What are the oracle DML commands possible through an update strategy?
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How to open a cursor variable?
t1 col1 col2 nishi 5000 lucky 6700 akash 7000 i want that a query that when i insert 7000 it will show me data already present and data will not insert. if data is not present it will insert.
What is an oracle function?
What is hash cluster in oracle?
How to rebuild an index in oracle?
What is the difference between substr and instr?
what are Triggers?
Why do you create or replace procedures rather that drop and recreate.
Give the Types of modules in a form?
Explain the use of constraints option in exp command.
I have query like this. select dept_id, max_mark from stude_dept where min_mark= (select min(mini_mark) from stud_dept); How can i optimize this query. Can anyone help me with it
What are the different approaches used by Optimizer in choosing an execution plan ?