I have a photos table, a tags table, and a bridge table called photos_tags. Imagine there's a photo which has been tagged with dog, cat, and bird. This means that there'll be 1 record in photos, 1 record in tags,…
I'm working in a multi-tenant software to manage inventory of products and I'm having difficulties to create a query to bring products inventory based on quantity criteria. Use case: Bring all products with all their inventory from all warehouses from…
I expect the SQL-Statement to update a limited amounts of rows, instead of every row: UPDATE Join_Test_1 SET ANumber = 3 FROM Join_Test_1 AS ST1 INNER JOIN Join_Test_2 AS ST2 ON ST1.PKID = ST2.PKID; I expect the statement to behave…
I have a query (PostgreSQL 15.4) like this: Select p."prodId", p."prodDesc", p."areaName", x."location1" as "Location" From ops."Products" p Inner Join ops."Locations" x on p."prodId" = x."prodId" and p."areaName" = x."areaName1" Here's the caveat: in the table Locations, there are three…
I am using pyspark to join two tables with 100k rows for each (so not skewed join). It takes longer than 30mins even an hour which I think something is wrong here. The code is just regular join a =…
I have 3 tables. country, team, player table Country id name 1 x 2 x 3 x table Team id name country_id 1 x 1 2 x 1 3 x 1 table Player id name country_id team_id 1 x 1…
Cost per box is in the table named products whereas no of boxes is in sales table. PID is common in both tables both are in same schema and database. I want total cost of boxes per PID shown against…
I want to join two tables to get the output as shown in Table4. Below are the details: Table1: SalesData Date PlatformId UnitsSold Revenue ChannelId 2024-07-01 ABCD1 12 1200 1 2024-07-02 ABCD1 11 1000 1 2024-07-01 ABCD2 4 1200 2…
I have two tables I want to compare data from. The query of the first table is below and it gives me 12 rows. ***** 1st Query ************ SELECT distinct a.pnr AS PNR, a.station_code as Station,a.date as Date, sum(a.allamount) as…
I'm studying Employees Sample Database which has the following table. create table dept_emp ( emp_no int not null, dept_no char(4) not null, from_date date not null, to_date date not null, primary key (emp_no, dept_no), constraint dept_emp_ibfk_1 foreign key (emp_no) references…