SQL Server 2008: update query

Question

I have TableA with FKColumnID

I also have TableB with ColumnID and ColumnName

How can I update TableA.FKColumnID to have the same value as tableB.ColumnName ?

Update TableA
Set TableA.ColumnName = TableB.ColumnName

Answer 1

You can try this

UPDATE TableA
SET ColumnName = TableB.ColumnName
FROM TableA
JOIN TableB on TableA.FKColumnID = TableB.ColumnID
WHERE < any additional criteria >