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

try this -

SELECT Id,
       CASE
         WHEN Feemodeid IS NOT NULL THEN
          Feemodeid
         ELSE
          (SELECT Feemodeid
             FROM Table_Name t_2
            WHERE t_2.Id = (SELECT MAX(Id)
                              FROM Table_Name t_3
                             WHERE t_3.Id < t_1.Id
                               AND Feemodeid IS NOT NULL))
        END Feemodeid,
       CASE
         WHEN NAME IS NOT NULL THEN
          NAME
         ELSE
          (SELECT NAME
             FROM Table_Name t_2
            WHERE t_2.Id = (SELECT MAX(Id)
                              FROM Table_Name t_3
                             WHERE t_3.Id < t_1.Id
                               AND NAME IS NOT NULL))
       END NAME,
       Amount
  FROM Table_Name t_1