Write a trigger example in oracle?
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What is merge in oracle?
List out the types of joins.
What is the use of aggregate functions in oracle?
What is data file?
Which is better Oracle or MS SQL? Why?
3. Adapt your query in (2) above so that only post codes with more than twenty orders are displayed.
What is the use of file param in imp command?
how to retrieve data from different tables ,place this data in different excel worksheets.
How do you recover a datafile that has not been physically been backed up since its creation and has been deleted. Provide syntax example.
What the is the diff between local index and global index. give some example.
One Table having two rows with one colomn having values Like"Male" and "Female". how to upadte these values Like "Female" and "Male" in single update statement.
What is the fastest query method to fetch data from the table?