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27 Practical SQL Queries to solve Business Problems
Rating: 3.8 out of 5(28 ratings)
1,110 students

27 Practical SQL Queries to solve Business Problems

Hands-on beginner Practical SQL Queries
Created byBluelime Learning Solutions
Last updated 3/2026
English

What you'll learn

  • Build SQL Queries to get all records from a database table
  • Build SQL Queries to get records from selected columns
  • Build SQL Queries to perform table Joins to get data from multiple tables
  • Build SQL Queries using UNION Operator
  • Build SQL Queries that use Aggregate Functions
  • Build SQL Queries that will answer Business Questions
  • Build SQL Queries that includes GROUP BY
  • Build SQL Queries that includes ORDER BY
  • Build SQL Queries that uses Aliases
  • Build SQL Queries that includes SUB-Queries
  • Build Queries to performs Concatenation
  • Build Queries that uses Like operator and Wild Characters
  • Build Queries that uses various Operators

Course content

3 sections • 35 lectures • 3h 7m total length

  • Introduction3:51
  • Hardware and Software Requirements2:49
  • Download SQL Server 2014 Express Edition4:07
  • Install SQL Server6:47
  • Download Sample Northwind Database4:35
  • Attach Sample Northwind Database to SQL Server5:10

Requirements

  • You should be able to use a PC at beginner level
  • You should have a basic understanding of database concepts
  • You should have a basic working knowledge of SQL

Description

The best way to build up your skills in any area is by practice. This course is a hands-on practical learn by doing course.

SQL ( SQL -Structural Query language ) is one of  the most popular and sort after skills in the IT industry.  SQL Skills is so important especially with big data and data dependent businesses and applications from Facebook  to our local banks.

This course was designed with the beginner in mind.  The course starts by walking you through how to setup a lab where you will download and install Microsoft SQL Server and the sample Northwind database.

In this course we will solve 27 business related problem questions by building SQL queries to interrogate the database and produce the answers to solving the business problems.

We will  use the following while building our queries to solve the business problems :
Retrieve data with SELECT 
Use Aliases 
Use Case Expressions 
Eliminate duplicates
Filter data with equality filters 
Filter data with basic comparisons 
Filter data with string comparisons 
Filter data with logical comparisons 
Filter data with NULL comparisons 
Use order by clause
Sort data by ascending and descending order 
Use Table joins to extract data from multiple tables
Use UNION operator to combine results of two or more SELECT Statements 
Aggregate functions to compute a single output value
GROUP BY Clause to group related data

By the end of this course you will be would have gained enough skills to interrogate  Database.

Who this course is for:

  • Beginner SQL Dvelopers
  • Beginner Database Administrators -DBA
  • Beginner Data Analyst
  • Beginner Data Warehouse Professionals
  • Beginner Data Scientist

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