How to merge multiple datasets in reporting services

Question

we are having difficulty in developing a report because the dataset we needed for the report is coming from 2 separate stored procedure. these 2 stored procedure are returninga single table each, and we need 5 columns in the first table and 4 columns from
the second table, and present these 9 fields into a table in the report.
To give an illustration, let's say that my first stored procedure returns the following 5 fields from the customer table: first name, last name, address, email, phone. While, the second stored procedure returns the following 4 fields from the orders table:
item name, quantity, unit price, discount. The two tables are related by customer_id field which is present in both tables. Customer table has a one to many relationship with orders table.
This could have been easily implemented by using an inner join and writing a sql query. However, due to business requirements we need to generate the report using the 2 stored procedure mentioned. Please let me know if there is any workaround for this. We
are using SSRS 2012. Many Thanks in advance

Answer 1

I can see 2 ways of achieving this.
1. Using LookupSet function for 1:N relationship.
Refer
http://www.bidn.com/blogs/DustinRyan/bidn-blog/2037/lookup-and-lookupset-functions-new-in-ssrs-2008-r2
Refer http://technet.microsoft.com/en-us/library/ee240819.aspx
2. Working with both stored procedure and creating a new dataset. For example, Create temp tables and then,
INSERT INTO #Table1 EXEC PROC1
INSERT INTO #Table2 EXEC PROC2
SELECT * FROM #Table1 A INNER JOIN #Table2 B ON A.CustomerID = B.CustomerID
Refer
http://stackoverflow.com/questions/12621469/sql-server-insert-stored-procedure-results-into-table-based-on-parameters
Regards, RSingh