Question

You cannot remove the table from the query once it is added

Answer 1

Explanation:

Delete column from an existing table. We will also understand the impact of removing a column with defined constraints and objects on it.

Introduction

In a relational database, we use the schema design technique Normalizations and split the large tables into smaller tables. It helps to reduce the redundancy and dependency of data. We have multiple normalization forms specified in the following image.

Different forms of Normalizations