SQL> -- CASE 1
SQL>select nest_test.id.num from nest_test;
select nest_test.id.num from nest_test
*
ERROR at line 1:
ORA-00904: "NEST_TEST"."ID"."NUM": invalid identifier
SQL> -- CASE 2
我在我的代碼中的一些UDT(用戶定義的類型)(的PostgreSQL 9.2) create type pairs_t as (keyname varchar, e_value varchar);
create type values_t as (e_values varchar[]);
create type allvalues_t as (regions values_t, product
我想創建一個訪問表類型的Oracle對象的Oracle包。 CREATE OR REPLACE TYPE t_dept_avg_rec AS OBJECT(
dept number,
age number
)
CREATE OR REPLACE TYPE t_dept_avg_tab IS TABLE OF t_dept_avg_rec
將少量記錄插入上述對象類型表中