Intermediate SQL
Level: Intermediate
Develop Intermediate SQL & Database Skills
Master SQL Joins & Work with Multiple Tables
Use CASE Statements, Filters & SQL Functions
Query, Update & Manipulate Data with Confidence
Welsh Government Funding Accepted
Course Overview
Duration:
1 Day (9:30am-4:00pm)
Accredited:
No
Exams:
N/A
Funding:
ReAct
Type:
Classroom, Onsite, Virtual
Company group booking discount available
Course Overview
Duration:
1 Day (9:30am-4:00pm)
Accredited:
No
Exams:
N/A
Funding:
ReAct
Type:
Classroom, Onsite, Virtual
Company group booking discount available
This Intermediate SQL course is designed for learners who already understand the fundamentals of SQL and want to develop their ability to query, analyse and manage relational databases more effectively. Building on introductory SQL knowledge, the course explores more advanced querying techniques used by database professionals, analysts and business users. Learners will gain the skills needed to retrieve, filter and manipulate data across multiple tables, helping them work more efficiently with larger and more complex datasets. Through practical exercises and real-world examples, delegates will learn how to create more powerful queries, use advanced filtering techniques, work with joins and apply conditional logic to solve business problems and generate meaningful insights from data.
Target Audience
- Database users looking to develop their SQL skills beyond the basics
- Data analysts working with relational databases
- Business intelligence and reporting professionals
- IT professionals responsible for querying and managing data
- Anyone wishing to improve their ability to retrieve and analyse data using SQL
By the End of This Course, You Will Be Able To:
- Apply advanced filtering techniques to retrieve specific datasets
- Use INNER, LEFT, RIGHT and FULL OUTER joins to combine data from multiple tables
- Create and use CASE statements to apply conditional logic within queries
- Work confidently with relational database structures and multiple related tables
- Write more efficient and effective SQL queries
- Analyse and manipulate data to support business reporting and decision-making
- Apply SQL best practices when working with relational databases
- Retrieve and present meaningful information from complex data sources
This Intermediate SQL course is designed for learners who already understand the fundamentals of SQL and want to develop their ability to query, analyse and manage relational databases more effectively. Building on introductory SQL knowledge, the course explores more advanced querying techniques used by database professionals, analysts and business users. Learners will gain the skills needed to retrieve, filter and manipulate data across multiple tables, helping them work more efficiently with larger and more complex datasets. Through practical exercises and real-world examples, delegates will learn how to create more powerful queries, use advanced filtering techniques, work with joins and apply conditional logic to solve business problems and generate meaningful insights from data.
Target Audience
- Database users looking to develop their SQL skills beyond the basics
- Data analysts working with relational databases
- Business intelligence and reporting professionals
- IT professionals responsible for querying and managing data
- Anyone wishing to improve their ability to retrieve and analyse data using SQL
By the End of This Course, You Will Be Able To:
- Apply advanced filtering techniques to retrieve specific datasets
- Use INNER, LEFT, RIGHT and FULL OUTER joins to combine data from multiple tables
- Create and use CASE statements to apply conditional logic within queries
- Work confidently with relational database structures and multiple related tables
- Write more efficient and effective SQL queries
- Analyse and manipulate data to support business reporting and decision-making
- Apply SQL best practices when working with relational databases
- Retrieve and present meaningful information from complex data sources
SQL Intermediate
- Additional Filters, finding specific information.
- Copying data to new tables and temporary tables
- Grouping information
- Connecting multiple tables with Joins
- Using the CASE statement to work with varying data values.
- Working with multiple tables – understanding and using SQL Joins
- Using SQL Aliases
- Working with SQL Functions to handle tasks including.
- Converting data
- Manipulating text
- Manipulating dates
- Introduction to Deleting and Updating data.
SQL Intermediate
- Additional Filters, finding specific information.
- Copying data to new tables and temporary tables
- Grouping information
- Connecting multiple tables with Joins
- Using the CASE statement to work with varying data values.
- Working with multiple tables – understanding and using SQL Joins
- Using SQL Aliases
- Working with SQL Functions to handle tasks including.
- Converting data
- Manipulating text
- Manipulating dates
- Introduction to Deleting and Updating data.
There is no formal examination or assessment associated with this course. Instead, learners will develop and demonstrate their understanding through a series of practical exercises, hands-on activities and real-world database scenarios completed throughout the training day. These activities are designed to reinforce learning and help delegates apply intermediate SQL techniques, including advanced filtering, joins, CASE statements and querying multiple related tables. By working through practical examples and business-focused exercises, learners will gain the confidence to write more effective SQL queries and retrieve meaningful information from relational databases. For learners seeking accredited database or data analysis qualifications, please contact us to discuss the training and certification options available.
There is no formal examination or assessment associated with this course. Instead, learners will develop and demonstrate their understanding through a series of practical exercises, hands-on activities and real-world database scenarios completed throughout the training day. These activities are designed to reinforce learning and help delegates apply intermediate SQL techniques, including advanced filtering, joins, CASE statements and querying multiple related tables. By working through practical examples and business-focused exercises, learners will gain the confidence to write more effective SQL queries and retrieve meaningful information from relational databases. For learners seeking accredited database or data analysis qualifications, please contact us to discuss the training and certification options available.
- One day of instructor-led training delivered by NILC’s accredited SQL trainer
- Course recording provided after the training day (available on request for virtual live delivery only)
- NILC course completion certificate
- One day of instructor-led training delivered by NILC’s accredited SQL trainer
- Course recording provided after the training day (available on request for virtual live delivery only)
- NILC course completion certificate
Learners should have a basic understanding of SQL and be comfortable writing simple SELECT statements, filtering data and retrieving information from database tables. Previous experience working with relational databases or completion of an introductory SQL course is recommended.
Learners should have a basic understanding of SQL and be comfortable writing simple SELECT statements, filtering data and retrieving information from database tables. Previous experience working with relational databases or completion of an introductory SQL course is recommended.
Who is the Intermediate SQL course suitable for?
The course is designed for learners who already understand the fundamentals of SQL and want to develop their ability to work with more complex queries and relational databases. It is particularly suitable for data analysts, reporting professionals, database users, business intelligence professionals and IT professionals.
What SQL experience should I have before attending?
You should have a basic understanding of SQL and be comfortable writing simple SELECT statements, filtering data and retrieving information from database tables. Previous experience working with relational databases or completion of an introductory SQL course is recommended.
Is this course suitable for complete beginners?
No. This is an Intermediate-level course and assumes you already understand basic SQL concepts. If you have never used SQL before, we recommend completing introductory SQL training before progressing to this course.
Who is the Intermediate SQL course suitable for?
The course is designed for learners who already understand the fundamentals of SQL and want to develop their ability to work with more complex queries and relational databases. It is particularly suitable for data analysts, reporting professionals, database users, business intelligence professionals and IT professionals.
What SQL experience should I have before attending?
You should have a basic understanding of SQL and be comfortable writing simple SELECT statements, filtering data and retrieving information from database tables. Previous experience working with relational databases or completion of an introductory SQL course is recommended.
Is this course suitable for complete beginners?
No. This is an Intermediate-level course and assumes you already understand basic SQL concepts. If you have never used SQL before, we recommend completing introductory SQL training before progressing to this course.
Dates & Prices
Upcoming Courses
Live Instructor-Led Virtual
Spaces: Available
Start Date: Fri 02 October 2026
Live Instructor-Led Virtual
Spaces: Available
Start Date: Fri 30 October 2026
Live Instructor-Led Virtual
Spaces: Available
Start Date: Fri 27 November 2026
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How we deliver our courses
Virtual
Our virtual courses allow you to access live instructor-led training from the same expert instructors that deliver our classroom courses, without leaving the comfort of your home or office. All virtual courses are fully interactive, and learners can communicate with their trainer and peers at any time.
Many of our virtual courses are also recorded, so you can recap over the content you learnt as many time as you wish.
Classroom
Our classroom courses allow you to learn and interact face-to-face with our expert instructors in a comfortable and modern training environment. All of our classroom based courses take place at NILC centers, or high quality training facilities, and include all required IT and physical equipment.
We also limit our class sizes to help promote better discussions and to ensure your learning experience is comfortable as possible.
Onsite
Save time and hassle by arranging for one of our expert instructors to come to you. Our onsite courses allow you to learn in a location of your choosing, and you can train as many or as few people as you want – from a single person or team to whole departments. We can also fully customize the course content to the specific requirements of your business or project.
We offer onsite courses throughout the UK and it can be a great team building opportunity for colleagues to come together, bond and discuss.
Online
Our Online Self Paced courses allow you to learn new skills from our expert instructors, in your own time and at your own pace. Our flexible online learning platform allows you to access content on your computer, tablet or mobile device, whether you’re on the move or at home. All our online courses come with immediate access and you can start learning straight away, from any internet enabled compatible device.
We also offer online email support from our expert instructors, so they’re always on hand and happy to help you with any questions which may arise.
Why choose NILC for your training?
Award-Winning Training with Industry-Leading Customer Satisfaction
Trusted Training Partner by Colleges, Government Organisations and Businesses
UK-Based Trainers with Real-World Industry Experience
Family-Run Business with Customer Service at Its Core
Rated Excellent on Trustpilot with 950+ Customer Reviews
Our learners rate us 'Excellent' on Trustpilot
Frequently Asked Questions
The course is designed for learners who already understand the fundamentals of SQL and want to develop their ability to work with more complex queries and relational databases. It is particularly suitable for data analysts, reporting professionals, database users, business intelligence professionals and IT professionals.
You should have a basic understanding of SQL and be comfortable writing simple SELECT statements, filtering data and retrieving information from database tables. Previous experience working with relational databases or completion of an introductory SQL course is recommended.
No. This is an Intermediate-level course and assumes you already understand basic SQL concepts. If you have never used SQL before, we recommend completing introductory SQL training before progressing to this course.
You will learn more advanced techniques for retrieving, filtering and manipulating data. This includes working with multiple tables, SQL joins, aliases, grouping data, CASE statements, SQL functions, temporary tables and an introduction to updating and deleting data.
Yes. Working with multiple related tables is a key part of the course. You will learn how to use INNER, LEFT, RIGHT and FULL OUTER joins to retrieve and combine information from different tables.
Yes. You will learn how to use CASE statements to introduce conditional logic into your SQL queries. This allows you to return different results depending on the values or conditions within your data.
Yes. The course covers SQL functions for common data manipulation tasks, including converting data and working with text and date values.
Yes. The course provides an introduction to updating and deleting data within a database, helping you develop skills beyond simply retrieving information with SELECT queries
Yes. The course has a strong practical focus, with hands-on exercises and real-world database scenarios throughout the training day. You will practise techniques including advanced filtering, joins, CASE statements and querying multiple related tables.
No. There is no formal examination. Your knowledge will instead be reinforced through practical exercises and hands-on activities during the course. You will receive an NILC course completion certificate after attending.
Frequently Asked Questions
The course is designed for learners who already understand the fundamentals of SQL and want to develop their ability to work with more complex queries and relational databases. It is particularly suitable for data analysts, reporting professionals, database users, business intelligence professionals and IT professionals.
You should have a basic understanding of SQL and be comfortable writing simple SELECT statements, filtering data and retrieving information from database tables. Previous experience working with relational databases or completion of an introductory SQL course is recommended.
No. This is an Intermediate-level course and assumes you already understand basic SQL concepts. If you have never used SQL before, we recommend completing introductory SQL training before progressing to this course.
You will learn more advanced techniques for retrieving, filtering and manipulating data. This includes working with multiple tables, SQL joins, aliases, grouping data, CASE statements, SQL functions, temporary tables and an introduction to updating and deleting data.
Yes. Working with multiple related tables is a key part of the course. You will learn how to use INNER, LEFT, RIGHT and FULL OUTER joins to retrieve and combine information from different tables.
Yes. You will learn how to use CASE statements to introduce conditional logic into your SQL queries. This allows you to return different results depending on the values or conditions within your data.
Yes. The course covers SQL functions for common data manipulation tasks, including converting data and working with text and date values.
Yes. The course provides an introduction to updating and deleting data within a database, helping you develop skills beyond simply retrieving information with SELECT queries
Yes. The course has a strong practical focus, with hands-on exercises and real-world database scenarios throughout the training day. You will practise techniques including advanced filtering, joins, CASE statements and querying multiple related tables.
No. There is no formal examination. Your knowledge will instead be reinforced through practical exercises and hands-on activities during the course. You will receive an NILC course completion certificate after attending.
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