What is a subquery?
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why can't we assign not null constraint as table level constraint
What is the sql query to concatenate column values from multiple rows in oracle?
Does a Before form trigger fire when the parameter form is suppressed ?
What is connection pool in oracle?
What is SQL access advisor in Oracle?
Can a primary key contain more than one columns?
8. Display the client name and order date for all orders using the natural join keywords.
how to find count rows in table without count function?
What are triggers?Where are they used?
How to create a new view in oracle?
What is Trigger in Oracle?
Explain cascading triggers.