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SQL Count Payment Plans per customer

SQL Count Payment Plans per customer

SQL Count Payment Plans per customer

(OP)
I have a table that lists a payment plan by customer number, payment plan number, payment amount.  I wrote sql to group by customer number and payment plan number to calculate balance and number of payments left.  One Customer Number may have 2 payment plans. I need to show the number of payment plans for the customer.

select
customer
,payplannum
,count(customer)
,cast(sum(payment_amount) as numeric(10,2))
 from rmdetailedweekly
group by customer,payplannum

Sample Data:

Customer PayPlannum     Payment
12345    ABC2134        59
12345    ABC2134    59
12345     ABC2134    59
89231     ABC6135    79
89231     ABC6135    79
89231     ABC6135    79
89231     ABC6135    79
74425     ABC3531    54
12345     ABC9230    29
12345     ABC9230    29
12345     ABC9230    29
12345     ABC9230    29
12345     ABC9230    29

In the sample data customer 12345 has 2 different payplannum

need to return a 2 (and sum amounts) for this customer do I need to create a subquery for this?

RE: SQL Count Payment Plans per customer

(OP)
That works.  Thanks for your help.
 

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