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A. DATA DEFINITION LANGUAGE Data Definition Language (DDL) is a subset of SQL used to define and manage the structure of database objects, such as tables, indexes, and schemas, including creating, altering, and deleting these objects. B. INTERACTIVE DATA MANIPULATION LANGUAGE Interactive Data Manipulation Language (IDML) is a part of SQL that lets you interact with and manage the data in a database. It includes commands that allow you to retrieve data, add new data, change existing data, and remove data. The SELECT command is used to get data from the database, like asking the database a question and getting an answer back. The INSERT command adds new data into the database, similar to putting new information into a file. The UPDATE command changes existing data in the database, like editing a file to update some information. The DELETE command removes data from the database, similar to erasing information you no longer need. In essence, IDML is all about how you can work with the info...

What is SQL? SQL stands for Structured Query Language. It's a standard programming language used for managing and manipulating databases. With SQL, you can perform various tasks such as querying data, inserting new records, updating existing records, and deleting records from a table. Additionally, you can create and modify the structure of the database, including tables, indexes, and views. SQL is crucial for anyone who needs to interact with databases, like database administrators, developers, and data analysts.