How can the MySQL query be improved to ensure the correct execution and handling of errors?

To ensure correct execution and handling of errors in a MySQL query, you can use try-catch blocks to catch any exceptions that may occur during the query execution. By wrapping the query execution in a try block and catching any exceptions in a catch block, you can handle errors gracefully and provide appropriate feedback to the user. 

try {
    $conn = new mysqli($servername, $username, $password, $dbname);
    
    // Check connection
    if ($conn->connect_error) {
        throw new Exception("Connection failed: " . $conn->connect_error);
    }
    
    $sql = "SELECT * FROM table_name";
    $result = $conn->query($sql);
    
    if ($result === false) {
        throw new Exception("Error executing query: " . $conn->error);
    }
    
    // Process the query result
    
    $conn->close();
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}

Keywords

MySQL query optimization error handling PHP exception handling

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