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SQL UPDATE SET one column to be equal to a value in a related table referenced by a different column? 9 answers
I have two tables...
table1 ( id, item, price ) values:
id | item | price-------------10 | book | 20 20 | copy | 30 30 | pen | 10
id | item | price
-------------
10 | book | 20
20 | copy | 30
30 | pen | 10
....table2 ( id, item, price) values:
id | item | price-------------10 | book | 2020 | book | 30
20 | book | 30
Now I want to:
update table1 set table1.Price = table2.price where table1.id = table2.id and table1.item = table2.item.
update table1
set table1.Price = table2.price
where table1.id = table2.id
and table1.item = table2.item.
How do I do it?
You can try the below code:
UPDATE table1 SET table1.Price = table2.price FROM table1 INNER JOIN table2 ON table1.id = table2.id
UPDATE table1
SET table1.Price = table2.price
FROM table1 INNER JOIN table2 ON table1.id = table2.id
Otherwise, you can try this:
UPDATE table1 SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);
SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);
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