I work with SQL Server 2012 and have an issue: I can’t update status with No data returned where no result returned from select statement cross apply function. Meaning where no data returned when join parts and company to function then update status to this part with nothing data for that part when data…
Compare two MYSQL tables and return missing dates and group by column
I have two tables. I want to compare table A with B and get the missing date from with name of the user. TABLE A TABLE B EXPECTED OUTPUT Also, Along with it can I get the count of the missing dates for each user if possible? Answer You must cross join Table B to the distinct names of Table
Cross Join in Hive
I’m trying to create a new column time_period while running the query below. If the date difference between a given transaction and the most recent transaction in the reference table is fewer than 7 days, then mark it as a recent transaction, else mark it as an old transaction. However, the query below …
Select every second record then determine earliest date
I have table that looks like the following I have to select every second record per PatientID that would give the following result (my last query returns this result) I then have to select the record with the oldest date which would be the following (this is the end result I want) What I have done so far: I h…
Django: How to mangle through relations
I have an instance of ModelA and want to query all instances of ModelC which are related to ModelA through ModelB. ModelA -> all ModelB instances with FK rel_a = ModelA -> rel_c.all() I know how I would do this in SQL but I really do not get how I should unmangle these relations Answer You can query wit…
SQL query with having function to only includes parts of another column?
I am trying to find fact_order_id’s that have beverage only items. This would make the fact_order_id not include any food items. I have used 2 separate SQL Queries below. When I go back and check my work, I notice some fact_order_id’s in the output aren’t beverage only orders. Here are the 2…
Pass data from PHP to HTML
Edit: Thank you for your help and time. I will change all my extension to .php as recommended and check the link that was shared :)! I’m a beginner at coding and I have been stuck for a few days on a problem. So, I have coded a html page with a login form. Once the user click the button
How do I remove duplicate data in SQL?
I need to display lines that are not repeated, but only with their neighbors, they should remain in the entire database (also in a single copy) in sqlite. Here’s what I’m missing: Initial database: What should be output: Thanks 🙂 Answer Using Lag and Case:
SQL Order By in Custom Sequence [closed]
Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 2 years ago. Improve this question I have data in this order How can I sort this data in this order? Answer To do this requires…
Why should we always close a connection to a database?
I was asked this question in an interview. Why is it important to close a database connection? Is it just good practice because it might be wasting resources or there is something more to it? Answer You already mentioned first reason: resource leaks. This would mean that the usage of memory, sockets and file …