How to find size of a data type in pl/sql (oracle 9i)?

Question

I want to find the size of any data type in pl/sql,for eg DECLARE x boolean;

I want to find size of like X,is there any function like (sizeof() in C) or any how i can find it.Please let me know!

Answer 1

查找vsize（）-我不知道它是否存在于某些版本的Oracle（从Google搜索来看10g及以上），尽管它是否存在于Oracle 9。