📚✨ Dive into 25 tricky questions based on the Oracle Database Concepts and test your knowledge through query-based learning. Query Hub - Ask, Learn, and Excel!
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00:00 Unlocking Database Concepts
00:06 1. What is a database?
00:22 2. Which of the following is a type of database?
00:38 3. What does RDBMS stand for?
00:54 4. Which of the following is not a component of a relational database?
01:10 5. What ensures that no duplicate values are stored in a column?
01:26 6. Which key uniquely identifies each row in a table?
01:42 7. What is the purpose of normalization?
01:58 8. Which normal form eliminates duplicate columns from the same table?
02:14 9. What is a foreign key?
02:30 10. Which type of relationship does a foreign key define?
02:46 11. What is a candidate key?
03:02 12. What is a composite key?
03:18 13. Which of the following is an example of a DML operation?
03:34 14. What does the term "referential integrity" mean?
03:50 15. What is the purpose of a primary key?
04:04 16. Which of the following is a characteristic of a relational database?
04:22 17. What is an entity in the context of databases?
04:38 18. What is a tuple in a relational database?
04:54 19. Which SQL statement is used to create a table?
05:10 20. What is the difference between a primary key and a unique key?
05:26 21. Which of the following is true about relational databases?
05:42 22. What is a schema in a database?
05:58 23. What does ACID stand for in database context?
06:14 24. What is a database transaction?
06:30 25. Which command is used to remove a table from the database?
06:46 25. Thank You for Watching
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24 июл 2024
