phpcms数据库迁移

// 示例代码：检查数据一致性
function checkDataConsistency($sourceDb, $targetDb) {
    $sourceData = $sourceDb->query("SELECT * FROM your_table");
    $targetData = $targetDb->query("SELECT * FROM your_table");

    if ($sourceData !== $targetData) {
        echo "Data inconsistency detected!";
        // 进一步处理不一致的数据
    }
}

// 示例代码：分批次迁移数据
function migrateDataInBatches($sourceDb, $targetDb, $batchSize = 1000) {
    $offset = 0;
    while (true) {
        $sourceData = $sourceDb->query("SELECT * FROM your_table LIMIT $offset, $batchSize");
        if (empty($sourceData)) {
            break;
        }
        foreach ($sourceData as $row) {
            // 插入数据到目标数据库
            $targetDb->insert("your_table", $row);
        }
        $offset += $batchSize;
    }
}

-- 示例代码：修改数据库用户权限
GRANT ALL PRIVILEGES ON your_database.* TO 'your_user'@'localhost';
FLUSH PRIVILEGES;