Removing Duplicate Values from Different Columns in SQL: A Comprehensive Approach

Masking Data in Stored Procedures: A Step-by-Step Guide for SQL Server Users

Here is a complete answer based on the provided specification:

Using Common Table Expressions (CTEs) to Simplify Complex SQL Queries: Best Practices and Use Cases

SQL Alternatives to SUMIF: A Comprehensive Guide

Understanding Wildcard Characters in SQL Server: A Guide to Resolving Email Address Issues with LIKE Statements

Inserting Rows Not Contained in One Table to Another Using Left Joins

Calculating SumTotal Duration in SQL: A Deep Dive

Best Practices for Creating T-SQL Triggers That Audit Column Changes

Conditional Aggregation for Distinct Values in SQL: A Practical Guide to Separating Login and Logout Events