3 file string matching pattern awk in tab separated file - bash

Question

I've got 3 file:
FILE 1
NODE_2020 Cancer
NODE_2029 Thug
NODE_0902 Snap
FILE 2
NODE_2020 Mikro
NODE_2029 Bold
NODE_0902 Mini
FILE 3
NODE_2020 Gold
NODE_2080 Damn
NODE_0900 Gueo
I need to search for the first column of file 1 into the other two: if value matches, then column 2 of file 2 and column 2 of file 3 will be printed into a single file; if not, a "NO MATCH" string will be printed in return. Output file will be made like this:
Query File1 File2 File3
NODE_2020 Cancer Mikro Gold
NODE_2029 Thug Bold NO MATCH
NODE_0902 Snap Mini NO MATCH
Awk/sed/perl solutions are really appreciated. What I'm stuck on doing is to use first column of file 1 as a variable to look with just an if statement into other 2 files.
Here's what I've tried, to use column from file 1 and match into file 2:
awk 'NR==FNR{a[NR]=$1;next} { print a[FNR],"\t", $2 }' file1 file2
It actually works for 2 files. No idea on how to extend to three file, and to add the "NO MATCH" pattern.

Answer 1

With GNU awk for true multi-dimensional arrays and ARGIND:
$ cat tst.awk
BEGIN { OFS="\t" }
(NR==FNR) || ($1 in vals) {
vals[$1][ARGIND] = $2
}
END {
printf "%s%s", "Query", OFS
for (fileNr=1; fileNr<=ARGIND; fileNr++) {
printf "%s%s", ARGV[fileNr], (fileNr<ARGIND ? OFS : ORS)
}
for (key in vals) {
printf "%s%s", key, OFS
for (fileNr=1; fileNr<=ARGIND; fileNr++) {
val = (fileNr in vals[key] ? vals[key][fileNr] : "NO MATCH")
printf "%s%s", val, (fileNr<ARGIND ? OFS : ORS)
}
}
}
$ awk -f tst.awk file1 file2 file3
Query file1 file2 file3
NODE_2020 Cancer Mikro Gold
NODE_0902 Snap Mini NO MATCH
NODE_2029 Thug Bold NO MATCH

Answer 2

You may use this awk:
awk -v OFS='\t' 'function bval(p,q) {
return ((p,q) in b ? b[p,q] : "NO MATCH")
}
FNR == NR {
a[$1] = $2
next
}
{
b[FILENAME,$1] = $2
}
END {
print "Query", ARGV[1], ARGV[2], ARGV[3]
for (i in a)
print i, a[i], bval(ARGV[2],i), bval(ARGV[3],i)
}' file{1,2,3}
Query file1 file2 file3
NODE_2020 Cancer Mikro Gold
NODE_0902 Snap Mini NO MATCH
NODE_2029 Thug Bold NO MATCH