Question

What type of languages known for hierarchical dbms?

Answer 1

DDL is used for specifying the database schema. Let’s take SQL for instance to categorize the statements that comes under DDL.

To create the database instance – CREATETo alter the structure of database – ALTERTo drop database instances – DROPTo delete tables in a database instance – TRUNCATETo rename database instances – RENAME

All these commands specify or update the database schema that’s why they come under Data Definition language.