So far, we haven’t talked about SQL Server date and time functions. Today we’ll change that. We’ll take a close look at the ones most frequently used and mention all other date and time functions as well. This will be also the first step to create reports, including date and time functions. We’ll do that […]
In this article, I’m going to talk in detail about the moving average in SQL and how to find out the same in Power BI and Excel. This might be a new topic for many newbies who have started out in this field, but I’m sure this will help anyone who is trying to work […]
In the previous two articles, we’ve practiced SQL queries and went through a few more examples. Today we’ll use SQL queries and create a report from scratch. We’ll start from the simplest possible query and finish with the query returning the actual report data.
Pagination is a process that is used to divide a large data into smaller discrete pages, and this process is also known as paging. Pagination is commonly used by web applications and can be seen on Google. When we search for something on Google, it shows the results on the separated page; this is the […]
This article explores the Merge Join Transformation in SSIS packages.
This article explains the deadlock definition in SQL Server, and it also mentions how to capture deadlocks with extended events.
Introduction In an earlier article, Solve Time Zone, GMT, and UTC problems using the T-SQL Toolbox database, I described T-SQL Toolbox, a free, open-source SQL Server database that handles time zone, date, and time calculations in a clean and efficient way. Available here at the CodePlex Archive, and here at GitLab, T-SQL Toolbox relies on […]
In this article, we will discuss why we need to use Azure Cosmos DB and how to configure it to store and query our data.
Table-Valued Parameters aka TVPs are commonly used to pass a table as a parameter into stored procedures or functions. They are helpful in a way, we can use a table as an input to these routines and we can get rid of dealing more complex steps to achieve this process.
Introduction In the article Web URL configuration in a Power BI Desktop report, we explored a different method to use Web URL in a Power BI report. Images help to improve the visual appearance of a report. You can convey messages easily using these images in a report.
In this article, I am going to explain how we can create a dynamic pivot table in SQL Server. Pivot tables are a piece of summarized information that is generated from a large underlying dataset. It is generally used to report on specific dimensions from the vast datasets. Essentially, the user can convert rows into […]
In this article, I’m going to explain the Dynamic Data Masking feature in SQL Server. As it goes by the name, Dynamic Data Masking is one of the security features that was introduced in SQL Server 2016. In an ever-growing digital era, the security of ones’ data has become one of the most important and […]
In the previous article we’ve practiced SQL, and today, we’ll continue with a few more SQL examples. The goal of this article is to start with a fairly simple query and move towards more complex queries. We’ll examine queries you could need at the job interview, but also some you would need in real-life situations. […]
In this article, I’m going to discuss Row-Level Security in SQL Server. RLS or Row-Level Security as the name suggests is a security mechanism that restricts the records from a SQL Server table based on the authorization context of the current user that is logged in. This means the records from the tables are displayed […]
In this article, we will discuss the SQL Server @@ROWCOUNT and ROWCOUNT system objects by going through practical examples that cover most of these system objects usage.
Today is the day for SQL practice #1. In this series, so far, we’ve covered most important SQL commands (CREATE DATABASE & CREATE TABLE, INSERT, SELECT) and some concepts (primary key, foreign key) and theory (stored procedures, user-defined functions, views). Now it’s time to discuss some interesting SQL queries.
In the article, Python scripts to format data in Microsoft Excel, we used Python scripts for creating an excel and do various data formatting. Python is an interesting high-level programming language. You can go through various use cases of Python on SQLShack.
This is the fourth article in a series of learning the CREATE VIEW SQL statement. So far, we have done a great deal of creating and altering views using T-SQL. In this last part, I want to take a big look at how to work with indexed views.
Introduction Soon enough, the applications and database software we build will handle date and time values. The T-SQL Toolbox database – a free download – can help solve complex calculations with those values.
Temporary tables, also known as temp tables, are widely used by the database administrators and developers. However, it may be necessary to drop the temp table before creating it. It is a common practice to check whether the temporary table exists or not exists. So, we can eliminate the “There is already an object named […]
SQL Triggers are another powerful database object we have at our disposal. In previous articles, we’ve covered user-defined functions, user-defined procedures, and SQL Views. Today we’ll talk about SQL triggers and how to use them to achieve the desired behavior.
SQL Server provides us with several aggregate functions that can be used to perform different types of calculations on a set of values, and return a single value that summarized the input data set. These SQL Server aggregate functions include AVG(), COUNT(), SUM(), MIN() and MAX().
This article explores the SQL Server TOP clause using various examples, along the way, we will also run through performance optimization while using the TOP clause in SQL Server.
In this article, we will talk about sp_WhoIsActive stored procedure and how we can use it to monitor currently running activities in SQL Server.
This article talks about Python scripts for creating pivot tables in multiple ways.
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