What is your level of experience with SQL? Basic operations or more complex tasks?

The level of SQL proficiency can range from basic operations — such as SELECT, INSERT, UPDATE, DELETE — to more complex tasks, including:

• Query and index optimization
• Use of window functions
• Writing complex JOINs and subqueries
• Transactions and lock management
• Creating and using stored procedures and triggers

Depending on the project and requirements, both basic and advanced SQL skills may be necessary.