SQL Server: Error converting data type nvarchar to numeric

Question

If I run the SQL query below; I get the following error:

Error converting data type nvarchar to numeric.

COLUMNA c

Answer 1

I was running into this error while converting from nvarchar to float.
What I had to do was to use the LEFT function on the nvarchar field.

Example: Left(Field,4)

Basically, the query will look like:

Select convert(float,left(Field,4)) from TABLE

Just ridiculous that SQL would complicate it to this extent, while with C# it's a breeze!
Hope it helps someone out there.