摘要:
Extend 扩展元素的个数,且在使用下标时,只能到1到这个整个个数的范围:CREATE or replace type list_of_name is table of varchar2(1000);declarehappyfamily list_of_name:=list_of_name();--必须在使用的时候初始化,此处初始化为一个空元素,此处若不初始化,必须在体部初始化children ... 阅读全文
摘要:
例:declaretype list_of_names is table of scott.emp.ename%type index by binary_integer;s_name list_of_names;l_row binary_integer;begins_name(11):='a1';s_name(2):='a2';s_name(3):='a3';s_name(4):='a4';s_n... 阅读全文