YouaremaintainingyourdatabaseinOracle10g.Youfindthatthenumberoflanguagesthatshouldbesupportedinyourdatabasehasincreased.ThecharactersetofyourdatabaseisUTF8.YoudecidetomigrateyourdatabasetotheAL16UTF16nationalcharacterset.HowwillyoumigrateyourdatabasefromUTF8toAL16UTF16？（）
A. byusingtheRMANutility
B. byusingtheexport/importutility
C. byusingtheALTERDATABASEcommand
D. byenablingthechangetrackingfeature
查看答案
毛泽东提出：国家的统一、人民的团结、国内各民族的团结，这是我们的事业必定要胜利的基本保证。（)
WhichtwostatementsaretrueregardingaPL/SQLpackagebody？（）
A. Itcannotbecreatedwithoutapackagespecification.
B. Itcannotinvokesubprogramsdefinedinotherpackages.
C. Itcancontainonlythesubprogramsdefinedinthepackagespecification.
D. Itcanbechangedandrecompiledwithoutmakingthepackagespecificationinvalid.
微信支付 
支付宝支付