是否可以加入Oracle表值函数?
SELECT
*
FROM
SOME_TABLE a
INNER JOIN
TABLE(GET_TABLE_LIST()) b ON = a.COL_A = b.COL_A
答案 0 :(得分:11)
你可以,是的。由于我没有get_TrfrmEngMachineInfoT
函数,我将创建自己的集合并将其加入EMP
架构中的SCOTT
表
SQL> create or replace type typ_person
2 as object (
3 person_id number,
4 person_name varchar2(30)
5 );
6 /
Type created.
SQL> create or replace type tbl_person
2 as table of typ_person;
3 /
Type created.
SQL> ed
Wrote file afiedt.buf
1 create or replace function get_person_list
2 return tbl_person
3 is
4 l_people tbl_person;
5 begin
6 select typ_person( empno, ename )
7 bulk collect into l_people
8 from emp;
9 return l_people;
10* end;
SQL> /
Function created.
SQL> select p.*
2 from emp e
3 join table( get_person_list() ) p on (p.person_id = e.empno);
PERSON_ID PERSON_NAME
---------- ------------------------------
7623 PAV
7369 smith
7499 ALLEN
7521 WARD
7566 JONES
7654 MARTIN
7698 BLAKE
7782 CLARK
7788 SCOTT
7839 KING
7844 TURNER
7876 ADAMS
7900 SM0
7902 FORD
7934 MILLER
1234 FOO
16 rows selected.
答案 1 :(得分:0)
也许这对你有用......
SELECT table_name.*, myFunc(table_name.OBJID) as new_field_name from table_name
这将从table_name
表中选择所有内容,并将函数的结果添加到新集中。
myFunc
使用table_name.OBJID
字段来匹配某些记录并执行任何操作...
答案 2 :(得分:0)
SELECT a.*, b.*
from table_name a cross join table ( myFunc(a.id) ) b