I have a dataset where some of the rows is null and I have to put the value which is above
Input:
| Field1 |
| AXLSKDFI239848 |
| |
| ALSKC4839230 |
| |
| |
| SLKCIV3847390 |
| XLKDIEO384930 |
Output:
| Field1 |
| AXLSKDFI239848 |
| AXLSKDFI239848 |
| ALSKC4839230 |
| ALSKC4839230 |
| ALSKC4839230 |
| SLKCIV3847390 |
| XLKDIEO384930 |