November 17, 2006 at 4:53 pm
I have a field that is type nvarchar, but I don't know if it actually has any Unicode characters in it or not. I would like to change it to varchar if it doesn't currently use Unicode characters. Is there some way I can query this field for just the records that contain Unicode characters?
I tried converting an nvarchar field that I know does not contain Unicode characters, and SQL Server still gives me a warning that data might be lost - I wish there was some way for it to tell me when data will actually be lost.
November 17, 2006 at 10:07 pm
I guess if you try to select a convert(varchar(...), yourcol) you'll find out.
select convert(varchar(...), yourcol) as varcol
, yourcol
from yourtable
where convert(varchar(...), yourcol) <> yourcol
Johan
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November 20, 2006 at 11:26 am
Thanks, it worked. I didn't realize that ASCII could handle acute accents, but apparently it can.
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