Paul Spiegel questions

Paul Spiegel answers

• How to calculate different avg for the same record?
• MySQL 5.1 doesn't let me use declare in limits. I tried all the alternative methods and nothing worked and I cannot update MYSQL version
• How to get all users that the logged in user is not friends with in MySQL?
• How to return all duplicates rows in same columns in laravel 5.4?
• Best Practices to Build an Admin Approval System
• Mysql "ERROR 1292 (22007): Truncated incorrect time value: '2355:46:39.000000'" during insert
• mysql not using index on simple OR condition
• Calculating value differences between two records in Eloquent
• MySQL - How to normalize column containing delimiter-separated IDs
• How to implode these conditions to achieve this query structure?