SQL

sql update multiple rows

UPDATE table_name SET column1=value1, column2=value2 WHERE condition

sql update multiple columns from another table

-- Oracle
UPDATE table2 t2 SET (VALUE1, VALUE2) = 
    (SELECT COL1 AS VALUE1, COL1 AS VALUE2 FROM table1 t1 WHERE t1.ID = t2.ID);
-- SQL Server
UPDATE table2 t2 SET
    t2.VALUE1 = t1.COL1,
    t2.VALUE2 = t1.COL2
FROM table1 t1
INNER JOIN t2 ON t1.ID = t2.ID;
-- MySQL
UPDATE table2 t2 INNER JOIN table1 t1 USING (ID)
SET T2.VALUE1 = t1.COL1, t2.VALUE2 = t1.COL2;

sql server update multiple columns at once

UPDATE Person.Person
 Set FirstName = 'Kenneth'
    ,LastName =  'Smith'
 WHERE BusinessEntityID = 1

update multiple columns in sql

UPDATE table-name SET column-name = value, column-name = value WHERE condition = value

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;

sql server alter multiple columns

ALTER TABLE tblcommodityOHLC alter column CC_CommodityContractID NUMERIC(18,0);
ALTER TABLE tblcommodityOHLC alter column CM_CommodityID NUMERIC(18,0);