Remove trailing zeros in decimal value with changing length

Question

I have a procedure I am doing that displays odds but the client wants only significant digits to be shown. So, 1.50 would show as \'1.5\' and 1.00 would show as \'1\'.

Answer 1

If you are using PHP as the scripting language you may use the following:

$var = (float)$var_having_extra_0; // $var = (float) 17.5000

Or use the PHP floatval function:

$var = floatval($var_having_extra_0); // $var = floatval(17.5000)

Answer 2

To remove trailing zeros from a DECIMAL/NUMERIC or string type column, you can simply cast the value to DOUBLE, e.g.:

SELECT CAST(mycol AS DOUBLE) from mytable;

In fact, the "add zero" trick mentioned in other answers does the same, but in a more indirect (and likely less efficient) way, e.g:

SELECT CAST(mycol AS CHAR)+0 FROM mytable; -- converts to string, then to number
SELECT TRIM(mycol)+0 FROM mytable; -- ditto

Answer 3

SELECT TRIM(TRAILING '0' FROM yourodds)
FROM ...

Docs for the TRIM function.

Answer 4

this worked for me.. round the field to 2 decimal places and then trim any trailing zeros

So that 2.10 is 2.1

SELECT trim(round(FIELDNAME,2))+0 
FROM tbl_name
....

Answer 5

Taking forward the answer provided by @fooquency, if the column is already declared as a DECIMAL with a non-zero value for D in DECIMAL(M, D), we do not need to perform the WHERE condition

WHERE yourfield LIKE '%.%'

as the values in the column will always contain D digits after the decimal dot (.)

Answer 6

The best solution I found is to cast your round value to FLOAT:

SELECT CAST(ROUND(1.2345984372, 2) AS FLOAT)