Answers for "sql set values"

sql update from select

UPDATE YourTable 
SET Col1 = OtherTable.Col1, 
    Col2 = OtherTable.Col2 
FROM (
    SELECT ID, Col1, Col2 
    FROM other_table) AS OtherTable
WHERE 
    OtherTable.ID = YourTable.ID

sql set

Used alongside UPDATE to update existing data in a table.
Example: Updates the value and quantity values for an order with an id of
642 in the orders table.
UPDATE orders
SET value = 19.49, quantity = 2
WHERE id = 642;