单项选择题

A、UPDATEJSSETJBGZ=JBGZ+10%WHEREGZRQ>=30
B、UPDATEJSSET
JBGZ=JBGZ*110%WHEREYEAR(DATE())-YEAR(GZRQ)>=30
C、UPDATEJSSETJBGZ=JBGZ*1.1WHEREYEAR(DATE())-YEAR(GZRQ)>=30
D、UPDATEJSSETJBGZ=JBGZ*1.1WHEREGZRQ>=30