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CodeSignal

Getting Started with SQL

via CodeSignal

Overview

Dive into the fascinating world of SQL using data from an online shopping platform as your playground. This course will help you master SQL from the ground up, teaching you how to query databases effectively, uncover hidden patterns, and drive insightful data analysis.

Syllabus

  • Unit 1: Exploring Databases and Relational Data Structures
    • Running Your First SQL Queries
    • Selecting all Records from Categories Table
    • Displaying All Records from the Categories Table
    • Unveiling the Database's Tables
    • Exploring Database Tables with SQL
  • Unit 2: Navigating the SQL SELECT Statement
    • Selecting Specific Columns in SQL
    • Selecting Columns with Aliases in SQL
    • Fix the SQL Query
    • Renaming Columns with SQL
    • Navigating Advanced SQL Queries
  • Unit 3: Application of WHERE Clause
    • Select Orders After 2020
    • Selecting Specific Orders Using SQL
    • Filtering Shop Orders Effortlessly
    • Fixing an SQL Query to Filter by Year
    • Selecting Orders by Year
  • Unit 4: Mastering SELECT Statements with Logical Operators
    • Using the AND Operator in SQL Queries
    • Refining SQL Query with AND Operator
    • Using the IN Operator for Orders Selection
    • Using BETWEEN Operator to Filter Order Dates
    • Fetch Data with Logical Operators in SQL Queries
  • Unit 5: Understanding ORDER BY Clause for Sorting Data
    • Selecting All Products
    • Sorting Product Names Reverse Alphabetically
    • Sorting Orders by Date
    • Using ORDER BY with Conditional Filtering
    • Sorting Filtered Products by Price
    • Sorting Selected Category Products by Price

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