I want to separate the two numbers and get the answer with the remainder.
select 13/5;
I get an answer 2.
I add types.
select 13::numeric/5::numeric;
I get an answer 2.6000000000000000.
But I need only one number after the decimal point. How do I get 2.6?
Like so:
SELECT (13.0 / 5.0)::numeric(10, 1)
The .0 tells PG that it is a numeric literal. Division of two numerics result in numeric.
You can use ROUND to restrict to 1 decimal place. Note that you only need to cast the first value as numeric:
SELECT ROUND(13::numeric/5, 1)
Output
2.6
Try:
select round(13::numeric/5::numeric, 1);
https://www.w3resource.com/PostgreSQL/round-function.php
If you want it displayed in that fashion, you should convert the result to a string with the proper format:
SELECT to_char(13::numeric / 5::numeric, '9999.9999FM');
to_char
---------
2.6
(1 row)
Related
In Microsoft SQL Server 2005, why do the following commands produce integer results?
SELECT cast(151/6 AS DECIMAL(9,2))
SELECT 151/6
In the first you are getting the result of two integers and then casting the result as DECIMAL(9,2). In the second you're just dividing two integers and that's expected.
If you cast one of the integers as a decimal BEFORE you do the division, you'll get a decimal result.
SELECT 151/CAST(6 AS DECIMAL (9,2))
Yes that is standard behavior
do
SELECT 151/6.0
or
SELECT 151/(CONVERT(DECIMAL(9,2),6))
or
SELECT 151/(6 * 1.0)
Because 151 and 6 are integers and you are doing integer division, even before the cast.
You need to make sure at least one of the arguments is a float type:
SELECT 151.0/6
Or
SELECT 151/6.0
Not a direct answer to your question. Still worth to take a look at Operators in Expressions if you need this in SSRS
/ Divides two numbers and returns a floating-point result.
\ Divides two numbers and returns an integer result.
Mod Returns the integer remainder of a division.
You need to give a placeholder for decimal places as well
Example
SELECT 151.000000/6
OR
SELECT 151/6.000000
Both will produce
25.16666666
For the same reason they would in C#, Java and other mainstream languages.
In integer arithmetic, the CAST is after the maths...
The CAST statement is a bit verbose. You can use the following instead:
DECLARE #TO_FLOAT FLOAT = 1.0;
SELECT (1 * #TO_FLOAT) / 2;
Or use a different multiplier type like DECIMAL if you prefer.
Try this:
SELECT 1.0*cast(151/6 AS DECIMAL(9,2))
SELECT 1.0*151/6
I am trying to round my value to one decimal, below is sample which I tried.
INPUT DESIRED OUTPUT
129.700 129.7
129.769 129.8
I have tried
SELECT CAST(ROUND(('129.768'),0) AS DECIMAL(10,1))
FROM Table1
is not giving correct value.
Please help.
You want one digit after the decimal place, so that would be an argument of 1, not 0:
SELECT CAST(ROUND('129.768', 1) AS DECIMAL(10, 1))
I'm not sure why you feel the need to convert back to a decimal -- unless you are saving the value to a table and want to control the type. This also does what you want:
SELECT ROUND('129.768', 1)
I have a query (SQL Server) that returns a decimal. I only need 2 decimals without rounding:
In the example above I would need to get: 3381.57
Any clue?
You could accomplish this via the ROUND() function using the length and precision parameters to truncate your value instead of actually rounding it :
SELECT ROUND(3381.5786, 2, 1)
The second parameter of 2 indicates that the value will be rounded to two decimal places and the third precision parameter will indicate if actual rounding or truncation is performed (non-zero values will truncate instead of round).
Example
You can see an interactive example of this in action here.
Another possibility is to use TRUNCATE:
SELECT 3381.5786, {fn TRUNCATE(3381.5786,2)};
LiveDemo
If you want to control the representation, you need to output the value as a string. One method is to convert to a decimal and then to a string:
select cast(cast(total as decimal(10, 2)) as varchar(255))
Another method is to convert to a string using str(). However, this often requires the removal of spaces:
select replace(str(total, 10, 2), ' ', '')
SELECT CAST ((SUM(r.SalesVolume)/1000) AS decimal(3,3)) FROM RawData r
The above is a part of a query that I am trying to run but returns an error:
Lookup Error - SQL Server Database Error: Arithmetic overflow error converting int to data type numeric.
Not sure what this means.
The result column looks like(Without dividing by 1000 and casting):
Total_Sales_Volume
64146
69814
68259
56318
66585
51158
44365
49855
49553
88998
102739
55713
Tried casting as float but doesnt help.
The Problem is decimal(3,3) --> this means a number with 3 digit, 3 of them behind the decimal point. If you want a number like this 1234567.123 you would have do declare it as decimal(10,3)
Try this:
SELECT CAST ((SUM(r.SalesVolume)/1000.0) AS decimal(6,3)) FROM RawData r
decimal(3,3) means that you allow numbers with 3 digits in total, and 3 of these are behind the comma ... I think you meant decimal(6,3)
EDIT: In addition, you need to to divide by 1000.0, not by 1000.
If you divide by 1000, it is an integer division.
If you divide by 1000.0, then it becomes a decimal division, with commas.
Try following:
SELECT CAST ((SUM(r.SalesVolume)/1000) AS numeric(6,3)) FROM RawData r
In Microsoft SQL Server 2005, why do the following commands produce integer results?
SELECT cast(151/6 AS DECIMAL(9,2))
SELECT 151/6
In the first you are getting the result of two integers and then casting the result as DECIMAL(9,2). In the second you're just dividing two integers and that's expected.
If you cast one of the integers as a decimal BEFORE you do the division, you'll get a decimal result.
SELECT 151/CAST(6 AS DECIMAL (9,2))
Yes that is standard behavior
do
SELECT 151/6.0
or
SELECT 151/(CONVERT(DECIMAL(9,2),6))
or
SELECT 151/(6 * 1.0)
Because 151 and 6 are integers and you are doing integer division, even before the cast.
You need to make sure at least one of the arguments is a float type:
SELECT 151.0/6
Or
SELECT 151/6.0
Not a direct answer to your question. Still worth to take a look at Operators in Expressions if you need this in SSRS
/ Divides two numbers and returns a floating-point result.
\ Divides two numbers and returns an integer result.
Mod Returns the integer remainder of a division.
You need to give a placeholder for decimal places as well
Example
SELECT 151.000000/6
OR
SELECT 151/6.000000
Both will produce
25.16666666
For the same reason they would in C#, Java and other mainstream languages.
In integer arithmetic, the CAST is after the maths...
The CAST statement is a bit verbose. You can use the following instead:
DECLARE #TO_FLOAT FLOAT = 1.0;
SELECT (1 * #TO_FLOAT) / 2;
Or use a different multiplier type like DECIMAL if you prefer.
Try this:
SELECT 1.0*cast(151/6 AS DECIMAL(9,2))
SELECT 1.0*151/6