SELECT $ (dollar sign)

Question

I have good experience in SQL Server, But suddenly I discovered this strange SELECT command

SELECT $ 

or

SE         


        

Answer 1

After a little messing around, I've figured since this happens no matter what currency symbol is used, SQL server is implying that the field is a currency field.

If you add numbers after the currency symbol, in this case a dollar so:

SELECT $4

SQL server will return 4.00

So SQL Server is taking the use of $ and assuming we want to create a field with the MONEY datatype and as we haven't entered a value after the currency symbol, SQL Server assumes the value is 0, though in my opinion this should return NULL.