SQL - How do I get only the numbers after the decimal?

Question

How do I get only the numbers after the decimal?

Example: 2.938 = 938

Answer 1

You can use RIGHT :

 select RIGHT(123.45,2) return => 45

Answer 2

If you know that you want the values to the thousandths, place, it's

SELECT (num - FLOOR(num)) * 1000 FROM table...;

Answer 3

I had the same problem and solved with '%' operator:

select 12.54 % 1;

Answer 4

More generalized approach may be to merge PARSENAME and % operator. (as answered in two of the answers above)

Results as per 1st approach above by SQLMenace

select PARSENAME(0.001,1) 

Result: 001

select PARSENAME(0.0010,1) 

Result: 0010

select PARSENAME(-0.001,1)

Result: 001

select PARSENAME(-1,1)

Result: -1 --> Should not return integer part

select PARSENAME(0,1)

Result: 0

select PARSENAME(1,1)

Result: 1 --> Should not return integer part

select PARSENAME(100.00,1)

Result: 00

Results as per 1st approach above by Pavel Morshenyuk "0." is part of result in this case.

SELECT (100.0001 % 1)

Result: 0.0001

SELECT (100.0010 % 1)

Result: 0.0010

SELECT (0.0001 % 1)

Result: 0.0001

SELECT (0001 % 1)

Result: 0

SELECT (1 % 1)

Result: 0

SELECT (100 % 1)

Result: 0

Combining both:

SELECT PARSENAME((100.0001 % 1),1)

Result: 0001

SELECT PARSENAME((100.0010 % 1),1)

Result: 0010

SELECT PARSENAME((0.0001 % 1),1)

Result: 0001

SELECT PARSENAME((0001 % 1),1)

Result: 0

SELECT PARSENAME((1 % 1),1)

Result: 0

SELECT PARSENAME((100 % 1),1)

Result: 0

But still one issue which remains is the zero after the non zero numbers are part of the result (Example: 0.0010 -> 0010). May be one have to apply some other logic to remove that.

Answer 5

X - TRUNC(X), works for negatives too.

It would give you the decimal part of the number, as a double, not an integer.

Answer 6

CAST(RIGHT(MyField, LEN( MyField)-CHARINDEX('.',MyField)+1 ) AS FLOAT)