Summarizing Data And Building A String With Summarized Data

Hi there,

I'm faced with a bit of an issue within SSIS and I was wondering if anyone could help. I have data that looks like the following:

TABLE 1:::
CustomerID StaffID Percentage
A123 1234 1
A124 1245 1
A125 1234 0.7
A125 1443 0.3
B117 6653 1
B154 8899 1
C776 1443 0.2
C776 1337 0.6
C776 1245 0.2


I need to be able to summarize the data above and build up a string that should look like the following:

TABLE 2:::
CustomerID StringID
A123 1234||1
A124 1245||1
A125 1234||0.7||1443||0.3
B117 6653||1
B154 8899||1
C776 1443||0.2||1337||0.6||1245||0.2


As you can see in Table 1, if a CustomerID has only one StaffID associated to it, the "Percentage" Column's value is 1. In the cases where there is more than one StaffID associated to a particular CustomerID, the percentage column get's split up among the StaffIDs, however the sum of this split can never exceed 1 (100%) per CustomerID.

I need to know how to find the cases where there is more than one StaffID associated to a CustomerID, group the CustomerIDs, and build a string made up with the StaffID and Percentages as shown in Table 2.

Any help would be greatly appreciated, as I've struggled with this one for a while and have hit a brick wall.

Ciao,
Colin