我有这3个疑问：

SELECT sum(sales) AS salesTotal FROM reporting WHERE date = '2023-01-10';
SELECT sum(traffic) AS trafficTotal FROM reporting WHERE date = '2023-02-15';
SELECT sum(transaction) AS transactionTotal FROM reporting WHERE date = '2023-03-05';

现在，我想在一个带有别名的查询中运行这3个查询。
例如，我尝试的是：

TotalSalesValue AS SELECT sum(sales) AS salesTotal FROM reporting WHERE date = '2023-01-10',
TotalTrafficValue AS SELECT sum(traffic) AS trafficTotal FROM reporting WHERE date = '2023-02-15',
TotalTransactionValue AS SELECT sum(transaction) AS transactionTotal FROM reporting WHERE date = '2023-03-05';

我尝试了上述查询，但它给我语法错误说：

ER_PARSE_ERROR: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'TotalSalesValue AS SELECT

我所期待的回报是这样的：

{
    "TotalSalesValue": 200,
    "TotalTrafficValue": 150,
    "TotalTransactionValue": 10
}

有人能帮我纠正语法吗？