How to Optimize Bulk Data Loading into MySQL from DataTable with MySqlBulkLoader?

Bulk Copy a DataTable into MySQL with Performance Optimization

Question:

Previously using Microsoft SQL Server, bulk data insertion was seamlessly executed with the SqlBulkCopy class. How can a similar functionality be achieved in MySQL, considering performance concerns?

Answer:

Avoid Assumptions:

Emphasizing the significance of evidence-based decision-making, the response debunks the assumption that writing a DataTable to a CSV file prior to bulk loading into MySQL would result in poor performance.

MySqlBulkLoader Outperforms:

In a series of tests, the MySqlBulkLoader class significantly outperformed standard MySQL data adapter updates within a transaction, completing the insertion of 100,000 rows in merely 5-6 seconds.

Code Solution:

To utilize the MySqlBulkLoader effectively:

<code class="csharp">// Create a temporary CSV file
string tempCsvFileSpec = @"C:\Users\Gord\Desktop\dump.csv";
using (StreamWriter writer = new StreamWriter(tempCsvFileSpec))
{
    Rfc4180Writer.WriteDataTable(rawData, writer, false);
}

// Perform bulk loading with MySqlBulkLoader
var msbl = new MySqlBulkLoader(conn);
msbl.TableName = "testtable";
msbl.FileName = tempCsvFileSpec;
msbl.FieldTerminator = ",";
msbl.FieldQuotationCharacter = '"';
msbl.Load();

// Cleanup
System.IO.File.Delete(tempCsvFileSpec);</code>

The above is the detailed content of How to Optimize Bulk Data Loading into MySQL from DataTable with MySqlBulkLoader?. For more information, please follow other related articles on the PHP Chinese website!