Databases + Python with SQLite3

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This is a tutorial for newcomers to using databases with Python. We what a database is, how to create one, how to create tables, and how to insert, retrieve, edit, and delete data.
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#python #coding #databases #sqlite

00:00 - What is a database?
01:15 - What is are tables?
04:49 - Creating a SQLite Database
05:38 - Creating a Table
08:22 - Inserting Data
12:47 - Retrieving Data
17:31 - Editing Data
21:57 - Deleting Data
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Комментарии
Автор

Great tutorial. Here are some observation. You don't need to create a database before and place it where you are going to be executing your queries. Sqlite3 will create the database when you establish the connection if not exists. If the database does exists a connection will open it. Also, you don't want to override an existing table, I will suggest to use "CREATE TABLE IF NOT EXISTS..." this will prevent overriding a table with valuable information in it.

aavalos
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Your explanation is amazing, thank you.

henrycovil
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Thanks for the video. I have abandoned sqlite3 module as I found peewee - nice warpper for python sqlite3 ;)

dimioo
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Every other tutorial I've seen teaches to create a cursor object and assign it to a variable, but it seems you skip this step and simply call the execute method directly from the connection object? Is there any advantage / disadvantage to either way?

tomiwan