SQL

How to Check the Size of Each Table in a Database

In the intricate landscape of database management, understanding the size of each table is important for optimizing performance, managing storage efficiently, and making informed decisions about data storage. The size of tables directly influences the speed of queries, the allocation of resources, and the overall health of a database system. Whether you're a database administrator seeking to enhance performance or a developer fine-tuning applications, delving into the size metrics of your database tables is a fundamental step towards a wel…

Creating Pivot Tables in C# and SQL: A Comprehensive Guide

Pivot tables are a powerful tool for transforming and summarizing data in a way that makes it easy to understand and analyze. In both C# and SQL, it's possible to create pivot tables to summarize data and see relationships between data points. But which is the better option, C# or SQL? The answer depends on your specific needs and the type of data you are working with. Creating a Pivot Table in C# To create a pivot table in C#, you can use the LINQ library, which provides a concise and expressive syntax for querying and transforming data. …

Efficiently Removing Duplicate Rows in SQL: A Comprehensive Guide

Duplicate data can be a common issue in any database, and it's important to know how to effectively remove it. In this article, we will discuss different options for deleting duplicate rows in SQL. We will also provide SQL code examples to help you implement these solutions in your own database. Option 1: Using the GROUP BY clause and the HAVING COUNT() > 1 condition This is the most basic method for removing duplicate rows in SQL. The GROUP BY clause groups rows in the table by one or more columns, and the HAVING COUNT() > 1 conditi…

How to Search the Entire SQL Database for a Particular String

In this post, I'm sharing with you an SQL script that allows us to search  for a particular text or keyword in  all the SQL tables. The script will loop through all tables, all rows and columns and try to find the text we are searching for. SQL Script to Search the Whole Database This script can be used if we need to correct a typo or to replace a text but we don't know in which tables the text exists. Here is the SQL script  that will allow us  to search every table in SQL Database for a given string , you just need to replace the dat…

How to Calculate the Age Based on the Birthday Date in C# or SQL

We calculate our age by getting the difference in full years between the current date and our date of birth. This number indicates the age at which we are born. In this post, we will learn how to calculate the age of someone based on his birthday date. How to Calculate the Age Based on Birthday Date in C# int age = 0 ; int days = DateTime.Now.Subtract(birthdate).Days; age = days / 365 ; This will return the exact age as integer. You can use the following code if you just want the number of years withou…

Check if Point is inside a Polygon using SQL

Using the geospatial SQL functions you can check if a point (with a given X,Y) is included inside a polygon Example: Declare @point geometry Declare @polygon geometry SET @point = geometry::STGeomFromText( 'POINT (-88.22 41.50000001)' , 4326 ) SET @polygon = geometry::STGeomFromText( 'POLYGON ((-88.2 41.5, -88.2 41.6, -88.3 41.6, -88.3 41.5, -88.2 41.5))' , 4326 ) --124 Select @point.STIntersection(@polygon).ToString() This SQL code defines two geometry objects, @point and @polygon, and checks if they inte…

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