I have a table like this (unsorted): risk category Low A Medium B High C Medium A Low B High A Low C Low E Low D High B I need to sort rows by category, but first based on the value of risk. The desired result should look like this (sorted): risk category Low A Low B Low C
Tag: sql-order-by
How would I make my SQL statement show only the first line (lowest price + total purchases)
I’ve got this SQL exercise I’m trying to complete but I can’t figure out how to specifically show one row that should contain the media type with the lowest # of purchases and purchase value. I’m completely unsure of what I should add after my ‘group by’? So this is what I …
Mysql multiple order, one order by date with condition
I have a simple SQL request which orders the result by the number of sales and then by the number of views. But I would like the new images with a date greater than for example “2022-05-01” to appear just after the ones that have been sold. Is it possible to have multiple order and in one of this …
How to select best customers and group them by how much they paid
I am using SQL server to select this table and group the customer id and first name according to their total payments made to the store. I tried using but it returns the following error: not contained in either an aggregate function or the GROUP BY clause Could you please clarify what I did wrong? this is my …
MySQL ignore NULL Value while using LAG() function
I want to calculate the MonthByMonth difference of payments happening throughout the year. For example, if I had 100 payments in February & 120 in the month of March, the difference would be 20. I have already made a query that uses LAG(), but the only problem I’m facing is that the query is showing…
SQL Query, What have I done wrong? I am fairly new to mySQL
Solution problem solution uploaded Answer You have to tell the count() function what to count. You can insert an individual column, or * for all of it etc. But you have to count something. This is a fiddle, showing how it works: https://www.db-fiddle.com/f/dbPnE4BXv8oRRkQY4WQs8v/1
Select the row with the most recent modified date
I have this table: user_id name email modified_date 1 John a@gmail.com 2022-01-01 1 John b@gmail.com 2022-01-02 1 Lucy c@gmail.com 2022-01-03 2 Joey d@gmail.com 2021-12-24 3 Mike e@gmail.com 2022-01-01 3 Mary f@gmail.com 2022-01-02 I’m trying to get unique user_id’s email with the most recent modi…
How to SUM values of a column and then order by another column using SQL?
When I SELECT * FROM table; I have the following result: So I try to sum the total of votes with SUM(votes) as tt_votes and then group the result by candidate to have a desc order. state column shows the first (or the last?) record for the candidate, but what I’d really like to have is not only group by
SQLite – calculate percentage increase in values of a numeric column
I am interested in getting the % increase or decrease of the values in one column with respect to the previous value. Can someone please advice how I should do this? Thanks This is what my table looks like And this is what I would like Answer Use LAG() window function to get the previous value of sales for ea…
SQL – Ordering table with subquery for select
I am trying to do ordering on query with subquery for a name from uuid. Let’s have those two tables in MySQL: bans: id uuid time reason 1 c6b8eade-7db9-345b-b838-8f8361552cf5 1642369382 Test 2 0138c279-c5fa-3acd-adaa-8edb7b4569d8 1642384565 Spam 3 3c01262c-a3c3-3133-ba43-92a9ded01c27 1631876477 Hax user…