I don't know how I can return all attributes with the RETURNING clause
I want something like this:
DECLARE
v_user USER%ROWTYPE
BEGIN
INSER开发者_StackOverflowT INTO User
VALUES (1,'Bill','QWERTY')
RETURNING * INTO v_user;
END;
RETURNING * INTO
gets an error , how can I replace *
?
It would be neat if we could do something like that but alas:
SQL> declare
2 v_row t23%rowtype;
3 begin
4 insert into t23
5 values (my_seq.nextval, 'Daisy Head Maisy')
6 returning * into v_row;
7 end;
8 /
returning * into v_row;
*
ERROR at line 6:
ORA-06550: line 6, column 19:
PL/SQL: ORA-00936: missing expression
ORA-06550: line 4, column 5:
PL/SQL: SQL Statement ignored
SQL>
I believe there may be a logged change request for this feature, because I know lots of people want it. But for the moment all we can do is the long-winded specification of every column:
SQL> declare
2 v_row t23%rowtype;
3 begin
4 insert into t23
5 values (my_seq.nextval, 'Daisy Head Maisy')
6 returning id, person_name into v_row;
7 end;
8 /
PL/SQL procedure successfully completed.
SQL>
Bad news if you have a lot of columns!
I suspect the rationale is, most tables have relatively few derived columns (sequence assigned to an ID, sysdate assigned to a CREATED_DATE, etc) so most values should already be known (or at least knowable) to the inserting process.
edit
I was care how returning all attributes without long-winded specification of every column ;) Maybe it's impossible.
I thought I had made it clear, but anyway: yes currently it is impossible to use *
or some similar unspecific mechanism in a RETURNING clause.
So far the best solution I believe could be:
DECLARE
v_user USER%ROWTYPE;
rowid_v rowid;
BEGIN
INSERT INTO User
VALUES (1,'Bill','QWERTY')
RETURNING ROWID INTO rowid_v;
SELECT * INTO v_user WHERE rowid = rowid_v ;
END;
https://oracle-base.com/articles/misc/dml-returning-into-clause
Unfortunately, still there is no such functionality as returning * or returning row :) but will be cool.
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