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Python

Posted by Anthony Grodowski
Anthony Grodowski
4,902 Points

safe=True

What excatly that means? It's connected with my concern about that chunk of code:

def initialize():
    """Create the database and the table if they don't exist"""
    db.connect()
    db.create_tables([Entry], safe=True)

How does python know that this shouldn't be done while the database already exists? I'm guessing that it has something to do with safety=True but idk how and why. Also what's the difference between database and the table? Isn't the database a table itself?

1 Answer

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,974 Points

I had to go to the peewee docs to verify this but safe is a parameter to specify whether or not to use the IF NOT EXISTS clause. If set to true then the table will only be created if it doesn't already exist.

What a database is depends on the type of database you are referring to. A database can contain one or more tables. It may also contain views, stored procedures, forms, reports, among other things. A table is a single element within a database and is used to store data.