Whichtwostatementsaretrueregardingviews?()

A.AsubquerythatdefinesaviewcannotincludetheGROUPBYclause B.AviewthatiscreatedwiththesubqueryhavingtheDISTINCTkeywordcanbeupdated C.AviewthatiscreatedwiththesubqueryhavingthepseudocolumnROWNUMkeywordcannotbeupdated D.Adatamanipulationlanguage(DML)operationcanbeperformedonaviewthatiscreatedwiththesubqueryhavingalltheNOTNULLcolumnsofatable

时间:2023-08-26 00:35:11

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