Database Insertion and Optimization Quiz

What is the primary purpose of the INSERT command in databases?

• To delete data from a table

• To update existing data

• To create a new database

• To add new data to a table

Which table in the Chitter database contains user information?

• comment

• chitter_user

• follower

• post

What is the role of the user_id column in the chitter_user table?

• It stores the user's email

• It is an auto-generated primary key

• It contains the user's password

• It records the date the user joined

When using the INSERT INTO statement, what must match the order of the columns?

• The data types

• The table name

• The order of the data

• The primary key

What happens if you do not provide values for all fields when inserting data?

• The fields will be filled with NULL

• The insertion will fail

• The fields will be filled with default values

• The database will generate random values

How can you insert multiple rows in a single query using the INSERT INTO statement?

• By using colons

• By using periods

• By using commas

• By using semicolons

What is the advantage of using a single query to insert multiple rows?

• It automatically updates existing rows

• It allows for more complex data types

• It reduces the number of queries needed

• It is slower but more reliable

Which programming language and database are used in the demonstration for inserting 10,000 posts?

• Python and Postgres

• Java and MySQL

• C++ and Oracle

• Ruby and SQLite

What module is used to interact with the Postgres database in the demonstration?

• sqlalchemy

• psycopg2

• sqlite3

• pymysql

What was the result of comparing single row insertion to a single large query?

• Single row insertion was faster

• Both methods had the same speed

• The large query was slightly slower

• The large query was over 20 times faster