如果stmt带有NoRows或Int？sql

我不知道最好的办法是什么。当前查询很好。问题是如果没有返回任何行，我希望if语句为true。我也不想写两次查询，那么我该如何写才能使if语句为true并运行呢

IF (select AnInt from ATable where Cond) = expectedInt
begin ... end

像这样

DECLARE @Test INT

SELECT @Test = AnInt
FROM ATable
WHERE Cond

IF @Test IS NULL OR @Test = expectedInt
BEGIN
...
END

如果NULL AnInt不可能，则可以使not匹配的NULL子选择结果等于EXPECTED AnInt

---

您的子查询是否保证返回不超过1行？+1最好使用isnull，因为coalesce将执行两次查询。谢谢，但我认为bummi的答案比我的更有效

IF Coalesce((select TOP 1 AnInt from ATable where Cond),expectedInt) = expectedInt
begin
end

IF isnull((select AnInt from ATable where Cond), expectedInt) = expectedInt