The following code: SELECT ets.event_id, ets.event_date, dtn.don_date, dtn.don_date - ets.event_date AS date_diff FROM events ets, donation dtn GROUP BY ets.eve
I have a call dataset. Looks like this If a call about a certain member comes in within 30 days of an "original call", that call is considered a callback. I ne
I am trying to add a calculated column that computes a rolling average of a sorted partition. I can make it work as a query but cannot seem to get the result to
I am struggling to create the correct prefetch behavior in Django. Here is the outline of the problem: Each Account has DailyQuotes, updated daily at different
DB Fiddle: https://www.db-fiddle.com/f/u1N4YYV3wmiWndnZNb95xz/5 For the following tables nodes and leaves, with nodes having just 9 records and leaves having a
Table def: CREATE SEQUENCE IF NOT EXISTS lazy_product_stock_id_seq; CREATE TABLE "public"."lazy_product_stock" ( "id" int4 NOT NULL DEFAULT nextval('lazy_pr
I solved this issue with the code below in my build.gradle allprojects { configurations.all { resolutionStrategy { force 'org.xerial:sqlite-jdbc:3
I have a set of data for some tickets, with datetime of when they were opened and closed (or NULL if they are still open). +------------------+-----------------
I have 2 tables: google_analytics and marketing_costs. How can I join these 2 columns (google_analytics['source'] with marketing['medium']) even tho they don't
I'm going to migrate data from PostgreSQL database to Yandex's ClickHouse. One of the fields in a source table is of type JSON - called additional_data. So, Pos
I'm trying to run the weighted moving average Silota query with similar data in a Presto database but am encountering an error. The same query in the Redshift d
I have a table. There is data in this table and there is a checkbox next to each data. Multiple selection is possible. After the user makes a selection, the id
I've been trying to filter the data for the last X number of days. All these columns work as standalone results when I remove the time filter from the where cla
I get error "Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used
I have following two tables: comments comment_post_ID status comment_type 1 complete course_status 2 complete course_status a1 complete lesson_status a2 passed
Task: Write a query that returns a list of houses from the TB_ELEKTROSTAL_2018 table. It is considered that all subscribers who have the same address belong to
I have these 6 tables and query which returns everything I want, but I want to add a new pivot table, so I can get a list of rows linked to it. Query: SELECT DI
Postgres method array_position(array, element), like other things in SQL, is 1-based. For example: SELECT array_position(array[4,5,6], 5) -- returns 2 But,
I have a table in which there is a field last_update_date in which the date is displayed in short form like 25/02/2015.If I want to extract the date in long dat
The main goal is to create a function that updates 3 columns on another table (the update of the 2 columns from the first table trigger the update on the second