Truncate is a DDL command, which has autocommit hence
cant be rolled back where as delete is DML with user commit
& roll back option. Truncate is faster then delete since it
wont store any data to backup tablespace. before delting.
What is the use of FILE option in IMP command?
What is use of LOG (Ver 7) option in EXP command?
Suppose if you look at a clock and the time is 315, what is the angle between the hour and the minute hands?
If you have a five-gallon jug and a three-gallon jug. You must obtain exactly four gallons of water. How will you do it?
If you are faced with two doors. One door leads to your job offer (that's the one you want!), and the other leads to the exit. In front of each door is a guard. One guard always tells the truth. The other always lies. You can ask one question to decide which door is the correct one. What will you ask?
Tell me how many gallons of white house paint are sold in the U.S. every year?
What is size of market for disposable diapers in China?
How many square feet of pizza are eaten in United States each month?
Would you estimate the weight of the Chrysler building?
Why are the manhole covers round?
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