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I recently completed a series of interviews for engineering roles, and one key theme stood out: SQL and PostgreSQL aren’t just about writing queries — they’re about knowing how data systems work under pressure. On my main blog, I broke down: The exa...
In today's data-driven world, speed and performance are crucial for staying ahead. SQL Server's In-Memory OLTP (Hekaton) is a great feature that helps businesses meet the needs of high-performance, low-latency applications. Whether you're working on ...
This post demonstrates the integration of external Rest APIs with Azure SQL Database and Azure API Management Service. By utilizing the system-stored procedure sp_invoke_external_rest_endpoint, you can make REST calls to endpoints such as Azure Funct...
System-Versioned Temporal Tables, also known as History Tables are a built-in feature that keeps track of data changes in SQL Server. Unlike regular tables that only show the current data state, these tables help in seamlessly capturing and preservin...
This post is to understand and demonstrate TRY CATCH in SQL Server, we will also see, how to trigger and handle custom exceptions with example.
Intro Database Normalization is a concept & design technique we follow to efficiently organize data and design proper schema, to avoid redundant & data duplication in multiple tables. It also sets up relations between the tables, to ensure data depen...
Recently I had a requirement, wherein I had to import the data from one of the internal applications to the SQL Server for further processing. We had REST-API open at a particular endpoint so any other service can consume the API and fetch data for i...
PIVOT and UNPIVOT are relational operators for converting table expressions into one another. If we want to turn the unique row values of a column into multiple columns we use the PIVOT operator. And when we want to converge multiple columns to colum...
SQL Server provides three mechanisms to track data changes in the table objects. This mechanism is also a useful solution for implementing the audit and logging process for the SQL Server Instance. The mechanisms are Change Tracking also known as CT,...