Bijay Kumar Sahoo
The difference between a single hash (#) and a double hash (##), or the choice to use a table variable (@), isn’t just syntax—it’s a fundamental decision about data visibility and lifespan. In this article, I’m going to break down the scope of SQL Server temporary objects so you never have to guess whether your … Read more
In this article, I’m going to walk you through everything you need to know about the SQL Server table name length limit. We will cover the standard limits, the “hidden” limits for temporary tables that often catch developers off guard, and the best practices recommended for keeping your schema manageable. SQL Server Table Name Length … Read more
In this article, I will walk you through the exact methods I use to verify CDC status on a table in SQL Server. I’ll cover everything from simple T-SQL queries to checking system stored procedures, ensuring you have the full picture. How to Check If CDC Is Enabled on a Table in SQL Server Prerequisites … Read more
In this article, I am going to walk you through exactly how to “back up” a table, ensuring you have a safety net before anyone touches your production data. Table Backup in SQL Server Understanding the Architecture Before we dive into the “How-To,” we need to establish the “Why.” Why doesn’t Microsoft provide a simple … Read more
If you are looking to master how to SQL Server import data from CSV into an existing table, you are in the right place. In this article, I will walk you through the most robust, efficient, and professional methods to get that data where it belongs: inside your database. I’ll cover everything from the visual … Read more
Recently, I was working on the script to import our sales data into one of my existing tables from a CSV file. Immediately after executing the script I got the error “Cannot obtain the required interface (“IID_IColumnsInfo”) from OLE DB provider “BULK” for linked server “(null)”.” Cannot Obtain The Required Interface I was trying to … Read more
In this deep-dive tutorial, I will walk you through everything you need to know about the TRUNCATE TABLE statement in SQL Server. We will cover how it works under the hood, how it differs from DELETE, and the specific permissions and limitations you need to be aware of to manage your data infrastructure effectively. Truncate … Read more
This tutorial guides you through the complete process of adding a primary key to an existing table using T-SQL and SQL Server Management Studio (SSMS), tailored for a professional development environment. SQL Server Add Primary Key To Existing Table Whether you inherited a “heap” (a table without a clustered index) or simply forgot to define … Read more
In this article, I am going to walk you through exactly how to combine two (or more) columns in SQL. I will cover the modern functions, the legacy operators, and the dreaded “NULL trap” that ruins so many reports. How to Combine Two Columns in SQL Why Is Combining Columns So Complicated? Before we look … Read more
In this article, I am going to walk you through exactly how to write a SQL query to get column names from a table in SQL Server. I will cover the standard ANSI methods, the SQL Server-specific system views, and the quick shortcuts I use daily. SQL Query to Get Column Names from Table in … Read more