hi expert i have very basic query, i want to do some grouping on S.No wise,i.e
| S.No | Product Name | qty | Price |
| 1 | In door Unit | 1 | 900 |
| 2 | out door unit | 1 | 1200 |
| 3 | in door | 1 | 1000 |
| 4 | out door | 1 | 2000 |
| 5 | window indoor unit | 1 | 3000 |
| 6 | window out door unit | 1 | 2000 |
now i want do get out put result like the first two line wise item are group ,similarly the 3rd and 4th and so on..
| S.No | Product Name | qty | Price |
| 1 | In door unit | 1 | 2100 |
| 2 | In door | 1 | 3000 |
| 3 | window indoor unit | 1 | 5000 |