A naming convention is a set of unwritten rules you should use if you want to increase the readability of the whole data model. Today, I’ll try to explain how you should formulate your naming convention and, maybe even more important, why should you do it and what is the overall benefit from using it.
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In this article, I am going to give a detailed explanation of how to use the SQL MERGE statement in SQL Server. The MERGE statement in SQL is a very popular clause that can handle inserts, updates, and deletes all in a single transaction without having to write separate logic for each of these. You can specify conditions on which you expect the MERGE statement to insert, update, or delete, etc.
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In this article, we will learn the concept of SQL tables and then work on how we can create tables with different techniques in SQL Server.
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In this article, I am going to walk you through the concepts of the common Data Structures that every student, colleague working with computers should be aware of. Data Structure forms an integral part of any system or database design. It is a very interesting and intuitive concept that you can apply anywhere. Through this article, I aim to introduce the beginners to the concepts of Data Structures and brush up the same for colleagues who have already been associated with the industry for years. This will also help you understand some database concepts more easily once you have a grasp over these concepts.
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In this article, we are going to build a small python application and deploy it to Azure Functions. The development and the deployment will be done using the Visual Studio (VS) Code. As you might be aware, VS Code is one of the most widely used and preferred code editors for programmers. It is a cross-platform tool, which means you can install this tool on any operating system of your choice, starting from Windows, Linux, or Mac OS.
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This article will get you familiar with the SQL UPDATE syntax and demonstrate how this statement can be used for modifying data using T-SQL. Data modification side of DML language in T-SQL includes three statements used for modifying data in SQL Server and those are: INSERT, UPDATE, and DELETE. The focus here will be on the UPDATE statement explicitly.
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In this article, I am going to explain how we can easily debug Python scripts using the Visual Studio (VS) Code. In my previous article on this topic, I have explained how to set up a development environment to start coding in Python. I would definitely recommend reading that article if you have not setup your Visual Studio Code environment yet. This article can be considered as a continuation of the above-mentioned steps as I am assuming that you are already into programming in Python using the VS Code.
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Deleting and updating data is very common, but if performed without taking care, which could lead to inconsistent data or data loss. Today, we’ll talk about SQL best practices when performing deletes and updates. We’re not talking about regular/expected changes, but rather about manual changes which will be required from time to time. So, let’s start.
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In this article, I am going to explain how to add users to a Power BI workspace using Power BI PowerShell. As you already know, Power BI is a business intelligence tool from Microsoft, using which we can build graphical reports and dashboards which bring some sense to our data that resides on the database. Power BI also has a web interface known as the Power BI service, which can be used to share and collaborate these reports and dashboards with multiple users within or out of the organization.
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In this article, we will introduce SQL queries hint and will analyze the OPTION(Fast ‘N’) hint in detail.
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In this article, I am going to explain how to set up your Visual Studio Code for Python Development. Visual Studio Code or, popularly known as VS Code, is one of the free and open-source code editors developed by Microsoft and is mostly preferred by developers of all the major programming languages due to its flexibility and other integrated development tools like debugging, IntelliSense, etc. Visual Studio Code is available to be downloaded for all the major operating systems like Windows, Linux, and macOS. You can visit https://visualstudio.microsoft.com/ to download it based on the OS you are using.
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In this article, we will briefly explain the SUBSTRING function and then focus on performance tips about it.
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In this article, we will ensure that the execution of the SQL Server procedure inside the function is possible. A common understanding of the database developer is that the procedure cannot be utilized or executed inside a user-defined function because the user-defined function does not allow performing DML operation with the table. The procedure is allowed to play with the database and its property, whether a user-defined function isn’t. That should be the essential reason behind allowing the execution of a SQL Server procedure inside the function.
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SQL Server cursors are one common topic on the Internet. You’ll find different opinions when to use them and when not to do it. Today, we’ll also talk about them and answer the question when (not) to use them.
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This article gives you an overview of Logon triggers in SQL Server and its usage to control SQL Server authentication.
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In this article, we will explore the process of rollback an explicit SQL Server transaction. We will also explore the difference between explicit and implicit transactions.
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Loops are one of the most basic, still very powerful concepts in programming – the same stands for SQL Server loops. Today, we’ll give a brief info on how they function and introduce more complex concepts in upcoming articles of this series.
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In this article, we will analyze a simple T-SQL query execution plan with different aspects. This will help us to improve our practical skills instead of discussing theoretical knowledge.
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In the real-world implementation of SQL Server of an enterprise system, it always needs to implement data in multiple databases. In most of the cases, a single transaction will span across multiple databases. If there are multiple databases, there will be performance issues and implementation issues during the cross-database transactions. However, with the use of SQL Service Broker that was introduced in SQL Server 2005, you can implement asynchronous transactions between databases.
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In this article, we will explore computed columns in SQL Server and their configurations.
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In the article, a CASE statement in SQL, we explored one of the important logical expressions – the Case statement in SQL Server to return the values based on the specified condition. Today, we will talk about another useful logical Choose() function in SQL Server 2012 onwards and its comparison with the Case statement.
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In this article, we’ll look at using the built-in PWDCOMPARE function in SQL Server for security testing passwords. While this tool may seem like it exposes a weakness in Microsoft SQL Server because we can test for passwords, it should be of note that an attacker could do the same attack by attempting to login to our database server assuming the attacker was able to access a connection to it. Therefore, this function does not increase the risk of an attack on SQL Server but does help us identify possible weaknesses in our environment so that we can quickly mitigate these risks. In addition, we’ll also combine this with other related tools in SQL Server to help us with logins.
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The T-SQL ORDER BY clause sorts SQL Server SELECT statement result sets, and it becomes important when we build stored procedures. Unfortunately, the syntax offers no flexible way to directly control the ORDER BY clause behavior with argument values. This means we don’t have an easy way to control the specific column or columns that the ORDER BY clause sorts. Additionally, SQL Server does not offer a flexible way to directly control the ascending or descending order of any ORDER BY clause column with argument values. Of course, we can certainly hard-code the ORDER BY clause in a stored procedure, but this approach becomes fixed in stone. We could try a dynamic SQL solution, involving a stored procedure code that dynamically builds and executes SQL Server statements inside a stored procedure. However, this technique becomes tricky, and it can lead to SQL injection attacks. Other techniques might rely on CASE statements, and their complexity can become overwhelming as the column count grows. This article spotlights a clean, efficient, pinpoint T-SQL stored procedure technique that directly sorts one, some, or all SELECT statement result set columns. The technique avoids dynamic SQL, and it operates directly in a stored procedure. The article also shows how to set the ascending or descending sort order of specific columns.
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In this article, I am going to demonstrate how to access the Power BI PowerShell commandlets. In the previous article in this series, we discussed how to programmatically access the Power BI Service using the REST APIs available. PowerShell is one of the most frequently used and preferred ways of automating monotonous manual jobs and scripting those. PowerShell comes integrated with Windows, so it can be easily used from any Windows machine.
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This article guides you through importing XML documents into SQL tables using SSIS packages.
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