我试图朗姆酒这个过程，但看起来像它不会comile

Question

create or replace procedure nestedTableColumnDemo is 
    --i have tried to create netsed table 
    TYPE address_nest1 is TABLE OF varchar2(50);  

    --using varchar i tried to create a table but it gives an error i have no idea why. 
    var1 varchar2(100); 
begin 

    --this is where i created the table using a variable var1 
    var1:='create table customer_info(name varchar2(50),postal_address address_nest1) nested table postal_address store as postal_address_tab';   
    execute immediate var1; 

end nestedTableColumnDemo; 

execute nestedTableColumnDemo; 

当我尝试执行此它显示一个错误，但没有创建表。

Answer 1

CREATE OR REPLACE TYPE address_nest1 IS TABLE OF VARCHAR2(10) 
/ 

create or replace procedure nestedTableColumnDemo is --i have tried to create netsed table 
    var1 varchar2(200);--using varchar i tried to create a table but it gives an error i have no idea why. 
    begin 
    var1:='create table customer_info 
    (name varchar2(50), 
    postal_address address_nest1) 
    nested table postal_address store as postal_address_tab'; --this is where i created the table using a variable var1 
    execute immediate var1; 

    end nestedTableColumnDemo; 
    /

    execute nestedTableColumnDemo; 
    /

This Works。