कोशिश करें IsNull
select ISNULL(Column,'') as ColumnName
या COALESCE
select COALESCE(NULLIF(ColumnName,''), 'Column')
कोशिश करें IsNull
select ISNULL(Column,'') as ColumnName
या COALESCE
select COALESCE(NULLIF(ColumnName,''), 'Column')