1  BEGIN {
 2      FS=OFS=",";
 3      RS="\n";
 4      outfile = "ap_db.csv";
 5  }
 6  
 7  NR !=1 {
 8      !$1 and $1 !=0 {print "NULL"}
 9  srand() $0;
10  }
11  
12  print > outfile