I have two queries and the only difference between then is that one is counting the success status and the other failure status. Is there a way to get this result in just one query? I’m using SQLALchemy to do the queries. Answer You can use conditions on Count, your query will look like:
Tag: sqlalchemy
open .db-file from python script returns empty file
I want to open a .db-file from python to inspect it. I can open it from a terminal, but from a python-script it only shows an empty file, while this script does work for another .db-file. What is going on? Answer I cannot reproduce your error, are you sure the paths are right ?
Is there a method in Python to auto convert datetime.utcnow to GMT+7 now?
Is there a proper method to easily converts UTC now time to GMT+7 now time in Python’s datetime? I need to apply this to my db models in Flask. Here is my models.py Any advices would be appreciated. Thank in advance. Answer Finally, I can address this issue by creating a new method called gmt7now() with the help of pytz
SQLAlchemy order_by ASC using nulls_last raises ProgrammingError (Google Spanner DB)
I’m trying to be able to dynamically sort a query by a given column name and have nulls be placed at the end of the list. It works fine when using desc ordering, but raises a ProgrammingError when trying to use nulls_last with asc order. It appears this error is being raised as the result of an InvalidArgument error (see
Difference between included SQLite3 library in Python and SQLAlchemy [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 months ago. Improve this question I know there is an included library in python for SQLite3, and when I was studying Flask the course instructor
SQLAlchemy bulk insert statement in Postgres database throws AttributeError
I am trying to insert rows in Python SQLAlchemy by bulk into a Postgres database by using an insert statement. I need to use the insert statement instead of bulk_insert_mappings, as I want to silently ignore failed insertion of duplicate entries. This was not apparent before, but I have added it now. The table is created as it should. However,
Is there a way to have SQLAlchemy NOT change 1 to True and 0 to False for BIT columns?
I am using SQLAlchemy to read data from a SQL Server database and then turning the table data to a csv file to later hand off. However, I noticed when there is a 1 or 0 in a SQL Server table field, the csv output has True or False instead. I know to Python, it’s still a number since True
SQLAlchemy alternative names for table columns
I know my question must be very simple but I couldn’t find any straight answer to it. I am mapping a table with SQlAlchemy : How to I set up an label for the existing columns above to avoid they current name with spaces? Bonus question : What is the advantage of mapping as as class instead of mapping as
SqlAlchemy db.Enum: How to detect it and retrieve the values
I have a function to add a column to a model: I use it like: I call the col function for various columns. I would like to put the last line inside this function and it can be called on Enum type and fill the choices something like: However, it gives the error: Answer The first issue I’m seeing in
pydantic.error_wrappers.ValidationError: 11 validation errors for For Trip type=value_error.missing
Im getting this error with my pydantic schema, but oddly it is generating the object correctly, and sending it to the SQLAlchemy models, then it suddenly throws error for all elements in the model. i must say that all the fields should have values. And the error trace do not references any part of my code so i dont even