View Usage Best Practices

View Usage Best Practices is a SQL statement in the Views category. Views should be used as security layers, abstraction tools, and query simplifiers — not as a substitute for proper queries. The syntax is -- Best practices for using views in production databases.. It returns best practices. A typical example: -- DO use views for: -- 1. Row-level security (restrict rows per user) -- 2. Column-level security (hide sensitive columns) -- 3. Query simplification (complex joins) -- 4. Backward compatibility (renamed tables) -- AVOID: -- 1. Nesting views (view on view on view) — performance nightmare -- 2. Views that join 20+ tables — impossible to optimize -- 3. SELECT * IN views — column changes break things -- 4.… A close relative is CREATE VIEW, which creates a virtual table based on a SELECT query. Think of it as a saved query that acts like a table.