Drop Database — SQL Technical Interview Questions & Answers

Drop Database

Drop Database

  • DROP DATABASE college; deletes the database and every table inside it. There is no recycle bin. This is why interviews ask you to be scared of DROP.
  • DROP DATABASE IF EXISTS college; is the script form — no error if it is already gone. Take a dump first if the data matters: mysqldump college > college.sql
  • Trap: DROP DATABASE on the production name because you meant DROP TABLE. Type the full name slowly. Workbench often asks to confirm — read the name.
  • On the example next to this theory: Drop Database — cREATE DATABASE makes a schema; USE selects it for following statements.

Technical Interview Tip: DROP is permanent. Prefer IF EXISTS. Dump before you drop real data.

Code Examples for Drop Database

Drop Database — sample query

-- Database admin (MySQL syntax; run on MySQL server)
-- CREATE DATABASE shop;
-- USE shop;
-- SHOW DATABASES;
SELECT 'Use CREATE/USE/SHOW on MySQL server' AS tip;

Drop Database — cREATE DATABASE makes a schema; USE selects it for following statements.

How to Explain Drop Database to an Interviewer

Is DROP DATABASE reversible?

No recycle bin Restore only from backup / dump