1. Workbench Data Definition Language (DDL)
Data Management
Workbench
Data Definition Language (DDL)

2. Data Definition Language (DDL)
CREATE
ALTER
DROP

3. CREATE Statement

4. INSERT INTO
Read: ‘1’
Compare and discuss CREATE Statement in previous page

5. INSERT INTO
Read: ‘ ’
Compare and discuss CREATE Statement in previous page

6. ALTER Statement
Add new column

7. ALTER Statement
Add new column

8. ALTER Statement

9. ALTER Statement

10. ALTER Statement

11. ALTER Statement

12. 2.
ALTER Statement 1.
After run SQL
major_id for new record = 1

13. ALTER Statement 2. 1.
After run SQL
major_id for new record = ?

14. DROP Statement
The DROP TABLE statement is used to delete a table.

15. The DROP DATABASE statement is used to delete a database.

16. The TRUNCATE TABLE Statement
If we only want to delete the data inside the table, and not the table itself? Then, use the TRUNCATE TABLE statement:

17. The TRUNCATE TABLE Statement1. 2. 3.
delete the data inside the table

18. References https://www.youtube.com/watch?v=X_umYKqKaF0