Conversion failed when converting the ****** value '******' to data type ******

Question

I\'m getting this error from SQL Server on SSMS 17 while running a giant query:

Conversion failed when converting the ****** value \'******\' to data type

Answer 1

I had the same error when trying to combine an nvarchar and int into a single string. Usually it tells me the data type where I screwed up but occasionally its the error you got.

I went from

SELECT ';' + [myNumber]

to

SELECT ';' + CAST([myNumber] as nvarchar(100))

which solved it for me.

So as the others have suggested, I guess it is something similar and you need to CAST or CONVERT one of your values to match the rest.