Create database — Python Technical Interview Questions & Answers

Create database

Create database

  • Create database is about talking to a database from Python. Pattern is always: connect → cursor → execute → fetch or commit → close.
  • For Create database: use ? placeholders (or the driver’s params). Never build SQL with + user text — that is injection. sqlite3 is in the stdlib for practice; MySQL/Mongo need a driver.
  • Create database on the board: insert Asha, select her back, print the name. Same idea on MySQL. Close the connection.
  • Output: database ready. CREATE DATABASE school on MySQL is the same idea.

Technical Interview Tip: Steps in order: connect → execute → fetch/commit → close. Mention placeholders.

Code Examples for Create database

Example

# Create database
import sqlite3
con = sqlite3.connect(":memory:")
con.execute("attach ':memory:' as school")
print("database ready")
con.close()

Output: database ready. CREATE DATABASE school on MySQL is the same idea.

How to Explain Create database to an Interviewer

Explain Create database as if you are teaching a junior — definition, then one tiny script.

Create database uses connect + cursor + SQL/API. Create database — parameterized queries. Never + user text into SQL.

What does the example print, and why?

database ready

What mistake do freshers make with Create database?

Create database — commit after write. close when done.