Category: database
If you host many wordpress blogs on the same server, then you can do this easily by the following PHP script. I have hosted 6 websites on the one …
Write a SQL query to delete all duplicate email entries in a table named Person, keeping only unique emails based on its smallest Id. +----+------------------+ | Id | Email …
The SQL coding exercise is from oj-online judge and you could submit your solution to this URL: https://oj.leetcode.com/problems/duplicate-emails/ Write a SQL query to find all duplicate emails in a …
The SQL Coding Exercise is from oj-leet Online Judge and you can submit your solution to this problem here: https://oj.leetcode.com/problems/employees-earning-more-than-their-managers/ The Employee table holds all employees including their managers. …
My first website steakovercooked.com started at 2006 (9 years ago). And at that time, I didn’t know much about the file encoding/charset and also, the UTF-8 was not so …