| Valid From | Valid To | Parent | 0CALDAY | Child |
| 21.02.2009 | 31.12.9999 | V4C7IAL | 21.02.2009 | LC001809-4 |
| 21.02.2009 | 31.12.9999 | V4C7IAL | 21.02.2009 | LC001809-3 |
| 21.02.2009 | 31.12.9999 | V4C7IAL | 21.02.2009 | LC001809-2 |
| 21.02.2009 | 31.12.9999 | V4C7IAL | 21.02.2009 | LC001809-1 |
The above data At dso level data but we need to calculate parent how many childs measns : parent value same : childs are differernt that count is 4 .
Please guide me how to calculate data.
