decimal type in d

[vit via Digitalmars-d-learn]

Hello, I want read decimal type from sql db, do some arithmetic 
operations inside D program and write it back to DB. Result need 
to be close to result as if this operations was performed in sql 
DB. Something like C# decimal.
Exists this kind of library ind D? (ideally `pure @safe @nogc 
nothrow`).