SQL

When working with numbers in SQL Server, there are times when you need values to be rounded down to the nearest whole number. The FLOOR function comes in handy for this task.  It’s a tool within SQL Server that takes any number you give it and chops off the decimal part, always returning the largest…

Microsoft SQL Server is a powerful relational database management system (RDBMS) widely used for storing and managing data. If you’re using Windows 10 and need to determine whether SQL Server is installed on your system, there are several methods to verify its presence.  You can check directly from the library of installed programs through the…

Calculating correlation in SQL enables the assessment of relationships between variables within a dataset. Correlation measures the strength and direction of the linear relationship between two numeric columns in a table. By leveraging SQL functions and methods, such as mathematical calculations and aggregation, you can determine how changes in one variable correspond to changes in…

Introducing the utilization of the SQL “FLOOR” function, this guide aims to explore its practical application in manipulating numerical data within database queries. The “FLOOR” function plays a pivotal role in rounding down numeric values to the nearest integer or specified decimal place, offering a crucial tool for precise calculations and data analysis in SQL…

Azure Table Storage is categorized as a NoSQL data store, functioning primarily as a key-value repository. Azure Table Storage stands as a distinctive NoSQL solution within Azure’s ecosystem, offering unparalleled scalability and adaptability. Unlike traditional databases, it operates without a fixed schema, making it ideal for handling diverse data types. In this article, we’ll focus…

Sequence numbers provide a unique identifier for each row in a result set, allowing for easier data analysis and manipulation. There are a tons of methods by following which we can generate sequence number in SQL Select Query including using ROW_NUMBER() function, RANK() and DENSE_RANK() functions as well as using variables.  This content serves as…

Storing multiple pieces of data in a single column can be incredibly useful in SQL databases. This allows you to avoid creating excessive columns while still capturing all the necessary data.  In this comprehensive guide, we’ll explore several methods to insert multiple values in one SQL column. String Concatenation The simplest approach is to join…

Connecting Google Data Studio to SQL Server—a powerful integration for transforming raw data into interactive reports. This enhances data exploration, facilitates seamless collaboration, and promotes informed, data-driven decision-making across teams. This article will provide a comprehensive, step-by-step guide on how to connect Google Data Studio to SQL Server.  Prerequisites for Connection to SQL Server Before…

Ensuring data integrity and consistency is held important. However, data isn’t always stored in the most compatible formats, leading to the need for conversions. One common transformation is converting varchar data types to float in SQL databases.  To state simply, to convert a varchar column to float in SQL, you can use the CAST or…

DB2, a popular relational database management system, provides robust features for data integrity. But, there are instances where you may encounter an SQL error with the SQLCODE=-803.  This error typically indicates an integrity constraint violation, where a value being inserted or updated violates a constraint defined on the table. In this article, we will explore…