I've been using PL/SQL for 10years in my work but never really learned the 1,2,3 ways of tuning PL/SQL or learning what is more effecient code over other code... (ex: BULK COLLECT verses regular cursor)
What is the best, quickest way to start getting the needed knowledge in these areas?
Maybe an awesome PL/SQL tutorial?
Link to How to use an Explain Plan?
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Subquery in Oracle:
Sub queries are one of advance queries in oracle.
Types of advance queries:
• Sub Queries
• Hierarchical Queries
• Set Operators
Sub queries are know as the query called from another query or another subquery. It can …