我有一张table:-+----------+--------------+-------------------+-----------+|IsActive|IsFirstChunk|TotalResponseTime|StallTime|+----------+--------------+-------------------+-----------+|Yes|Yes|62|NULL||NULL|NULL|327|0||NULL|NULL|59|0|我只想为列IsActive和IsFirstChunk标记为Yes的行用TotalResponseTime的值填充StallTime列