Joining Tables Using Primary and Foreign Keys
Subject: Joining Tables Using Primary and Foreign Keys
In the context of the "Product" and "Pre-Release" tables, the key challenge lies in linking these tables through their primary and foreign keys. The foreign key acts as a bridge, connecting common fields in two distinct tables, whereas the primary key is unique to each table.
A viable solution involves employing an
"Inner Join" operation utilizing the "Primary Key" of the "Product" table and the corresponding "Foreign Key" in the "Pre-Release" table. Here's an example SQL query demonstrating this approach:
```sql
SELECT *
FROM Product AS p
INNER JOIN PreRelease AS prel
ON p.product_id = prel.product_id
ORDER BY p.product_id;
```
In this query, "p" and "prel" serve as aliases for the "Product" and "Pre-Release" tables, respectively. The `INNER JOIN` statement connects the tables by matching the "product_id" from the "Product" table with the corresponding "product_id" in the "Pre-Release" table. The result is a merged dataset containing relevant information from both tables. Finally, the `ORDER BY` clause organizes the results based on the "product_id" for better clarity.
Feel free to reach out if you have further questions or need additional assistance!


