How to detect changes in custom types in sqlalchemy Question: I am working on custom types in sqlalchemy columns using TypeDecorator. I’m storing my data in JSONB inside Postgres DB, but in code I am serializing and deserializing it in a data class. But when I change any field of that data class, it didn’t …
Connect CloudSQL Postgres Db using Python Question: So I am DevOps engineer please excuse for my lack of knowledge in python development. I am trying to connect a CloudSQL Postgres 14 Db using Python. So that I can insert data and read data from my application. Can someone help me understand why I am getting …
psycopg3 inserting dict into JSONB field Question: I have a table with a JSONB field and would like to insert into it using a named dict like so: sql = "INSERT INTO tbl (id, json_fld) VALUES (%(id)s, %(json_fld)s)" conn.execute(sql, {‘id’:1, ‘json_fld’: {‘a’:1,’b’:false, ‘c’: ‘yes’}}); I tried the answers in this question but those all apply …
Indexing a SearchVector vs Having a SearchVectorField in Django. When should I use which? Question: Clearly I have some misunderstandings about the topic. I would appreciate if you correct my mistakes. So as explained in PostgreSQL documentation, We need to do Full-Text Searching instead of using simple textual search operators. Suppose I have a blog …
I created a table and I'm trying to modify it but I get this error Question: I started tody with Python SQL Database conexion (or in general python databse collection i guess) and I was following a tutorial on youtube about how to create and modify the table, but at the moment when I tried …
How to delete rows by a condition using sqlalmchemy and fastapi? Question: I’m trying to delete some rows that a ‘null’ in a Postgresql db by this: async def delete_empty_batches(): query = Batches.delete().where(Batches.c.acquired_by_warehouse_date is None) database.execute(query).fetchall() s = Batches.select() return await database.execute(s).fetchall() But nothing happens. I have tried to make a query in pgAdmin and …
Trying to use Python variable names in psycopg2 queries Question: I am writing part of a Python program where I query a PostgreSQL table called stockNames and use the results to print information based on user input. stockNames has the following layout: company stockTicker industry Starbucks SBUX Food/Beverage … I also have a series of …
Get last actual data Question: There is a table rule_chains: ID payroll_type_id stuff_department_id start_date 1 1 89 2023-03-01 2 2 89 2023-03-01 3 1 89 2023-04-01 My problem is to get the actual entity for today. For example today is 2023-03-01 and I need to get this two entity with id = 1 and id …
How do I connect my telegram bot (telebot) to PostgreSQL url Question: I would like to learn how to connect my telegram bot to database url so that I store bot users, date of join and user information. Help me through that tutorial. How to connect a my telegram bot to PostgreSQL/database url. #code from …
How to assign the url of the uploaded photo from AWS to database(postgresql) model in the same endpoint Question: Below that there is an endpoint that uploads a photo to aws-s3 and return the url of the photo. This works well. session1 = boto3.Session( aws_access_key_id=’XXXXXXXXXX’, aws_secret_access_key=’XXXXXXXXX’ ) S3_BUCKET_NAME = "XXXXX" s3 = session1.resource("s3") bucket = …
