Here are the top performed and most viewed blog posts in 2021. The topics are SQL, Python, VSAM and AWS.
How to Use Multiple Like Conditions in SQL
Here is an example on how to use multiple LIKE conditions in WHERE clause of SQL.
SQL where clause fetches records quickly when you give conditions correctly. The conditions should be indexed table columns. And, many a time, you need to filter records using like conditions.
SQL Query Examples on Multiple WHERE Conditions
Multiple conditions, how to give in the SQL WHERE Clause, I have covered in this post. Those are IN, LT, GT, =, AND, OR, and CASE. It takes more CPU time, If the WHERE condition is not proper, to fetch rows – since more rows.
15 Top AWS IAM Service Interview Questions
The identity and access management (IAM) service provide access for users (Entities). Below are the useful interview questions so that you can understand the IAM service quickly.
COBOL VSAM Files READ with START Logic
Here’s sample COBOL program that shows how to use READ, WRITE and READ NEXT statements. The READ statement is to get record randomly. The READ NEXT to read VSAM file till end of the file
12 Tricky Python Coding Interview Questions
Among the leading computer programming languages, Python takes the first place. In this post, I am sharing the 12 Python frequently asked Coding Interview Questions on the basics of Python Language.
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AWS Interview Q&A for Beginners (Must Watch!)
The content outlines essential AWS basics interview questions that every beginner should be familiar with. It serves as a resource for fresh candidates preparing for interviews in cloud computing. The link provided leads to additional multimedia content related to the topic.
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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…
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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…
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