请问大家嵌套表初始化有没有默认得初始化?
比如:type table_a is table of line%rowtype;
a table_a:=table_a(); //初始化可不可以不写a table_a:=table_a();
而直接写a table_a;如下:type table_a is table of line%rowtype;
a table_a; //是否默认初始化???
比如:type table_a is table of line%rowtype;
a table_a:=table_a(); //初始化可不可以不写a table_a:=table_a();
而直接写a table_a;如下:type table_a is table of line%rowtype;
a table_a; //是否默认初始化???
a table_a:=table_a();
上面得写法能不能达到初始化得目的??