1: What are the limitations of using views in SQL?
2: How do you update data in a view?
3: What is a schema, and how do you manage schemas in SQL?
4: How do you use the CREATE SCHEMA statement?
5: What is the difference between a schema and a database?
6: How do you implement database security in SQL?
7: What is the purpose of user roles in SQL?
8: How do you grant and revoke permissions in SQL?
9: What is the GRANT command used for?
10: How do you implement row-level security in SQL?
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