I’m pretty new to SQL and the Sqlite3 module and I want to edit the timestamps of all the records in my DB randomly. import sqlite3 from time import time import random conn = sqlite3.connect(‘…
Tag: sqlite
Grouping certain rows into one row in sqlite
This is the query that got me this result. SELECT country, COUNT(DISTINCT(customer_id)) total_customers FROM customer c GROUP BY 1 ORDER BY 2 DESC country total_customers 1 India …
Using COUNT in INNER JOIN in SQLite (to count absent records)
In SQLite, I have a table named Items: | id | name | |—-|——-| | 1 | .. | | 2 | .. | | 3 | .. | | 4 | .. | | 5 | .. | | 6 | .. | Each item might have tags associated …
Using json_extract to find in all objects in JSON array
How can json_extract be used to look through all objects in an array? It works if you knew the key, but I want to look at every single object and find the one that matches. How to get this to work? Answer You have this flagged with MySQL and Sqlite, so I’m going to flip a coin and give a
Group timestamp by hour SQLite
I am trying to group my timestamp column which has a data type of TimeStamp by hour. So this works for grouping by day: I have tried the following for grouping by hour: But this gives me the error: no such function: HOUR: I have seen similar questions asked, but it was DateTime used, not TimeStamp. Additionally I would like
Getting all weeks data of a month using inner join
I have the following query: Above query explanation: I’m getting all weeks data PaidKM which driver gets in a whole month. The month for example starting date is 01-07-2018 and ending date is 31-07-2018 which covers whole month # 07. But when I change the month it gives me the same results all time. Above GIF’s query implementation: I have
How to join two tables with the same number of rows in SQLite?
I have almost the same problem as described in this question. I have two tables with the same number of rows, and I would like to join them together one by one. The tables are ordered, and I would …
Android Room Persistence Library – How to find entities with ids contained in list of ids?
I am trying to do the following query in my DAO. @Query(“SELECT * FROM objects WHERE obj_id IN :ids”) List queryObjects(List ids); It gives me this compile-time …
SQL – return each column and it’s sum as rows
I have a table like this: date | employee_id | field1 | field2 | field3 | … | fieldN I need a select which will return something like: field1 | SUM(field1) field2 | SUM(field2) field3 | SUM(…
python sql ORDER date doesn’t work
I ran into another (probably self inflicted) issue. Python3.6 and sqlite I’m very sufficient in creating a db and adding tables and info and all that. My issue is, that the info I’m ading is not …