What's the difference between delete and truncate ?
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Define "correlated subqueries".
What are the five important software components of a database management system?
With DTS packaging I can store tables in Excel and convert them back to SQL. But once I copied tables to Excel I want to modify some info. How you do that without editing the Excel file?
What is inner join in database?
You loss one datafile and DB is running in ARCHIVELOG mode. You have full database backup of 1 week old and partial backup of this datafile which is just 1 day old. From which backup should you restore this file?
What are different relationships existing in database?
Define the following terms 19. (i) Database 20. (ii) Database Management System 21. (iii) Data Model 22. (iv) Scheme 23. (v) Data independence
Dept wise avrage salary
How to open the database in exclusive mode?
What are the advantages and disadvantages of views in the database?
Explain concurrency transparency.
List few disadvantages of file processing system.
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