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Converting Int To Time

Bill Fellows has a pop quiz for us:

Given the following DDL

CREATE TABLE dbo.IntToTime
( CREATE_TIME int
);

What will be the result of issuing the following command?

ALTER TABLE dbo.IntToTime ALTER COLUMN CREATE_TIME time NULL;

Clearly, if I’m asking, it’s not what you might expect.

Click through if you have not memorized your implicit conversion tables.