Why am I getting this error message in SQL Developer-ORA-01735: invalid ALTER TABLE OPTION?

Question

To Whom it may Concern,
I am attempting to add two columns Comm_id and Ben_id to a table in SQL Developer (Oracle).
Here is the syntax I am using:
ALTER TABLE ACCTMANAGER
ADD (Comm_id NUMBER(10)),
Ben_id VARCHAR(2);
The spool file I'm getting as a result of the script above:
Error starting at line 1 in command:
ALTER TABLE ACCTMANAGER
ADD (Comm_id NUMBER(10)),
Ben_id VARCHAR(2)
Error report:
SQL Error: ORA-01735: invalid ALTER TABLE option
01735. 00000 -  "invalid ALTER TABLE option"
*Cause:   
*Action:
DESC acctmanager
Thank you in advance.

Answer 1

4b60e01f-2ea5-40fe-a161-fc12d38d09e5 wrote:
To Whom it may Concern,
I am attempting to add two columns Comm_id and Ben_id to a table in SQL Developer (Oracle).
Here is the syntax I am using:
ALTER TABLE ACCTMANAGER
ADD (Comm_id NUMBER(10)),
Ben_id VARCHAR(2);
The spool file I'm getting as a result of the script above:
Error starting at line 1 in command:
ALTER TABLE ACCTMANAGER
ADD (Comm_id NUMBER(10)),
Ben_id VARCHAR(2)
Error report:
SQL Error: ORA-01735: invalid ALTER TABLE option
01735. 00000 -  "invalid ALTER TABLE option"
*Cause:  
*Action:
DESC acctmanager
Thank you in advance.
try as below instead
ALTER TABLE ACCTMANAGER
ADD (Comm_id NUMBER(10), Ben_id VARCHAR(2));