Question

When I am Entering a double number from C# to the DB I use a real type in the DB. When I check the value it is exactly what I enter.

Now when I go to retreive the value from the DB and store it into a C# double, it adds random decimal values at then end. The number in the database is the correct value that I want, but the value in C# as a double is just random (sometimes higher sometimes lower then the actual value.)

ie

- Enter into the db 123.43 as a double to an sql real.
- View the value in the DB, it's exactly 123.43
- Get the value from the DB and store into a C# double, value in the double is now 123.4300000305176

I have tried changing the type to float, decimal, etc. in the DB but these types actually alter the value when I put it into the DB to the same format as the above.

Any help on whats going on or how to fix it?

Answer 1

You should probably be using Decimal type. See What represents a double in sql server? for further explanation.