topic Find the cumulative sum (Running total) of given data set values using SQL...? in SAS Programming

Find the cumulative sum (Running total) of given data set values using SQL...?

varmalh — Wed, 18 Sep 2019 02:13:12 GMT

hello,

can someone please advise how to get Cumulative sum(Running total) of below given data set in Proc SQL...?

data a;
input emp$ sal;
cards;
emp1 1000000
emp2 2000000
emp3 3000000
;run;

data b;
input emp$ sal;
cards;
emp1 1000000
emp3 7000000
emp4 4000000
;run;

data c;
merge a b;
by emp;
total+sal;
run;

output should be like below:

--emp--+---sal--+----total--+-

emp1 1000000 1000000
emp2 2000000 3000000
emp3 7000000 10000000
emp4 4000000 14000000

------------------------------------

Thanks and Regards,

varmal

Re: Find the cumulative sum (Running total) of given data set values using SQL...?

34reqrwe — Wed, 18 Sep 2019 03:03:13 GMT

Proc SQL is not a good way to get a cumulative total . You already have the most elegant solution using data step - why do you need to use Proc SQL?

Re: Find the cumulative sum (Running total) of given data set values using SQL...?

ChrisNZ — Wed, 18 Sep 2019 05:03:40 GMT

SQL is not very good at processing rows in a given order. For this reason a data step is better suited as mentioned.

Re: Find the cumulative sum (Running total) of given data set values using SQL...?

varmalh — Thu, 19 Sep 2019 01:14:39 GMT

I understand you point but there must a simple or complex way of getting the same output..?

Re: Find the cumulative sum (Running total) of given data set values using SQL...?

34reqrwe — Thu, 19 Sep 2019 01:28:56 GMT

The simple way is using data step . Yes it can be done using Proc SQL but it is not a good way to tackle the problem . Just like you wouldn't eat soup with a fork . Why do you want to user Proc SQL?