Why do we need unique key in a table?
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what is cursor and its type, what is ref cursor write a syntax to pass ref cursor into procedure out fucntion and call the procedure
How can you save or place your msg in a table?
How can we find duplicate records in a table?
- Types of triggers - View - Dcl - Procedures, packages, functions - Metasolve - Can use Dcl in triggers - package case study - Cursor and its types - triggers schedule - Wrap - Why we are using fetch and for in cursor. difference?
How are sql commands classified?
What are the built in functions of sql?
Explain the difference between rename and alias?
i have doubt that any one tell ref cursor comes in sql pl/sql? pls clarify?
What are the features of pl sql?
What is the main reason behind using an index?
What is a 'instead of trigger'?
Why do we go for stored procedures?
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