Recently, I tried force a value into the identity column, SQL Server stoped me with the error Cannot insert explicit value for identity column in table when IDENTITY_INSERT is set to OFF. Cannot insert explicit value for identity column in table I was executing the following query. SQL After executing the query above, I got … 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 comprehensive article, I’ll walk you through multiple methods to truncate dates to the minute in SQL Server, explain when to use each approach. SQL Server Truncate Date to Minute Before diving into the methods, let me explain why truncating datetime values to the minute is so important. Common scenarios where minute-level truncation is … 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
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 alter a table to add a column at a specific position in SQL Server, why this happens, how to achieve your goal using the tools available, and the architectural implications of forcing specific column positions in a relational database. Alter table add … Read more
In this guide, I am going to walk you through the most effective methods to copy tables between databases. I will cover everything from the quick-and-dirty T-SQL commands to the robust GUI tools provided by Microsoft. By the end of this article, you will know exactly which method fits your specific scenario. SQL Server Copy … Read more
UDTTs are one of the most underutilized yet powerful features in the T-SQL. They allow you to pass entire tables of data into stored procedures and functions as a single parameter. In this comprehensive guide, I will take you through the architecture, benefits, and best practices of User Defined Table Types. We will move beyond … Read more
As a Database Architect who has spent years optimizing high-concurrency environments, I have seen one feature consistently change the game: SQL Server In-Memory OLTP. But here is the catch: In-Memory tables are not a magic switch you flip to make everything faster. They require a fundamental shift in how you think about data persistence, locking, … Read more
In this tutorial, I am going to walk you through exactly how to handle these changes with the precision of a seasoned DBA. Whether you are looking to modify a column’s data type using ALTER TABLE or move a table to a completely different security schema using ALTER SCHEMA, I will cover every angle. SQL … Read more