SQL update from one Table to another based on a Column

Question

I have two tables called ata and sku and i want to match SKU from ata table and ARTIKEL_NUMBER from sku table to fit weight from ATA (TOTAL_WEIGHT_PIECE) on sku column called Greutate_kg.

(ATA TABLE) (SKU TABLE)

Answer 1

You can try next:

UPDATE sku
JOIN ata ON ata.ARTIKEL_NUMBER = sku.SKU
SET sku.Greutate_kg = ata. TOTAL_WEIGHT_PIECE
WHERE sku.Greutate_kg IS NULL;