I have 2 columns which I need to divide sum(cola)/sum(ColB), but I am not getting the desired results since SQL server seems to truncate values after decimal
For eg. I have-
select 281370/1035
is giving 271 using simple division, whereas actual result of division is 271.8550724637681 and I want to display 271.8
I tried
SELECT cast(round(281370/1035,1) as numeric(36,1))
but that results 271.0
In SQL Server, you have to cast the integers to decimal and you could use Round to get desired precision.
SELECT cast(Round(CAST(281370 AS decimal) / CAST(1035 AS decimal),1,1) as decimal(10,1))
The problem is that you given the int number and want a decimal result
try this
select convert(decimal(30,10),281370.0/1035.0)
or
select Round(convert(decimal(30,10),281370.0/1035.0),1,1)
#Stormcloak gives the answer to specifically wanting a single position as a mantissa, however to return an exact answer you could "simply" implicitly change the datatype.
select 281370.0/1035
Returns:
271.855072
In Presto DB:
select (CAST(11 as decimal(8,6))/CAST(7 as decimal(8,6))) as result
result:1.571429
decimal(xp,xs)
xp--> total number of digits(before decimal point+ after decimal
point)
xs--> number of digits after the decimal point
reference: https://prestodb.io/docs/current/functions/decimal.html
Related
I am trying to convert decimal values into non decimal number for a computed column in Oracle SQL.
Please see the below code. But I am not able to get the desired output.
Query:
Select cast(cost_account)*100/cast(amnt_fin) as "computed_LTV"
From Loan_app.
Here I Want a new column name as computed_LTV with the required calculation with no decimal in the output.
It is ROUND you're looking for, I presume.
SELECT ROUND (cost_account * 100 / amnt_fin) AS "computed_LTV" FROM Loan_app
If by "non-decimal number" you mean "integer", just use trunc():
Select trunc(cost_account * 100 / amnt_fin) as computed_LTV
From Loan_app;
I see that I need to return the sum of a column in Oracle for which the query I use is the following
select sum(scores) from table_x;
I want to return the results always like this
If the result is an integer, say 1000, the output should be 1000.00 (by default 2 precision digits for the fractional part)
If the result is a decimal with n digits precision, the result will should be returned as it is for example, if sum = 1000.555666, then I want the result to be 1000.555666.
The problem is when I modify the query to use cast like
select cast(sum(scores) as binary_double) from table_x
When the sum is 1000, I get the result as 1000.0, but I want one more zero in the fractional part (1000.00) since I do string comparison of results. Tried numerous solutions like casting to different data types, but can't get the integer results in the form I want.
Try:
select to_char( sum(scores), 'FM9999999999D009999' )
from table_x;
Please refer to the documentation of to_char function for details ==> click
select round((cast(56/3 AS DECIMAL (4,2))),1)
is showing 18 output instead of 19 , where as actual value is 18.66.
My Round function is not working
please help.
The problem is 56/3 is an integer calculation which means no floating point numbers.
You need to use floating point numbers in the initial calculation e.g. 56.0/3. Also, if you want to round to 19 then you need to round to the nearest whole number, ROUND(x, 1) will round to the first decimal place - you need to pass 0 to round up to 19.
SELECT ROUND((CAST(56.0/3 AS DECIMAL (4,2))),0)
Alternatively, you could switch ROUND for CEILING
select CEILING(CAST(56.0/3 AS DECIMAL(4,2)))
Your section of the code:
CAST( 56/3 AS DECIMAL )
First evaluates the 56/3 which returns 18. This is then cast to decimal, giving 18.0.
You need to cast either the numerator or denominator before the division occurs.
The round function is working fine -- it's just not using the input you think it is.
Convert one of your integer values before you divide the numbers:
select round(56/convert(DECIMAL (4,2),3),0);
If you do not so you divide integers which results in 18 not 18.66
I'm trying to convert a number to a decimal with two decimals places.
SELECT CONVERT(DECIMAL(10,2),12345)
The above would return 12345.00 but I'm trying to achieve 123.45
You need something like that:
SELECT CONVERT(DECIMAL(15,2),12345/100.0)
SELECT CONVERT(DECIMAL(10,2),CAST(12345 as float)/CAST(100 as float))
Correction: The premise is somewhat flawed, as the data type of a literal number without a decimal point is int, not numeric as implied by the question. In that case, you do need to convert the initial value to either numeric or decimal before dividing:
SELECT CONVERT(DECIMAL,12345)/100
or
SELECT CAST(12345 AS DECIMAL)/100
(cast is the SQL standard, so if you ever want to apply this to other databases, it would be the preferred method.)
Alternately, you can just add a decimal point to the divisor, as SQL server will return the more precise data type when doing arithmetic on heterogeneous types:
SELECT 12345/100.0
According to the documentation, the numeric data type is functionally equivalent to the decimal datatype, so there's really no reason to convert between the two. It seems that all you really want to do is divide the value you have by 100:
SELECT 12345/100
I have in my select clause:
AVG (cast(scale as decimal(5,2)))
I keep getting a number like: 0.6523412897, nothing I do seems to get me to my desired: 0.65.
Basically I want to have a scale of 2 (two decimal places).
Thanks
Cast the average, don't average the cast:
cast(AVG(scale) as decimal(5,2))
Update
Using ROUND() changes the value not the type. Eg. select round(0.12345,2) returns 0.12000 as it should becuase it rounds 0.12345 to 0.12 but keeps the original type with 5 decimals after the point, hence 0.12000. To change the type one must use cast, as in my post.
Try
ROUND(AVG(scale), 2)
It depends upon the database you are using, but ROUND is the answer for SQL Server:
ROUND