I tried to do it but it was impossible for me. the solution I need to display single column data into multiple column for the current table only. e.g column [status] 3 records {present,late,absent} to display 3 columns and single row, to prevent 3 rows The result i want to display like this by grouping tid Ta…
Locating unique column values and use the output for the next query
Rails 6.0.0 ruby-2.6.2 Hello I have a model called “Group” which connects to an SQLite database. This database has two columns I’m interested in, they are hits, as an integer and iteration as an …
Efficiently implementing pagination in postgres while avoiding duplicates?
Let’s say you’re making a site like reddit and you want to have infinitely scrolling posts (25 at a time, and 25 more loaded when you reach the bottom) The naive solution uses LIMIT AND OFFSET, but …
Select rows based on duplicates in a column
I want to find all duplicates in a column and display the primary key so I can clean them up. So after a bunch of tutorials I have this which is supposed to work and returns no rows which is great …
SQL How to SELECT python variable in SQL
Tried something like this cur.execute(‘SELECT ? FROM translations WHERE imagename = ? ‘, (target, filename,)) but it just returned [(‘de’,), (‘de’,), (‘de’,), (‘de’,), (‘de’,), (‘de’,)] being target …
Storing data to SQL not working with my sql connector and scrapy
I am trying to store my scraped data with scrapy to a SQL database but my code does not send anything while no error is mentioned when runned. I am using my sql connector since I don’t manage to install MySQL-python. My SQL database seems to running well and when I run the code the traffic KB/s raise. P…
How can I Create Multiple DATEDIFF Columns?
I would like to calculate the DATEDIFF between each of the different ranges represented by the NewValue column below. Id CreatedDate NewValue Count 0 ABC 2018-11-28 09:16:15 …
Join three count queries and get results in to three columns
I want to combine three count queries and get results in to separate columns. This is how my data set looks like. I have tried this select id, sum(val = 3) as valcount3 from (select id, s1 as val …
Sql check a value in column is greater than number of rows
i am building a web app where customer can book a service from a business(vendor). but first vendor need to add what services he provide, where he able to deliver those services, and from which time (…
Group by in one table
I have list of users and a visits table . I want a list of users whose profile has been viewed : visits table ╔═════════════════╗ ║ vistor visited ║ ╠═════════════════╣ ║’26000′, ‘26023’ ║ ║’26000′, ……