What are the two virtual tables available at the time of database trigger execution?
What is the difference between nvl function, ifnull function, and isnull function?
What is database white box testing and black box testing?
Can a view be updated/inserted/deleted?If Yes under what conditions?
Is sql the best database?
What is the purpose of using pl/sql?
What are the advantages of sql?
What is normalization? dec 2009
check whether all the emp numbers are indeed unique.
How many scalar data types are supported in pl/sql?
What are sql functions? Describe in brief different types of sql functions?
Are left and right joins the same?
What do you mean by field in sql?