Hello everyone

I'm struggling to find the right documentation to accomplish an update 
query which performs updates on many rows in one go. The equal SQL 
statement looks like this:

UPDATE order_lines AS ol
  SET ol.material_cost = val.material_cost 
FROM ( 
 VALUES (1, 150), (2, 320) 
) AS val(id, material_cost) 
WHERE ol.id = val.id;


I'm right now resorting to string interpolation and raw SQL to perform this 
query but I'd like to write things a little bit more elegant. I'd be very 
thankful for pointers to the right piece of documentation!


Best,

Emil

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