How to Execute SQL from a File on SqLite Using Python
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- Опубликовано: 25 фев 2022
- Let's go back to our look at SqLite, a fantastic, high performance file database that can be embedded with apps and handle all kinds of data operations when no data server is available. Like all RDBMS systems, SqLite can take a SQL file that is full of statements and execute them all. This allows you to build your SQL in your favorite editor, just as you would do for other databases, then run it just by specifying the filename in your script. Join me as we introduce executescript on sqlite3 using Python.
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Just what I was looking for! Thank you!!
Glad I could help!
Hi Sean can you maybe show/make a video of how you read the .sql script in sqlite3, but with a function and then add, remove and update information in your database?
Great idea for a video, thanks!
Great video. I have a few questions though.
1)Can you import * from the sqlite3 module and if so, isn't that better to do?
2)Why did you import a seperate function from sqlite3 if the whole module was imported in the first place?
3)On line 6, on the filename variable, What does 'r' do exactly? I've noticed that it covers the backslashes but what's the definition of it?
Good questions! 1. Yes you can use import *, or just import sqlite3 and it will run fine 2. I imported Error separately to show what we're trying to catch in our except: block, but it is not necessary to import separately. 3. r in the open function specifies "read only"
This is pretty late but 3) the r is for raw, it just takes everything between quotes as is and ignores all expressions such as
or \ or \t and prints them out
Its not a good practice to import anything using * . Imagine that you have tu packages and they have a method with the same name.
Good Video,I have a question too.
How to execute multi SQL statements from a sql file with psycopg2 using python
Great idea for a video! Haven't covered PostreSQL topics yet.