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Intermediate SQL

4.7+
550 reviews
Beginner

Accompanied at every step with hands-on practice queries, this course teaches you everything you need to know to analyze data using your own SQL code today!

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4 Hours14 Videos50 Exercises
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Course Description

SQL is the most popular language for turning raw data stored in a database into actionable insights. Using a database of films made around the world, this course covers:

✓ How to filter and compare data
✓ How to use aggregate functions to summarize data
✓ How to sort and group your data
✓ How to present your data cleanly using tools such as rounding and aliasing

Accompanied at every step with hands-on practice queries, this course teaches you everything you need to know to analyze data using your own SQL code today!
  1. 1

    Selecting Data

    Free

    In this first chapter, you’ll learn how to query a films database and select the data needed to answer questions about the movies and actors. You'll also understand how SQL code is executed and formatted.

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    Querying a database
    50 xp
    Learning to COUNT()
    50 xp
    Practice with COUNT()
    100 xp
    SELECT DISTINCT
    100 xp
    Query execution
    50 xp
    Order of execution
    100 xp
    Debugging errors
    100 xp
    SQL style
    50 xp
    SQL best practices
    100 xp
    Formatting
    100 xp
    Non-standard fields
    50 xp
  2. 2

    Filtering Records

    Learn about how you can filter numerical and textual data with SQL. Filtering is an important use for this language. You’ll learn how to use new keywords and operators to help you narrow down your query to get results that meet your desired criteria and gain a better understanding of NULL values and how to handle them.

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  3. 3

    Aggregate Functions

    SQL allows you to zoom in and out to better understand an entire dataset, its subsets, and its individual records. You'll learn to summarize data using aggregate functions and perform basic arithmetic calculations inside queries to gain insights into what makes a successful film.

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  4. 4

    Sorting and Grouping

    This final chapter teaches you how to sort and group data. These skills will take your analyses to a new level by helping you uncover critical business insights and identify trends and performance. You'll get hands-on experience to determine which films performed the best and how movie durations and budgets changed over time.

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In the following tracks

Associate Data Analyst in SQLAssociate Data Engineer in SQLData Scientist in PythonData Scientist in RSQL Fundamentals

Collaborators

Collaborator's avatar
Amy Peterson
Collaborator's avatar
James Chapman
Collaborator's avatar
Izzy Weber

Prerequisites

Introduction to SQL
Jasmin Ludolf HeadshotJasmin Ludolf

Data Science Content Developer, DataCamp

Jasmin is a Content Developer at DataCamp. After ten years as a global marketing manager in the music industry, she recently changed careers to follow her curiosity for data. Her passion is value exchange and making data science accessible to all.
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Don’t just take our word for it

*4.7
from 550 reviews
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  • David L.
    about 1 month

    The format works just fantastically well for me. The videos are short and the exercises really help to understand better. AI feedback is also useful. I like the final exercise at the end of each chapter that combine all concepts.

  • Jeroen C.
    4 months

    Interesting

  • Maryanne N.
    4 months

    It was very informative

  • Samuel C.
    4 months

    I love datacamp but its a little bit expensive

  • Hugo H.
    4 months

    Kind of easy, but it flows, which is important

"The format works just fantastically well for me. The videos are short and the exercises really help to understand better. AI feedback is also useful. I like the final exercise at the end of each chapter that combine all concepts."

David L.

"Interesting"

Jeroen C.

"It was very informative"

Maryanne N.

FAQs

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