Why does oracle 9i treat an empty string as null?
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am completed mca2011 how get certification in oracle
Explain what are the advantages of views?
What is meant by joins? List out the types of joins.
Difference between the “verify” and “feedback” command?
Explain the difference between a procedure and a function? What do you understand by those terms?
How to check the server version in oracle?
How to assign values to data fields in record variables?
what is the difference between table and veiw?
What is ceil and floor in oracle?
What is a user role in oracle?
Why we use bulk collect in oracle?
can anyone help me ? an index has been done on the primary key of a table. an update operation was performed on that table. now my question is 1> what abt the performance ? means faster or slower due to indexing ? 2> does the operation affect to the primary key constraint ?