Amazon Redshift tidak akan lagi mendukung pembuatan Python UDFs baru mulai Patch 198. Python yang ada UDFs akan terus berfungsi hingga 30 Juni 2026. Untuk informasi lebih lanjut, lihat [posting blog](https://aws.amazon.com/blogs/big-data/amazon-redshift-python-user-defined-functions-will-reach-end-of-support-after-june-30-2026/). Terjemahan disediakan oleh mesin penerjemah. Jika konten terjemahan yang diberikan bertentangan dengan versi bahasa Inggris aslinya, utamakan versi bahasa Inggris. # Contoh KECUALI kueri Tabel CATEGORY dalam database TICKIT berisi 11 baris berikut: ``` catid | catgroup | catname | catdesc -------+----------+-----------+-------------------------------------------- 1 | Sports | MLB | Major League Baseball 2 | Sports | NHL | National Hockey League 3 | Sports | NFL | National Football League 4 | Sports | NBA | National Basketball Association 5 | Sports | MLS | Major League Soccer 6 | Shows | Musicals | Musical theatre 7 | Shows | Plays | All non-musical theatre 8 | Shows | Opera | All opera and light opera 9 | Concerts | Pop | All rock and pop music concerts 10 | Concerts | Jazz | All jazz singers and bands 11 | Concerts | Classical | All symphony, concerto, and choir concerts (11 rows) ``` Asumsikan bahwa tabel CATEGORY\$1STAGE (tabel pementasan) berisi satu baris tambahan: ``` catid | catgroup | catname | catdesc -------+----------+-----------+-------------------------------------------- 1 | Sports | MLB | Major League Baseball 2 | Sports | NHL | National Hockey League 3 | Sports | NFL | National Football League 4 | Sports | NBA | National Basketball Association 5 | Sports | MLS | Major League Soccer 6 | Shows | Musicals | Musical theatre 7 | Shows | Plays | All non-musical theatre 8 | Shows | Opera | All opera and light opera 9 | Concerts | Pop | All rock and pop music concerts 10 | Concerts | Jazz | All jazz singers and bands 11 | Concerts | Classical | All symphony, concerto, and choir concerts 12 | Concerts | Comedy | All stand up comedy performances (12 rows) ``` Kembalikan perbedaan antara dua tabel. Dengan kata lain, kembalikan baris yang ada di tabel CATEGORY\$1STAGE tetapi tidak di tabel CATEGORY: ``` select * from category_stage except select * from category; catid | catgroup | catname | catdesc -------+----------+---------+---------------------------------- 12 | Concerts | Comedy | All stand up comedy performances (1 row) ``` Kueri setara berikut menggunakan sinonim MINUS. ``` select * from category_stage minus select * from category; catid | catgroup | catname | catdesc -------+----------+---------+---------------------------------- 12 | Concerts | Comedy | All stand up comedy performances (1 row) ``` Jika Anda membalikkan urutan ekspresi SELECT, kueri tidak mengembalikan baris.