How can one ensure data integrity when converting databases between SQLight and MySQL using PHP?

When converting databases between SQLite and MySQL using PHP, one way to ensure data integrity is to carefully map the data types and structures of the tables in both databases. This includes ensuring that primary keys, foreign keys, indexes, and constraints are properly transferred. Additionally, it is important to handle any data type conversions or differences between the two database systems to prevent data loss or corruption during the conversion process. 

// Example code to ensure data integrity when converting databases between SQLite and MySQL using PHP

// Connect to SQLite database
$pdoSQLite = new PDO('sqlite:sqlite.db');

// Connect to MySQL database
$pdoMySQL = new PDO('mysql:host=localhost;dbname=mysql_db', 'username', 'password');

// Fetch table schema from SQLite database
$stmtSQLite = $pdoSQLite->query("SELECT sql FROM sqlite_master WHERE type='table'");
$tablesSQLite = $stmtSQLite->fetchAll(PDO::FETCH_COLUMN);

// Create tables in MySQL database based on SQLite schema
foreach ($tablesSQLite as $table) {
    $pdoMySQL->exec($table);
}

// Fetch data from SQLite tables
$stmtData = $pdoSQLite->query("SELECT * FROM table_name");
$data = $stmtData->fetchAll(PDO::FETCH_ASSOC);

// Insert data into MySQL tables
foreach ($data as $row) {
    $columns = implode(', ', array_keys($row));
    $values = implode(', ', array_map(function($value) {
        return is_string($value) ? "'" . $value . "'" : $value;
    }, array_values($row)));
    $pdoMySQL->exec("INSERT INTO table_name ($columns) VALUES ($values)");
}

// Close database connections
$pdoSQLite = null;
$pdoMySQL = null;

Keywords

SQLite MySQL data integrity database conversion PHP functions

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