C#

San'atchilar va ularning eng erta albomlarini <San'atchi nomi> <Birinchi albom nomi> <Birinchi albom chiqarilgan sana> formatida qaytaradigan so'rov yozilishi kerak. create table Artists ( id serial primary key, name varchar(255) not null ); create table Albums ( id serial primary key, artistId int not null references Artists(id), name varchar(255) not null, release_date timestamp not null ); insert into Artists(name) values ('2Pac'), ('Wu-Tang Clan'), ('Eminem'); insert into Albums(name, artist_id, release_date) values ('The Slim Shady LP', 3, '[phone]'), ('Me Against The World', 1, '[phone]'), ('The Eminem Show', 3, '[phone]'), ('Enter The Wu-Tang Clan', 2, '[phone]'), ('Recovery', 3, '[phone]'), ('The W', 2, '[phone]'), ('2Pacalypse Now', 1, '[phone]'); select a.name, al.name, al.release_date from Artists as a join Albums as al on a.Id = al.artistId where al.release_date = ( select min(release_date) from Albums where artist_id = a.id ); with cte as ( select artist_id, min(release_date) as first_album_date from albums group by artist_id ) select a.Id, a.Name, fa.first_album_date from Artists a join cte as fa on a.Id = fa.artist_id;

Middle

OZON

211

Dasturlash tilida ikki tuzilmani taqqoslashda avtomatik tur o'zgarishi amalga oshadimi?

Junior — Middle

OZON

209

Hozirgi ish joyingizni o'zgartirishni o'ylashga nima turtki bo'ldi?

Junior — Middle

OZON

208

So'nggi ish joyingizdagi ish tajribangiz haqida gapiring