Here are the complex SQL queries that asked frequently in SQL interviews. You’re a learner or you want some queries for your practice, this is useful list.
How to say an SQL query is complex?
We write SQL queries to get output. However sometimes you need to pull data from multiple tables. Then the SQL query you can say as complex. Here is a list of complex SQL queries.
Complex SQL interview questions
Subscribe to get access
Read more of this content now. Access by paying $1
Related posts
-
How a PySpark Job Executes: Understanding Statements, Stages, and Tasks
When you write a few lines of PySpark code, Spark executes a complex distributed workflow behind the scenes. Many data engineers know how to write PySpark, but fewer truly understand how statements become stages, stages become tasks, and tasks run on partitions. This blog demystifies the internal execution model of Spark by connecting these four…
-
Azure Data Factory (ADF): The Complete Beginner-Friendly Guide (2026 Edition)
Azure Data Factory (ADF) is Microsoft’s fully managed, cloud-based data integration and orchestration service. It helps you collect data from different sources, transform it at scale, and load it into your preferred analytics or storage systems. Whether you are working with Azure SQL, on-premises databases, SaaS applications, or big-data systems, ADF gives you a unified…
-
Complete Terraform CI/CD Pipeline Setup with GitHub Actions — Beginner to Advanced
The complete terraform setup example ci cd pipeline to create AWS resources using GitHub actions







One response
[…] This can be done with a CASE expression or DECODE […]
LikeLike