Question

Ingredient id: 1, name: cayenne pepper id: 2, name: pasta noodle id: 3, name: fresh tomato id: 4, name: sugar recipe id: 1, name: lasagna id: 2, name: chocolate chip cookies given the above data for a recipe database. How many records would be included in the result set for the following query?

SELECT * FROM recipe CROSS JOIN ingredient;
A) 8
B) 6
C) 4
D) 2

Answer 1

The CROSS JOIN between the recipe and ingredient tables with 2 and 4 records respectively would produce 8 records in total.

Step-by-step explanation:

The query SELECT * FROM recipe CROSS JOIN ingredient; performs a cross join between the 'recipe' table and the 'ingredient' table. A cross join returns a result set that combines every row from the first table with every row from the second table. In this case, there are 2 records in the 'recipe' table and 4 records in the 'ingredient' table. So, the result set will have a total of 2 x 4 = 8 records. Therefore, the correct answer is A) 8.

The student has asked about the number of records resulting from a CROSS JOIN between the recipe and ingredient tables in a database. This type of join combines each row from the first table with every row from the second table, producing a Cartesian product of the two tables. Given that there are 2 records in the recipe table and 4 records in the ingredient table, a CROSS JOIN between them would result in 2 x 4 = 8 records.