Kysely Delete

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Short and simple examples of how to write delete queries.

Single row

Schema

import { Generated } from 'kysely'

declare global {
  interface DB {
    person: PersonTable
    pet: PetTable
  }

  interface PersonTable {
    id: Generated<string>
    first_name: string
    last_name: string | null
    created_at: Generated<Date>
    age: number
  }

  interface PetTable {
    id: Generated<string>
    name: string
    owner_id: string
    species: 'cat' | 'dog'
    is_favorite: boolean
  }
}

Querying

const result = await db
  .deleteFrom('person')
  .where('person.id', '=', '1')
  .executeTakeFirst()

console.log(result.numDeletedRows)

Result

DELETE FROM "person"
WHERE
  "person"."id" = $1

-- Parameters
-- [1] 1

DELETE FROM `person`
WHERE
  `person`.`id` = ?

-- Parameters
-- [1] 1

DELETE FROM "person"
WHERE
  "person"."id" = ?

-- Parameters
-- [1] 1