Finding Last Shared Date Among Representatives: Unpivoting and Scaling Up Approaches

How to Use SQL's SELECT Function with the LAST Function for Efficient Data Retrieval

How to Write an SQL Query to Exclude Records with Specific Conditions in a Table

How to Fill Information from Same and Other Tables in SQL Using INNER JOINs

Understanding Duplicate and Old Data Queries in SQL Using Correlated Subqueries

Finding the Shortest Path Between Non-City Stations and Cities Using MS Access, VBA, and Dijkstra's Algorithm

Selecting Records from Non-Unique Id Tables Using SQL Join Types and Subqueries

Access and SQL Grouping: Theoretical Background and Practical Applications

Understanding SQL WHERE Clauses with Newly Created Fields: Best Practices for Concatenating Strings

How to Use DELETE Statements in MS Access for Data Cleanup