sql - Multiple subqueries when combined return too many results -


background

i have merged 2 long lists of financial transactions (one each of 2 companies) single table (actually dataview reasons not important here). these 2 companies did business lots of customers. want query returns total number of financial transactions each company had each customer.

for example:

customer        company    company b  customer x         10            0 customer y         15           26 customer z          0           71 

hence each customer has dealt @ least 1 company, , possibly both companies.

so far query has got far . . .

select v.[company],    v. [analysisname],     s1.cmttrans,    s2.cfltrans vmaincusttrans v left join (select [analysisname], count([analysisname]) cmttrans        vmaincusttrans         [company] = 'money'        group [analysisname]) s1        on v.[analysisname] = s1.[analysisname] left join (select [analysisname], count([analysisname]) cfltrans        vmaincusttrans         [company] = 'forex'        group [analysisname]) s2        on v.[analysisname] = s2.[analysisname] order v.[company], v.[analysisname] 

now sub query (s1) returns 89 customers sub query (s2) returns 37 customers yet whole query returns 18,989 lines there should between 89 , 126 (i.e. 89 + 37) lines, depending on how overlap there between company , company b

could kindly point out wrong query , how produce results want; namely list of customers, 2 counts iro of number of transactions have had each of 2 customers.

if i've got right (customer = analysisname)it should looks like:

select     v. [analysisname],     sum(case when [company] = 'money' 1 else 0 end) cmttrans,    sum(case when [company] = 'forex' 1 else 0 end) cfltrans vmaincusttrans v group v.[analysisname] order v.[analysisname] 

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