That is not what I asked.
Suppose in OPL, I have the following tuple
When I read data in excel, the rows might be in the following order.
K 9 8
D 5 7
A 1 19
B 2 4
Now, when I start reading CSV file, the first row is “K 9 8”, but I should select A 1 19 as the first row and pass that into my array as  =19.
I’d like to do this operation while reading the CSV file.
Currently, I am using two inner for loop and if statement. In other words;
for(var i in OPLTuple)
for(var j in CSVrows)
if(i.first == j.first && i.second == j.first)
myArray [ < j.first, j.first>] = j.third
It runs extremely slow due to the size of my problem. Could you tell me if there is an efficient way of doing this operation in OPL?