Excel import error with NCHAR field on v1.2.1

Question

Hi, we've tried to import data from Excel to an Oracle table (10g) using SQL Developer 1.2.1. However it failed with the following error in Log Window:
ORA-00917: missing comma
Further checking revealed that one field in Oracle table was defined as NCHAR, while the generated DML value was without quote:-
insert into test_table (field1,field2) VALUES(123,1B);
When we replaced the '1B' value to numeric value 11, the import worked. As we're using an application package, we cannot simply modify the table/field's attribute from NCHAR to CHAR. Is there a way to configure SQL Developer that will have the quote placed like:-
insert into test_table (field1,field2) VALUES(123,'1B');
which works fine in SQL Developer Query mode.
Please advise, thanks :)

Answer 1

Note and thanks for handling and fixing this issue.
Furthermore to the import function, we also noted that the default setting cannot fit to inserting data with Chinese (or Double Byte) characters, we will need to add a "N" as a prefix, e.g.:-
insert into table_a (field_a, field_b) values(123, N'一二三')
If "N" is missing, field_b will only contains garbage.
As we notice that the import will generate insert statements, please see if you can include this problem as part of the "missing quote" fix, thanks.