sql-order-by Archives

What is the purpose of Order By 1 in SQL select statement?

I’m reading through some old code at work, and have noticed that there are several views with an order by 1 clause. What … Read more

Why does MYSQL higher LIMIT offset slow the query down?

by IT Nursery

Scenario in short: A table with more than 16 million records [2GB in size]. The higher LIMIT offset with SELECT, the slower the … Read more

ORDER BY the IN value list

by IT Nursery

I have a simple SQL query in PostgreSQL 8.3 that grabs a bunch of comments. I provide a sorted list of values to … Read more

how to customize `show processlist` in mysql?

by IT Nursery

I want to order by Time,but seems no way to do that ? mysql> show processlist; +——–+————-+——————–+——+———+——–+———————————-+——————————————————————————————————+ | Id | User | Host … Read more

How to order by with union in SQL?

by IT Nursery

Is it possible to order when the data is come from many select and union it together? Such as Select id,name,age From Student … Read more

Laravel Eloquent: Ordering results of all()

by IT Nursery

I’m stuck on a simple task. I just need to order results coming from this call $results = Project::all(); Where Project is a … Read more

PostgreSQL DISTINCT ON with different ORDER BY

by IT Nursery

I want to run this query: SELECT DISTINCT ON (address_id) purchases.address_id, purchases.* FROM purchases WHERE purchases.product_id = 1 ORDER BY purchases.purchased_at DESC But … Read more