One very useful thing you might need while working on your app is joining 2 tables.
For example you have a products
table and a orders
table and orders has the id
of a product ordered in product_id
, but the product name
is in the products table.
And you want to get the name of a product that’s been ordered.
You can use the .innerJoin()
method of Kysely to join the orders
table with products
, joining on products.id
and orders.product_id
:
await db
.selectFrom('orders')
.innerJoin(
'products',
'products.id',
'orders.product_id'
)
.select('products.name')
.execute()
Lessons in this unit:
0: | Introduction |
1: | Installing Kysely |
2: | Select queries |
3: | Inserting data |
4: | Deleting data |
5: | Updating data |
6: | ▶︎ Joins |
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