Slide 465
Slide 465 text
3BJMTΒ͍͠ίʔυΛॻ͘
w ෳࡶͳ͜ͱ͠ͳ͍
w ෳࡶͳॲཧΛ͠ͳ͍ͱ͍͏͜ͱͰͳ͍
w Ϩʔϧ͔Β֎Εͳ͍
w "DUJWF3FDPSEͰ42-Λॻ͔ͳ͍
# SQLͰߟ͑ͯॻ͘ͱ
User.find_by_sql(‘SELECT * FROM users WHERE user_id
IN (1, 2, 3, ...) AND ...’)
# ϞσϧΛҙࣝͯ͠ॻ͘ͱ
User.where(id: [1, 2,..]).where(‘age >
30’).where(...)
137݄7༵