How do you update a DateTime field in T-SQL?

Question

The following query does not update the datetime field:

update table
SET EndDate = \'2009-05-25\'
WHERE Id = 1

I also tried it with no dashes,

Answer 1

Normally, it should work.

But can you try this? I don't have SQL on my home PC, I can't try myself

UPDATE table
SET EndDate = '2009-05-25 00:00:00.000'
WHERE Id = 1

Answer 2

If you aren't interested in specifying a time, you can also use the format 'DD/MM/YYYY', however I would stick to a Conversion method, and its relevant ISO format, as you really should avoid using default values.

Here's an example:

SET startDate = CONVERT(datetime,'2015-03-11T23:59:59.000',126) WHERE custID = 'F24'

Answer 3

UPDATE TABLE
   SET EndDate = CAST('2017-12-31' AS DATE)
 WHERE Id = '123'

Answer 4

When in doubt, be explicit about the data type conversion using CAST/CONVERT:

UPDATE TABLE
   SET EndDate = CAST('2009-05-25' AS DATETIME)
 WHERE Id = 1

Answer 5

Is there maybe a trigger on the table setting it back?

Answer 6

That should work, I'd put brackets around [Date] as it's a reserved keyword.