DB2 to Oracle 11g migration

Question

Hi,
We are migrating the siebel database from DB2 to Oracle 11g.
While doing the migration, the following values are found for the siebel related tables on DB2.
for example:
CREATE TABLE S_SERVICE_SCRPT (
ROW_ID NVARCHAR2(15) NOT NULL,
CREATED TIMESTAMP(9) DEFAULT CURRENT TIMESTAMP NOT NULL,
CREATED_BY NVARCHAR2(15) NOT NULL,
LAST_UPD TIMESTAMP(9) DEFAULT CURRENT TIMESTAMP NOT NULL,
LAST_UPD_BY NVARCHAR2(15) NOT NULL,
MODIFICATION_NUM DECIMAL DEFAULT 0 NOT NULL,
CONFLICT_ID NVARCHAR2(15) DEFAULT gx'00030' NOT NULL,
NAME NVARCHAR2(75) NOT NULL,
PROG_LANG NVARCHAR2(30) NOT NULL,
REPOSITORY_ID NVARCHAR2(15) NOT NULL,
Please can anybody provide inputs how to get the equivalent for these gx___ values on Oracle 11g.
Many thanks in advance

Answer 1

Found a suitable link at IBM:
http://publib.boulder.ibm.com/infocenter/dzichelp/v2r2/index.jsp?topic=/com.ibm.db29.doc.sqlref/db2z_sql_declareglobaltemptable.htm
gx is the hexadecimal graphic string constant - which is similar to our unistr function.
Not sure which character is representated by 00030, but here's a method you can use to simply figure out the Oracle equivalent code point.
First you need to figure out the DB2 character represented by the default value - let's assume it is '@'
Assuming the NCHAR character set is UTF8 and the NLS character set is WE8MSWIN1252, then you can execute:
select ascii('@') from dual;
ASCII('@')
64
in SQL*Plus and you'll get the code point 64.
Convert the 8bit code point to unicode using:
SQL> select dump(convert(chr(64),'UTF8','WE8MSWIN1252'),16) from dual;
DUMP(CONVERT(CH
Typ=1 Len=1: 40
and you can create the table with the default value represented by the hex value 0040:
SQL> create table abc (col1 varchar2(20) default '@',
2 col2 nvarchar2(20) default unistr('\0040'));
Table created.
SQL> insert into abc values (default,default);
1 row created.
SQL> select * from abc;
COL1 COL2
@ @