如何将两个SQL SELECT语句合而为一？

Question

I have these two SELECT statements:

SELECT Termin FROM crSpielTermine WHERE Status = 1

and this

SELECT TerminID FROM crSpielTermine WHERE Termin > ".$AlterTermin." ORDER BY Termin LIMIT 1

Right now, the first select supplies me $AlterTermin which I'm using in the second statement.

Can I combine these two statements and if yes, how I'm going to do this?

Answer 1

Supposing that your first select returns only a single item, you'd have something like that:

SELECT TerminID
FROM crSpielTermine
WHERE Termin > (SELECT Termin FROM crSpielTermine WHERE Status = 1)
ORDER BY Termin
LIMIT 1

Or this just to make sure it returns only one item

SELECT TerminID
FROM crSpielTermine
WHERE Termin > (SELECT Termin FROM crSpielTermine WHERE Status = 1 LIMIT 1)
ORDER BY Termin
LIMIT 1

Answer 2

You may use sub-query as follows which will give same result :

SELECT TerminID FROM crSpielTermine 
WHERE Termin > (SELECT Termin FROM  crSpielTermine WHERE Status = 1) 
ORDER BY Termin LIMIT 1