Sql query--price

Question

Hi
I have two tables prod and price and i need a below output,plz help
prod table
NO NAME
1 bike
2 bullet
3 car
4 flight
price table
NO PRICE
1 100
2 200
300
600
output
NO NAME price
1 bike 100
2 bullet 200
3 car 300
4 flight 600

Answer 1

Hi,
Welcome to the forum!
Why do you want these results:
NO     NAME     PRICE
1      bike     100
2      bullet     200
3     car     300
4     flight     600rather than these:NO     NAME     PRICE
1      bike     100
2      bullet     200
3     car     600
4     flight     300or these
NO     NAME     PRICE
1      bike     100
2      bullet     200
3     car     600
4     flight     600? That is, what links 'car' to 300, and not to 600? Or would you be content with any of the results above?
That error message means what it says: you're using a scalar sub-query, which is supposed to return (at most) one value, but the sub-query is finding 2 rows. Whcih one do you want to use when that happens?
What results would you want of you added this row to your sample data?
INSERT INTO prod (no, name) VALUES (5, 'widget');? What results would you want with your original data ( without the row above), plus this row?
INSERT INTO price (no, price) VALUES (NULL, 700);Depending on your answers, you might want to use JOIN and GROUP BY rather than a scalar sub-query. (Actually, you may want to use a JOIN rather than a scalar sub-query anyway.)