User permission sqlalchemy.orm.exc.MultipleResultsFound: Multiple rows were found for one()

I can use below code to control the authority of menu 15,the role_id’s is_edit is 1, the use can change the data in that menu, or user doesn’t have access to change/edit data,but the code is ugly, and …

Validation error while inputting a record into Postgres

I have created a table using the following query, CREATE TABLE user_account ( user_id serial PRIMARY KEY, user_name VARCHAR ( 50 ) UNIQUE NOT NULL, password VARCHAR ( 50 ) NOT NULL, email VARCHAR ( …

Python3 Can’t load plugin: sqlalchemy.dialects:mysql.pymysql

I’m trying to connect to my database with sqlAlchemy and get the error Can’t load plugin: sqlalchemy.dialects:mysql.pymysql. The script worked before and I didn’t change anything, tho I can’t connect …

How to get list of objects from multi-value field with SqlAlchemy using ORM?

I have MS Access DB file (.accdb) from my client and need to describe tables and columns with declarative_base class. As I can see in table constructor – one of column has Integer value and has …

Bulk Saving and Updating while returning IDs

So I’m using sqlalchemy for a project I’m working on. I’ve got an issue where I will eventually have thousands of records that need to be saved every hour. These records may be inserted or updated. I’…

SQLAlchemy SSL SYSCALL timeout coping mechanism

I’m using a combination of SQLAlchemy and Postgres. Once every while my database cluster replaces a failing node, circle of life I guess. I was under the impression that by configuring my engine in …

How to have the possibility to call name of columns in db.session.query with 2 tables in Flask Python?

I am developing a web application with Flask, Python, SQLAlchemy, and Mysql. I have 2 tables: TaskUser: – id – id_task (foreign key of id column of table Task) – message Task – id – id_type_task I …

Bound metadata RemovedIn20Warning in debug mode

I use SQLAlchemy 1.4.0beta1 and enabled future flag for both the engine and the Session. Normally I don’t receive warnings. But in debug mode I receive warnings on 2.0 style select statements. My …

Can’t append to an existing table. Fails silently

I’m trying to dump a pandas DataFrame into an existing Snowflake table (via a jupyter notebook). When I run the code below no errors are raised, but no data is written to the destination SF table (df …

“Maximum number of parameters” error with filter .in_(list) using pyodbc

One of our queries that was working in Python 2 + mxODBC is not working in Python 3 + pyodbc; it raises an error like this: Maximum number of parameters in the sql query is 2100. while connecting to SQL Server. Since both the printed queries have 3000 params, I thought it should fail in both environments, but clearly that doesn’t seem to be the case here. In the Python 2 environment, both MSODBC 11 or MSODBC 17 works, so I immediately ruled out a driver related issue. So my question is: Is it correct to send a list as