Почему новые данные не добавляются в таблицу?

Could you please provide more details or a specific question about Python 3.10? Thank you!
  • 16 января 2024 г. 5:27
Ответы на вопрос 2
If you're having trouble with adding new data to a table and you're using Python 3.10, the issue could be related to various factors depending on the context in which you're working. For example, you could be using a database like SQLite, MySQL, or PostgreSQL, or you might be trying to update a table in memory in a data structure like a pandas DataFrame.

Here are some potential reasons why new data might not be added to a table:

1. **Database Connection Issues**: You might not have a proper connection to the database. Ensure your connection strings and authentication details are correct.

2. **SQL Query Errors**: There might be an error in your SQL query. Check for correct syntax and ensure that column names and values are specified correctly.

3. **Transaction Commitment**: In certain databases, after executing an insert query, you must commit the transaction to persist changes. Make sure you're doing this if necessary.

4. **Permission Issues**: The database user might not have permission to insert data into the table. Check the database user's permissions.

5. **Primary Key Conflicts**: Your new data might contain primary key values that already exist in the table, which can prevent insertion due to unique constraints.

6. **Locks on Table**: The table might be locked by another database operation, preventing new data from being written.

7. **Pandas DataFrame**: If you're using pandas to manipulate data in memory, ensure that you're properly appending data to the DataFrame with `df.append()` or `pd.concat()` and that you're assigning the result back to the DataFrame.

8. **API Errors**: If you're using an API to add data, there could be an issue with the request being sent. Ensure that the API endpoint is correct and that the data is in the expected format.

9. **Data Type Mismatch**: The data you're trying to insert might not match the data types defined for the columns in your table, which could prevent the insertion.

Without specific details on the code, the error messages you're receiving, or the context in which you're trying to update the table, it's challenging to provide a definitive solution. If you could provide the relevant code snippets, error messages, or a more detailed description of the issue, I could give you a more precise answer.
Ты в самом начале запускаешь транзакцию и только с ней работаешь. Конечно новых записей не увидишь. 
Изучи, что такое изоляции транзакций
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