convert float into varchar in SQL server without scientific notation

Question

convert float into varchar in SQL server without scientific notation and trimming decimals.

for Ex:

i have float value 1000.2324422, then it

Answer 1

There are quite a few answers but none of them was complete enough to accommodate the scenario of converting FLOAT into NVARCHAR, so here we are.

This is what we ended up with:

DECLARE @f1 FLOAT = 4000000
DECLARE @f2 FLOAT = 4000000.43

SELECT TRIM('.' FROM TRIM(' 0' FROM STR(@f1, 30, 2))),
       TRIM('.' FROM TRIM(' 0' FROM STR(@f2, 30, 2)))
SELECT CAST(@f1 AS NVARCHAR),
       CAST(@f2 AS NVARCHAR)

Output:

------------------------------ ------------------------------
4000000                        4000000.43

(1 row affected)

                               
------------------------------ ------------------------------
4e+006                         4e+006

(1 row affected)

In our scenario the FLOAT was a dollar amount to 2 decimal point was sufficient, but you can easily increase it to your needs. In addition, we needed to trim ".00" for round numbers.