，哪个更快？

String query = "INSERT INTO table (id, name, value) VALUES ";
for (Record record : records) {
    query += "(" + record.id + ",'" + record.name + "'," + record.value + "),";
}
query = query.substring(1, query.length() - 1);
PreparedStatement ps = connection.prepareStatement(query);
ps.executeUpdate();