Data Science & Analytics

9,113 learners

Advanced Query Techniques and Conditional Logic in SQL

This course is designed to help you deepen your SQL expertise, focusing on mastering subqueries, AND/OR logical operators, and conditional statements like LIKE, IN, and BETWEEN. Ideal for those with a basic understanding of SQL, looking to enhance their data querying capabilities.

MySQL

See path

4 lessons

21 practices

1 hour

Data Querying and Retrieval

Course details

Mastering Logical Operators: The Art of Data Filtering with AND/OR in SQL

Preview

Fixing SQL Queries with Logical Operators

Mastering Logical Operators in SQL Queries

Using OR Operator in SQL Queries

Fixing Logical Errors in SQL Queries

Filtering Songs Using Logical Operators

Previous Course

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I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

Advanced Query Techniques and Conditional Logic in SQL

Course details

Unit 15 practices19 min

Unit 26 practices22 min

Unit 35 practices19 min

Unit 45 practices19 min

Turn screen time into skills time

Join the 1M+ learners on CodeSignal

From our community

From our community