Engines and connection strings
Alright, it's time to create your first engine! An engine is just a common interface to a database, and the information it requires to connect to one is contained in a connection string, for example sqlite:///example.sqlite. Here, sqlite in sqlite:/// is the database driver, while example.sqlite is a SQLite file contained in the local directory.
You can learn a lot more about connection strings in the SQLAlchemy documentation.
Your job in this exercise is to create an engine that connects to a local SQLite file named census.sqlite. Then, print the names of the tables the engine contains using the .table_names() method. Note that when you just want to print the table names, you do not need to use engine.connect() after creating the engine.
Este ejercicio forma parte del curso
Introduction to Databases in Python
Instrucciones del ejercicio
- Import
create_enginefrom thesqlalchemymodule. - Using the
create_engine()function, create an engine for a local file namedcensus.sqlitewithsqliteas the driver. Be sure to enclose the connection string within quotation marks. - Print the output from the
.table_names()method on theengine.
Ejercicio interactivo práctico
Prueba este ejercicio y completa el código de muestra.
# Import create_engine
# Create an engine that connects to the census.sqlite file: engine
engine = ____
# Print table names
print(____)