Lookup on source side

Question

Newbie to goldengate, so please excuse
I need to replicate some columns from table emp on database A to table emp on database B
Assume Table emp structure:
empid,ename,deptid
On the same database I have dept table
deptid, deptname
On target emp structure
ename,deptname
Now i need define to extract process for table emp, It has to lookup for deptname from dept table. And the replicat process should be able to populate emp structure on target.

Answer 1

This is what i have tried:
EMP1.SQL is the name of the file generated using defgen utility as there is difference in structure in source and target. Naming convention of the sql does it matter?
replicat process is abending with table or view does not exist.
extract extemp
userid ggsowner,password ggsowner
TRANLOGOPTIONS ASMUSER sys@ASM, ASMPASSWORD test EXCLUDEUSER ggsowner
targetdefs ./dirsql/emp1.sql
rmthost test,mgrport 7809
rmttrail /oracle/gg/dirdat/er
table scott.emp;
table scott.dept;
replicat erp1
userid ggsowner, password ggsowner
sourcedefs ./dirsql/emp1.sql
map scott.emp, scott. webpos.emp_tar, &
sqlexec (ID d1, &
QUERY " select deptname from dept where deptid = :v_dept_id",&
PARAMS (v_dept_id = deptid)),&
COLMAP (USEDEFAULTS,ename=ename,deptid=deptid,deptname = @GETVAL(d1.deptname));
reperror (DEFAULT, EXCEPTION)
INSERTALLRECORDS
map scott.emp , target ggsowner.exceptions,
exceptionsonly,
colmap (rep_name = "RTARGET1"
,table_name = @GETENV ("GGHEADER", "TABLENAME")
,errno = @GETENV ("LASTERR", "DBERRNUM")
, dberrmsg = @GETENV ("LASTERR", "DBERRMSG")
, optype = @GETENV ("LASTERR", "OPTYPE")
, errtype = @GETENV ("LASTERR", "ERRTYPE")
, logrba = @GETENV ("GGHEADER", "LOGRBA")
, logposition = @GETENV ("GGHEADER", "LOGPOSITION")
, committimestamp = @GETENV ("GGHEADER", "COMMITTIMESTAMP")
, beforeafter = @GETENV ("GGHEADER", "BEFOREAFTERINDICATOR"));