What are the potential pitfalls of using temporary tables in PHP and MySQL queries?

Potential pitfalls of using temporary tables in PHP and MySQL queries include increased server load, potential data inconsistency, and security vulnerabilities. To mitigate these risks, it is important to properly manage temporary tables by dropping them after use, ensuring proper indexing for efficient querying, and sanitizing user input to prevent SQL injection attacks. 

// Create a temporary table
$sql = "CREATE TEMPORARY TABLE temp_table (
            id INT AUTO_INCREMENT PRIMARY KEY,
            name VARCHAR(255)
        )";

// Execute the query
if ($conn->query($sql) === TRUE) {
    echo "Temporary table created successfully";
} else {
    echo "Error creating temporary table: " . $conn->error;
}

// Drop the temporary table after use
$sql = "DROP TEMPORARY TABLE IF EXISTS temp_table";
$conn->query($sql);

Keywords

temporary tables PHP MySQL queries performance

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