Which statement describes the effect on an index， when the indexed column for the rows is updatedin the base table（）
A、AAnupdateinaleafrowtakesplace.
B、BTheindexbecomesinvalidaftertheupdate.
C、CTheleafblockcontainingtherowtobeupdatedismarkedasinvalid.
D、DArowintheleafblockoftheindexforthekeyvalueislogicallydeletedandanewleafrowisinserted
发布时间：2024-09-26 08:54:27
