Will GETUTCDATE() return the same value if used twice in the same statement?

Question

I have a trigger that automatically sets the CreationDate and ModifiedDate of the given entry to the current UTC time whenever a value is entered. (CreationDate will remain

Answer 1

DECLARE @Counter INT = 1

WHILE (1 = (SELECT 1 WHERE GETUTCDATE()  = GETUTCDATE()))
SET @Counter = @Counter+1

SELECT @Counter /*Returns almost immediately with a number in the 000s for me.*/

And just to prove this happens when in the SELECT list also.

DECLARE @T TABLE 
(
rownum INT IDENTITY(1,1) PRIMARY KEY,
d1 datetime,
d2 datetime
)

WHILE (NOT EXISTS(SELECT * FROM @T WHERE d1 <> d2))
    BEGIN
    DELETE FROM @T
    INSERT INTO @T 
    SELECT GETUTCDATE(),GETUTCDATE()
    END

SELECT * FROM @T

BTW: IF for some reason you want to evaluate GETUTCDATE() on a per row basis you can wrap it in a scalar UDF.

CREATE FUNCTION dbo.GETUTCDATE()
RETURNS DATETIME
WITH SCHEMABINDING
AS
BEGIN
RETURN GETUTCDATE()
END
GO

SELECT GETUTCDATE(),dbo.GETUTCDATE()
FROM master..spt_values