I'm writing a solution for a DataLemur SQL question and I almost had it right but there is one row missing. I have written this query myself: WITH CTE AS ( SELECT user_id, transaction_date, DENSE_RANK() OVER (PARTITION BY user_id order…
I want to create a list of dictionaries from a postgres table. I use this code: rows_dict = cur.fetchall() # fetch all rows from the Postgres Database columns = [] entities_list = [] for column in cur.description: columns.append(column[0].lower()) entities =…
Is there a way to figure out which statement from the block is currently running in Postgres? (Even extra extensions or tracing might be an option) Below is the quick way to reproduce but in real scenario the block is…
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 have a table like below: ID NextID 1 5 2 NULL 3 6 4 7 5 8 6 9 7 NULL 8 NULL 9 10 10 NULL I want to get the ID path: 1 --> 5 --> 8…
I am using the latest hibernate version (6.5) and hypersistence utils in this version is not supporting custom array types as it's natively supported by hibernate > 6.4. I've tested and this works natively for float[] arrays, so e.g. this…
As the title describes I want to have a zero-or-one to zero-or-one relationship. For example, let's say we have two tables Calls and Files. A call might have an attached file on it, and vice versa. But I have a…
I am using the following standard to mount a local volume into my postgres container as described here: https://hub.docker.com/_/postgres $ docker run -d --name some-postgres -e POSTGRES_PASSWORD=mysecretpassword -e PGDATA=/var/lib/postgresql/data/pgdata -v /custom/mount:/var/lib/postgresql/data postgres It worked well for months but since the…
I have two tables (see below) in a postgreSQL database. Table1 tracks all changes made to each ID (i.e. multiple rows per ID): create table table1(id,record,name,data1,data2,data3)as values (1,1,'Dave', 1.2,55,1) ,(1,2,'David', 1.2,55,1) ,(2,1,'Sam', .8,30,2) ,(3,1,'Jenn', .9,28,2) ,(4,1,'Arthur',1.1,77,1) ,(5,1,'Jim', .7,42,2) ,(5,2,'Jimmy', .7,42,2)…
In Oracle I can have an SQL string like this select * from table where rownum <= ? Then in an PreparedStatement I can set the rownum as a parameter. How does it work with Postgres JDBC (Java) with the…