How to get Previous Value for Null Values

Question

I have the Below Data in my Table.

   | Id  |  FeeModeId   |Name        |   Amount|
   ---------------------------------------------
   | 1   |  NULL                 


        

Answer 1

SELECT
  T.ID,
  ISNULL(T.FeeModeId, 
    (SELECT TOP 1 FeeModeId 
        FROM TableName AS T1 
        WHERE ID < T.ID AND FeeModeId IS NOT NULL 
        ORDER BY ID DESC)) AS FeeModeId,
  ISNULL(Name,
    (SELECT TOP 1 Name 
    FROM TableName 
    WHERE ID < T.ID AND Name IS NOT NULL 
    ORDER BY ID DESC)) AS Name,
  T.Amount
FROM
  TableName AS T