Multiple SQL Update Statements in single query

Question

I am in a situation where I am having to update about 12,000 items in my DB. Each row needs to mirror an excel file that I made previously. I have made the file that creates

Answer 1

Take a look at MERGE e.g. something like:

MERGE INTO [STORESQL].[dbo].[RPT_ITM_D] 
   USING (
          VALUES ('1.29', '0000000000001'),
                 ('1.39', '0000000000002')
         ) AS source (F1301, F01)
   ON F01 = source.F01
WHEN MATCHED THEN
   UPDATE
      SET F1301 = source.F1301;

...but using a table value constructor in this way would not scale to 12,000 rows! So look to first copying the data from Excel to a table on the server, then use the table as the source e.g.

MERGE INTO [STORESQL].[dbo].[RPT_ITM_D] 
   USING [STORESQL].[dbo].MyStagingTable AS source
      ON F01 = source.F01
WHEN MATCHED THEN
   UPDATE
      SET F1301 = source.F1301;