Insert data into a table from anothe table in Oracle - oracle

Question

I have two equal Oracle tables which have same column names.
1) DoctorProfile_New
2) DoctorProfile_Old
Both tables share the same structure as follows.
DOCREGNO NOT NULL VARCHAR2(10)
DOCCATOGARY NOT NULL VARCHAR2(10)
ANAME1 VARCHAR2(50)
ANAME2 VARCHAR2(50)
ANAME3 VARCHAR2(50)
ANAME4 VARCHAR2(50)
ANAME5 VARCHAR2(50)
ANAME6 VARCHAR2(50)
ANAME7 VARCHAR2(50)
ANAME8 VARCHAR2(50)
ANAME9 VARCHAR2(50)
AGENDER VARCHAR2(2)
ARESCTOWN VARCHAR2(100)
DOCRCODE NUMBER
What I need to do is insert all the data from table DoctorProfile_Old to DoctorProfile_New.
The only difference is for the column DOCREGNO, I have to insert new hard coded value.
insert into DoctorProfile_New
(
DOCREGNO,
DOCCATOGARY,
ANAME1,
ANAME2,
ANAME3,
ANAME4,
ANAME5,
ANAME6,
ANAME7,
ANAME8,
ANAME9,
AGENDER,
ARESCTOWN
)
values
('000081',
(
select
DOCCATOGARY,
ANAME1,
ANAME2,
ANAME3,
ANAME4,
ANAME5,
ANAME6,
ANAME7,
ANAME8,
ANAME9,
AGENDER,
ARESCTOWN
from DoctorProfile_Old WHERE DOCREGNO='T07004'
)
)
I tried the above query and it always gives the Oracle error
ORA-00947: not enough values

Answer 1

You can use insert select to do this;
insert into DoctorProfile_New (
DOCREGNO,
DOCCATOGARY,
ANAME1,
ANAME2,
ANAME3,
ANAME4,
ANAME5,
ANAME6,
ANAME7,
ANAME8,
ANAME9,
AGENDER,
ARESCTOWN
)
select
'000081',
DOCCATOGARY,
ANAME1,
ANAME2,
ANAME3,
ANAME4,
ANAME5,
ANAME6,
ANAME7,
ANAME8,
ANAME9,
AGENDER,
ARESCTOWN
from DoctorProfile_Old
WHERE DOCREGNO='T07004';

Answer 2

How about this?
insert into DoctorProfile_New
(DOCREGNO,DOCCATOGARY,ANAME1,ANAME2,ANAME3,ANAME4,ANAME5,ANAME6,ANAME7,ANAME8,ANAME9,AGENDER,ARESCTOWN)
select '000081' as DOCREGNO, DOCCATOGARY,ANAME1,ANAME2,ANAME3,ANAME4,ANAME5,ANAME6,ANAME7,ANAME8,ANAME9,AGENDER,ARESCTOWN from DoctorProfile_Old WHERE DOCREGNO='T07004';
If you want to insert DOCREGNO automatically instead of hard coated value, you should create trigger and use sequence value.
CREATE OR REPLACE TRIGGER DoctorProfile_New_TRG
BEFORE INSERT OR UPDATE ON DoctorProfile_New
REFERENCING OLD AS OLD NEW AS NEW
FOR EACH ROW
BEGIN
if :new.DOCREGNO is null then
select lpad(some_sequence.nextval, 6, '0') into :new.DOCREGNO from dual;
end if;
END;
Insert all data from DoctorProfile_Old
insert into DoctorProfile_New
(DOCREGNO,DOCCATOGARY,ANAME1,ANAME2,ANAME3,ANAME4,ANAME5,ANAME6,ANAME7,ANAME8,ANAME9,AGENDER,ARESCTOWN)
select null,DOCCATOGARY,ANAME1,ANAME2,ANAME3,ANAME4,ANAME5,ANAME6,ANAME7,ANAME8,ANAME9,AGENDER,ARESCTOWN from DoctorProfile_Old;