update_from_select.sql

-- it doesn't work, don't use it

UPDATE
    Table_A
SET
    Table_A.col1 = Table_B.col1,
    Table_A.col2 = Table_B.col2
FROM
    Some_Table AS Table_A
    INNER JOIN Other_Table AS Table_B
        ON Table_A.id = Table_B.id
WHERE
    Table_A.col3 = 'cool'

UPDATE 
    mrp_bom_by_product_line
SET workcenter_id = slave.workcenter_id
FROM 
    mrp_bom_by_product_line AS master
LEFT JOIN mrp_bom AS slave ON slave.id = master.bom_id
WHERE True
  AND master.workcenter_id IS NULL
  AND slave.workcenter_id > 0;

this SQL statement doesn't work,

i have run it on production enviroment and all data were covered with the same value!! 👎👎👎👎