Calculating Total Time Spent at Specific Locations Within a Date Column for Tags with Multiple Consecutive Minutes.

Handling Duplicate Rows in SQL Queries: A Step-by-Step Guide

Selecting Records Based on Existence of Specific Values in a Table Using COALESCE, UNION ALL, and Subqueries With NOT EXISTS

How to Get First Record (Earliest VALIDFROM) and Last Record (Latest VALIDTO) for a Specific Staff ID in SQL

Inserting Values into a Column Based on Specific Conditions Using SQL and T-SQL

Securing Database Credentials with Variables: A Best Practice Guide for Creating Database Scoped Credentials Securely Using Variables for Username (Identity) and Password (Secret).

Understanding SQL Server's Extended Properties

Database Schema Design Considerations for Large Tables with Grouping and Ordering: A Step-by-Step Guide to Efficient Performance and Data Integrity

Optimizing SQL Queries with Spatial Data Type: A Scalable Approach to Handling Overlapping Time Periods

Calculating YTD Averages for Each Quarter in SQL: A Comprehensive Approach