What potential pitfalls should be considered when updating data in MySQL DB tables using batch processing in PHP?

Potential pitfalls when updating data in MySQL DB tables using batch processing in PHP include: 1. Memory usage: Processing a large number of records in a single batch can consume a significant amount of memory, potentially leading to performance issues or crashes. 2. Transaction management: Ensuring that all updates are either committed or rolled back as a single transaction to maintain data consistency. 3. Error handling: Properly handling errors that may occur during the batch processing to prevent data corruption or incomplete updates. 

// Example code to update data in MySQL DB tables using batch processing with error handling and transaction management

// Start transaction
$pdo->beginTransaction();

try {
    // Your batch processing logic here
    
    // Commit transaction if all updates are successful
    $pdo->commit();
} catch (Exception $e) {
    // Rollback transaction if an error occurs
    $pdo->rollBack();
    echo "Error: " . $e->getMessage();
}

Keywords

MySQL batch processing PHP data update error handling

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