The various DDL commands that are used to redefine the tables will be covered in this tutorial. Truncate Query: TRUNCATE…
The ALTER command is a DDL command that can be used to change the structure of existing tables in the…
SQL Data Types are an important component of the attributes present in the tables, as well as the queries used…
The SQL CREATE command is a type of DDL command that is primarily used for creating databases and tables. To…
A programming language called SQL (Structured Query Language) was created specifically for managing and modifying relational databases. It offers a…
What is 5NF? The fifth normal form, or 5NF, is also called the project-join normal form. If a relation is…
What is 4NF? A level of database normalisation known as the fourth normal form (4NF) is one in which a…
What is BCNF? The Boyce-Codd Normal Form also referred to as the 3.5 Normal Form, is an extension of the…
What is Third Normal Form? The third step in Normalization is 3NF. For a table to be in third normal…
What is 2NF? The second step in Normalization is 2NF. A table must meet two requirements to be in the…