Question : Sort Records in Descending Order on Pivot Chart

Records appear to be sorted based on the description of the legend key

Is it possible to sort based on the numeric value of the data?

Answer : Sort Records in Descending Order on Pivot Chart

what kinf of merge?

there are many ways, you can use sed/awk too ..

awk -F\| 'BEGIN {
while ((getline < "file2") > 0)
   f2data[$1] = $2 "|" $3 }
{c2=f2data[$2]
 if (c2=="") c2="|"
 print $0 c2 "|"
}' file1

OR :

cat file1 file2 >file3

or

cat file2 >>file1
or

tee -a file1 file2