在WHERE内部CAST，我该怎么办？

Question

是否可以这样做：

WHERE (SELECT CAST(dateFrom as date) FROM Bookings) = @day

如果是，如何正确地做到这一点？

Answer 1

我觉得你正在尝试这样做：

select * from Bookings
WHERE CAST(dateFrom as date)  = @day

Answer 2

如果config/logging.php有0行或1行，则只能这样做。

你可以这样做：

'days' => 30

这将检查bookings是否与WHERE EXISTS (SELECT 1 FROM Bookings b WHERE CAST(b.dateFrom as date) = @day) 匹配，这似乎是对您想要做的事情的合理猜测。