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SQL Constraints

Introduction
NOT NULL constraint
Summary
8. Question

Instruction

Here's the quiz!

Exercise

The NGO needs our help with another table – this one is used for keeping track of NGO members:

CREATE TABLE member (
  id integer PRIMARY KEY,
  full_name varchar(64),
  joined date NOT NULL,
  quit date NOT NULL
);

Your task is to:

  1. Remove the NOT NULL constraint from the quit column.
  2. Add a NOT NULL constraint to the full_name column.