このレッスンは、現在英語のみです。
From numbers to names
posts stores user_id 3, but your feed shows "leila". A join combines rows from two tables wherever a condition matches, and it is the most important tool in a relational database.
このレッスンは、現在英語のみです。
posts stores user_id 3, but your feed shows "leila". A join combines rows from two tables wherever a condition matches, and it is the most important tool in a relational database.