Conditional Aggregation: Querying by Column and Creating a New Table

Storing JSON Data in SQL Server 2014: A Comprehensive Guide

Identifying Unmatched Data Between Tables in SQL Server: 4 Powerful Approaches

Inserting Substrings into Each Row in PostgreSQL: A Step-by-Step Guide

Understanding How to Create an XML File Header with Record Count

Extracting the Year from a Date Field in SQL: Best Practices and Functions

Understanding the Issue with Join Conditions: A Step-by-Step Guide to Correcting SQL Joins

Querying with Group By: Daily and Month-to-Date Figures for CustID Using SQL

Displaying a Default Value in a Table When a SQL Query Returns No Results

Connecting SQL Server from Android Studio: A Step-by-Step Guide