sql run multiple updates in one query
UPDATE table_name
SET   field_name = 
      case  field_name2 
      when 'value' then 'change_to'
      when 'value2' then 'change_to2'
end
                                
                            sql run multiple updates in one query
UPDATE table_name
SET   field_name = 
      case  field_name2 
      when 'value' then 'change_to'
      when 'value2' then 'change_to2'
end
                                
                            update table sql multiple set
-- CANT do multiple sets but can do case
UPDATE table
SET ID = CASE WHEN ID = 2555 THEN 111111259 
              WHEN ID = 2724 THEN 111111261
              WHEN ID = 2021 THEN 111111263
              WHEN ID = 2017 THEN 111111264
         END
WHERE ID IN (2555,2724,2021,2017)
                                
                            sql update multiple tables
/*You can't update multiple tables in one statement,
however, you can use a transaction to make sure that
two UPDATE statements are treated atomically.
You can also batch them to avoid a round trip.*/
BEGIN TRANSACTION;
UPDATE Table1
  SET Table1.LastName = 'DR. XXXXXX' 
FROM Table1 T1, Table2 T2
WHERE T1.id = T2.id
and T1.id = '011008';
UPDATE Table2
SET Table2.WAprrs = 'start,stop'
FROM Table1 T1, Table2 T2
WHERE T1.id = T2.id
and T1.id = '011008';
COMMIT;
                                
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