Hi i develop web app with c#. I have sql query and i convert to linq but it’s not working true because of order by My sql query My linq Answer Here’s how you can do the order by on the count of each group and take the 3 with the highest count.
SELECT rows with MAX id minus 1 with group by
I have a table with id, city_id, and stock which looks like this. id city_id stock 1 1 1000 2 2 500 3 3 11000 4 2 600 5 3 12000 6 1 2000 9 3 13000 10 1 3000 11 1 4000 12 2 700 To select the latest stock values for each city_id I used the following query,
Concatenate variable in Athena SQL query from Python Lambda function
I have a Python Lambda function that creates a SQL table in Athena. How do I properly concatenate variables in my query? When I set the LOCATION value, I receive the error response below. The function runs successfully if I hard code the LOCATION value. Error response: Lambda function: Thank you. Answer Have …
How to find login name in SQL Server from a user_name of database
How can I find login name in SQL Server from a user_name of database using a stored procedure? Answer For example you can use the system functions
Java Sqlite how to print a.rowname
I asked myself how I print a.rowname in Java with jbdc sqlite. Or did I take the wrong solution to fetch all the Selected data? I tried this: And I get this error: In Python it works kind of like this. I can later just get the Selected data from the array: Answer You do not select a.spieler try: Update
Calculating time difference returns null [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 1 y…
How to carrying over values for missing dates in time series using last value windows analytical functions in mysql
How to carrying over values for missing dates postcode/indicator_category to create full monthly time series. Im trying to use last_value to carry over values but not able to make it. Is my approach correct? Any help would by highly appreciated. Example given a table: INSERT INTO value to indicator_data table…
How to store number in shortest possible size?
I will be adding comments into my website and I want to have a tree structure so each comment can have a parent. This creates a problem when retrieving comments because each comment would have to be traversed for children and this is unacceptable when it comes to database storage. There are various solutions …
Simpler way to do a SUM with a fanout on a join
Note: SQL backend does not matter, any mainstream relational DB is fine (postgres, mysql, oracle, sqlserver) There is an interesting article on Looker that tells about the technique they use to provide correct totals when a JOIN results in a fanout, along the lines of: A good way to simulate the fanout it jus…
PHP, SQL – INSERT INTO SELECET CASE
I have this PHP code connected with form (using nette framework), name of columns are different in every table but geo column is in everyone: which generate this SQL: but I’m getting this error: The goal is to COPY data into the same table but change value of geo column before insert. I know that ELSE v…