What are the types of optimization?
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How do you delete duplicates in sql query using rowid?
What is the difference between database trigger and stored procedure?
What is INSTEAD OF trigger ?
What is sql deadlock?
What is flag in sql?
Explain what is a database?
How to read/write files from pl/sql?
What is the use of cursor ? how cursor allocate context area for executing the sql statement?
What is Primary Key?
What is difference between sql and mysql?
Is pl sql useful?
what is a control file ? : Sql dba