Sta: with Dates

[Das Goravani]

When doing statement preparation with the Sta: method
And your code includes referencing fields or columns
Can you use the @ for bind variables?
What should you do with dates?

Sta: WHERE invoice_date>=@[iDateFrom]

Is that correct?

Can you use bind variables in a Sta: method like that?

Or should you just quote them

Specifically curious about dates, as text and numbers I know.