Creation Operations
Creation operations in SQLite involve adding new records to a database table. These operations allow you to populate your tables with data. Let's explore how insertion operations work within the context of database creation.
You've learned how to create tables in the previous section. Please be aware that the following code examples do not cover tables creation. This is because we are focusing on working with tables that have been previously created.
Inserting a Record
This code snippet uses the SQL INSERT INTO statement to add a new record to the "users" table, inserting values for the "username" and "email" fields. The data is passed as a tuple, and the query is executed with the execute() method to insert the values.
import sqlite3
# Connect to the database
conn = sqlite3.conn('my_database.db')
cursor = conn.cursor()
# SQL query to insert a record into the `users` table
insert_query = "INSERT INTO users (username, email) VALUES (?, ?)"
user_data = ('john_doe', 'john.doe@email.com')
# Execute the SQL query with data
cursor.execute(insert_query, user_data)
conn.commit() # save the changes
conn.close() # close the connection
Be careful because this code considers working on an already existing table. If you don't have a users table in your database, then you need to create one.
To avoid the error, you need to create a table in the database with the name users and fields username and email. Only after that can you add records to this table.
Swipe to start coding
- Write an SQL query to insert a new record into the
articlestable. The query should insert values into thetitle,content, andauthorcolumns. Store the query in the variableinsert_query. - Use the cursor method to execute the SQL query with the data stored in the
article_datavariable.
Solution
Thanks for your feedback!
single
Ask AI
Ask AI
Ask anything or try one of the suggested questions to begin our chat
Can you show me how to create the `users` table before inserting records?
What happens if I try to insert a record into a table that doesn't exist?
Can you explain what the placeholders (`?`) do in the SQL query?
Awesome!
Completion rate improved to 4.76Creation Operations
Swipe to show menu
Creation operations in SQLite involve adding new records to a database table. These operations allow you to populate your tables with data. Let's explore how insertion operations work within the context of database creation.
You've learned how to create tables in the previous section. Please be aware that the following code examples do not cover tables creation. This is because we are focusing on working with tables that have been previously created.
Inserting a Record
This code snippet uses the SQL INSERT INTO statement to add a new record to the "users" table, inserting values for the "username" and "email" fields. The data is passed as a tuple, and the query is executed with the execute() method to insert the values.
import sqlite3
# Connect to the database
conn = sqlite3.conn('my_database.db')
cursor = conn.cursor()
# SQL query to insert a record into the `users` table
insert_query = "INSERT INTO users (username, email) VALUES (?, ?)"
user_data = ('john_doe', 'john.doe@email.com')
# Execute the SQL query with data
cursor.execute(insert_query, user_data)
conn.commit() # save the changes
conn.close() # close the connection
Be careful because this code considers working on an already existing table. If you don't have a users table in your database, then you need to create one.
To avoid the error, you need to create a table in the database with the name users and fields username and email. Only after that can you add records to this table.
Swipe to start coding
- Write an SQL query to insert a new record into the
articlestable. The query should insert values into thetitle,content, andauthorcolumns. Store the query in the variableinsert_query. - Use the cursor method to execute the SQL query with the data stored in the
article_datavariable.
Solution
Switch to desktop for real-world practiceContinue from where you are using one of the options belowThanks for your feedback!
single
