Mana yang membakar lebih banyak kalori?

Anda tertarik menggali informasi tingkat tinggi tentang aktivitas olahraga. Nilai seperti total dan rata-rata kalori yang terbakar dapat memberikan wawasan bagi anggota gym yang ingin memaksimalkan latihan mereka. Untungnya, Anda memiliki alat untuk melakukannya!

Latihan ini merupakan bagian dari kursus

Tipe Data dan Fungsi di Snowflake

Instruksi latihan

Temukan jumlah total calories_burned untuk setiap workout_type.
Definisikan kolom baru yang menyimpan nilai rata-rata calories_burned untuk setiap workout_type.
Buat kolom yang menyimpan nilai rata-rata calories_burned, dibulatkan hingga dua angka desimal.
Agregasikan rekaman berdasarkan workout_type untuk memastikan tidak terjadi error.

Latihan interaktif langsung praktik

Cobalah latihan ini dengan melengkapi kode contoh ini.

SELECT
    workout_type,
    
    -- Find the total number of calories burned
    ___ AS total_calories_burned,
    
    -- Store the average calories burned
    ___ AS avg_calories_burned,
    
    -- Round the average calories burned to 2 decimal points
    ___(___, ___) AS rounded_avg_calories_burned
    
FROM CORE_GYM.visits

-- Aggregate records by workout_type
___;

Edit dan Jalankan Kode

Latihan ini merupakan bagian dari kursus

Tipe Data dan Fungsi di Snowflake

SkillTag.level.intermediateSkillTag.label

4.8+

Mulai Kursus Gratis

Before you can change the world using Snowflake, you need to know the type of data you'll be working with. You'll start with text data, learning to use it in queries and define columns, plus discover how to retrieve column details from any table. Then you'll master numeric data types and date/time data, understanding precision, scale, and how to convert strings to timestamps.

Exercise 1: Text data types Exercise 2: Is that text data?Exercise 3: Working out in the big city Exercise 4: Defining text data Exercise 5: Numeric data types Exercise 6: Go with the FLOAT Exercise 7: Creating a retail table Exercise 8: Datetime data types Exercise 9: Building datetime values Exercise 10: Which timezone?Exercise 11: When did you check in?

Now that you know your Snowflake data inside-and-out, it's time to manipulate and transform it. You'll begin with text data manipulation using TRIM, SPLIT, and CONCAT, then master numeric operations like arithmetic and summary measures with SUM and AVG. You'll explore timestamp transformations by extracting components like year or hours, calculating intervals between dates, and create your own custom Snowflake functions (UDFs) to implement personalized logic.

Exercise 1: Memanipulasi data teks Exercise 2: Mengelola panjang tampilan Exercise 3: Mengubah data teks Exercise 4: Memotivasi pemasaran anggota Exercise 5: Perhitungan numerik Exercise 6: Operator perbandingan Exercise 7: Menyesuaikan harga keanggotaan Exercise 8: Mana yang membakar lebih banyak kalori?

Latihan Saat Ini

Exercise 9: Memanipulasi data datetime Exercise 10: Memecah sebuah timestamp Exercise 11: Berapa lama Anda berada di gym?Exercise 12: Menjadwalkan janji Exercise 13: Fungsi yang ditentukan pengguna di Snowflake Exercise 14: Membuat fungsi Snowflake Anda sendiri Exercise 15: Memeringkat anggota gym berdasarkan efisiensi

In this final chapter, you'll crank the heat up with Snowflake's more advanced functionality. You'll start with VARIANT data types (semi-structured data), learning to parse top-level and nested data using dot-notation and bracket-notation, then master common table expressions (CTEs) by building and using multiple CTEs. Finally, you'll wrap up by creating pivoted tables using the PIVOT keyword to transform data into an easy-to-digest format, ready for reports and analysis.

Exercise 1: Flattening Semi-Structured Data Exercise 2: Retrieving nested data Exercise 3: Working with personal info Exercise 4: Building a gym member description Exercise 5: Multiple common table expressions Exercise 6: Identifying high-performers Exercise 7: Comparing senior workouts Exercise 8: Pivoting Data Exercise 9: Evaluating workout length Exercise 10: Is CrossFit a popular workout?Exercise 11: Which workouts burn the most calories?Exercise 12: Congratulations!