?? Day 2: Mastering SQL ??

?? Day 2: Mastering SQL ??

Another day, another deep dive into the fascinating world of SQL! ??

Today, I explored the different types of languages in SQL and their specific use cases. Here’s a quick summary of what I covered:

?? Types of SQL Languages:

1. DDL (Data Definition Language):

- Use Case: Defines the structure of the database, including tables, indexes, and constraints.

- Examples: CREATE, ALTER, DROP.

2. DML (Data Manipulation Language):

- Use Case: Handles the manipulation of data within the database.

- Examples: SELECT, INSERT, UPDATE, DELETE.

3. DCL (Data Control Language):

- Use Case: Manages access permissions and controls to the database.

- Examples: GRANT, REVOKE.

4. TCL (Transaction Control Language):

- Use Case: Manages transactions in the database, ensuring data integrity.

- Examples: COMMIT, ROLLBACK, SAVEPOINT.

Understanding these languages and their specific functions is crucial for effective database management and data manipulation. Each type of SQL language serves a unique purpose, contributing to the overall efficiency and security of database operations.

Looking forward to continuing this learning journey and sharing more insights along the way. Stay tuned for more updates!

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