Sno Subject roll-Number Name
1 English 100 ABC
2 Maths 100 ABC
3 Science 100 ABC
4 Computer 100 ABC
5 English 200 DEF
6 English 300 GHI
7 Maths 300 GHI
8 Science 400 JKL
9 Computer 500 MNO
10 English 500 MNO
1 English 100 ABC
2 Maths 100 ABC
3 Science 100 ABC
4 Computer 100 ABC
5 English 200 DEF
6 English 300 GHI
7 Maths 300 GHI
8 Science 400 JKL
9 Computer 500 MNO
10 English 500 MNO
sorted roll-Number wise
now i just wanna print if roll number repeats then it will show only Ist time, all the other record having same roll number would be blank
Sno Subject roll-Number Name Print field
1 English 100 ABC 100
2 Maths 100 ABC ___(Space)
3 Science 100 ABC ___(Space)
4 Computer 100 ABC ___(Space)
5 English 200 DEF 200
6 English 300 GHI 300
7 Maths 300 GHI ___(Space)
8 Science 400 JKL 400
9 Computer 500 MNO 500
1 English 100 ABC 100
2 Maths 100 ABC ___(Space)
3 Science 100 ABC ___(Space)
4 Computer 100 ABC ___(Space)
5 English 200 DEF 200
6 English 300 GHI 300
7 Maths 300 GHI ___(Space)
8 Science 400 JKL 400
9 Computer 500 MNO 500
how I can do this using DFSort.