Lab Sql

In my SQL query I am selecting data with GROUP BY and ORDER BY clauses. The table has the same numb… Read more Mysql - Using Group By And Desc

If I have an SQL query like this one: SELECT playerno,town FROM players GROUP BY town In this case… Read more Which Record Will Group By Choose In Sql

I'm reading a book on SQL (Sams Teach Yourself SQL in 10 Minutes) and its quite good despite it… Read more Why Does Mysql Allow You To Group By Columns That Are Not Selected

I have some data that contains dates. I'm trying to group the data by consecutive dates, howeve… Read more Group Records By Consecutive Dates When Dates Are Not Exactly Consecutive

I'm trying to figure out without disabling 'only_full_group_by' in my.ini here is my qu… Read more Mysql 5.7 Order By Clause Is Not In Group By Clause And Contains Nonaggregated Column

Below is my database table. id name type 1 a 1 2 a 1 3 a … Read more How To Write The Sql Query To Select And Group By Type And Count Per Type?

I have the following table recordID createdDate ForeignKeyID … Read more How Do I Get The Record Id Of The Record With The Min Date For Each Foreign Key?

excuse my english but nobody can answer in French ;-) I'm doing this request : SELECT AVG(tyd.… Read more Sql, Get The Average On A Group While Escaping The Where Condition