Float datatype with 2 digits after decimal point In SQL server float datatype does not display trailing zeros after decimal point

declare @num as float
set @num=5.20
select @num


will dispaly only 5.2
But i want it to display as 5.20

After a little research i found that it can be solved by using

select CAST(@num AS numeric(10,2))


But this is not the solution i am expecting. Is there any method like setting datatype or changing datatype so that i can achieve the same?(It will be better if any variants are there in float which can do the same)

If it is possible then i need not change the SQL statement and include cast etc. So please help me on this.
This can be achieved with the decimal datatype.

See below for an example:

declare @num as float;
set @num=5.20;

select convert(decimal(10, 2), @num);


The output here will be 5.20.

After re-reading your question:


  But this is not the solution i am expecting. Is there any method like setting datatype or changing datatype so that i can achieve the same?


Is there a reason why you are specifically using float?  Oftentimes people tend to default to that datatype when decimal is more than sufficient.