Bulk Insert with CodeIgniter: Optimizing Large Data Insertion into MySQL
Inserting large datasets into MySQL tables using individual insert commands can be time-consuming and resource-intensive. To enhance efficiency, consider utilizing a single query to insert multiple rows simultaneously. This optimization is particularly advantageous when dealing with datasets containing thousands of records.
In the context of the CodeIgniter framework, you can leverage the implode() function and array assignment to construct a single INSERT statement. This approach minimizes unnecessary copying operations, resulting in improved speed and memory utilization.
Here's an example of how to achieve this using CodeIgniter:
$sql = array(); foreach($data as $row) { $sql[] = '("'.mysql_real_escape_string($row['text']).'", '.$row['category_id'].')'; } mysql_query('INSERT INTO table (text, category) VALUES '.implode(',', $sql));
This approach involves creating an array containing the individual value clauses and then using implode() to concatenate them into the final INSERT statement. By avoiding repeated concatenation, you significantly improve the performance of the bulk insert operation.
If your dataset contains numerous columns, consider using an inner loop within the implode() function to assign the values clause to the outer array. This approach further optimizes the construction of the INSERT statement when working with large and complex datasets.
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