日期:2014-05-17  浏览次数:20810 次

字符串“7.2085E+10”如何转化为number
见题目

------解决方案--------------------
select to_number(substr('7.2085E+10',1,instr('7.2085E+10','E',1)-1) ) *
power(10,to_number(substr('7.2085E+10',instr('7.2085E+10','+',1)))) from dual