We need to query the DB for students whose points are greater than the average for the uni they go to. Now, in the handbook, it is used with GROUP BY clause, but I fail to understand why one is needed here at all if the universities are already grouped in the inner query’s WHERE condition. Could you som…
Tag: sqlite
Count rows with equal values in a window function
I have a time series in a SQLite Database and want to analyze it. The important part of the time series consists of a column with different but not unique string values. I want to do something like this: I don’t know how to get the countValue column. It should count all Values of the partition equal to …
Continue executing sql statements if error found python sqlite3
I have a file containing sql commands and I want to execute the commands given in the file and if any command throws any error then ignore the error and execute the next command. Here is a sample file: For eg. if the classroom table doesn’t exists then the drop table command will produce an error and th…
Does SQLite support character range with [ ]?
I’m trying to use Northwind version in SQLite (someone posted it on Github and it’s super handy), but my query for selecting employees with last name starting with B, C, D, …, L using LIKE returns empty table: The table contains such names (most of them, in fact). Does SQLite not support cha…
SQLite How to calculate a difference between two variables of the same table [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 am pretty new to SQL and I can’t figure out how to sum the amounts (in_amount –…
Sqlite no results for query with a bound parameter, works with identical query with hardcoded value
I am coming up against a strange problem with Sqlite 3. I have a relatively simple query that takes a bound parameter in its WHERE predicate. When executing the query with the bound parameter, I get 0 …
Is there a way to calculate the average queue time of an entire column that contains data in time format
I have imported a data extracted from a cisco call center in SQLITE table. These data deals with information related to the incoming calls . Among this table , there is a column called “queue time” which indicates the time spent by the caller waiting in the queue before reaching an agent . I would…
How Can My sqllite3 interaction be fixed?
I’m trying to get an admin account to edit a ‘rank’ (basically access level) for one of the profiles in my data-base. The error is: The code that seems to be the problem is: Originally, it was all on one line and it didn’t work, and now I’ve tried it on multiple lines and it stil…
Is using LIMIT in SQLite gives the data or rows in “FIRST IN FIRST OUT” basis?
I am using SQLite in my Ionic project, I am saving my Log Files in SQLite server, for this I want to limit the .db file with only last 2000 data values in FIRST IN FIRST OUT basis, does using LIMIT 2000 will give me the last 2000 values stored or the first 2000 values I have stored (which is
Finding the most active video maker within multiple tables(SQLite)
How can I find the initials of the most active video maker, the one that made the most videos considering the following tables using only one query? CREATE TABLE IF NOT EXISTS Videos ( title TEXT …