lets say i have a table called employee that stores employee data emp_id emp_data 1 xxx 2 xxx Now lets say i want to delete an employee, if there exists any other entries of this employee's Id pointing to this…
I am facing an issue with a moderately simple-looking SELECT SQL Query. My requirement: For One specific company, if there are multiple records with the same date, I want only the first record of that date, not all from that…
The problem There is currently a system that reads unique identifiers (id) and their attached datasets from an SQL table into an unordered map. These datasets used to start with id 1, but datasets are added and deleted in a…
This would be considered a "new shop open" in that particular month and year. Say company Store123 placed their first order in January, 2023 and it checks if Store123 ordered before that. If the company did not than Store123 would…
I wrote a Python program that users can send posts, signup and login. I used MySQL in this app. When I try to open MySQL with localhost it works, But when I insert my IP Address it does not work.…
I am having table with column registration year with values like '2017-2019' and '2014-2016. If my input value is 2018 then what will be my SQL query to get that record which is in between '2017-2019'. id registration_year 1 2014-2016…
i have two table like this: phones id name price 1 a20 100 2 a30 200 models: id phone_id model 1 1 a20-128GB 2 1 a20-256GB 3 2 a30-128GB 4 2 a30-256GB 5 2 a30-512GB i want to write SQL…
I'm pretty new to SQL so sorry if this is a dumb question. I have a large table containing most of the counties from every state with a median home listing price. Each county/state has multiple observations because it has…
I currently am incrementing a column for order number values with the increment() function in Sequelize. ie: .increment("order_no", { by: 1 }); Occasionally a request hits my api at the exact same second and I end up with a duplicate…
From the following table of sport matches: id_ p1_id p2_id match_date p1_stat p2_stat 852666 1 2 01/01/1997 1301 249 852842 1 2 13/01/1997 2837 2441 853471 2 1 05/05/1997 1474 952 4760 2 1 25/05/1998 1190 1486 6713 2 1…