Efficient Function Calls From SQL (Part 1) : Scalar Subquery Caching

Efficient Function Calls From SQL (Part 2) : The DETERMINISTIC Hint

Efficient Function Calls From SQL (Part 3) : PL/SQL Function Result Cache

Efficient Function Calls From SQL (Part 4) : Scalar Subquery Caching vs PL/SQL Function Result Cache

Efficient Function Calls From SQL (Part 5) : Pipelined Table Functions

Efficient Function Calls From SQL (Part 6) : Function-Based Indexes