Dbms_datapump in PL/SQL- the file dump deleted after session disconnect

Question

Hi all
I create test procedure to exp and imp table to dump file, it done but when I close session ( relogin to plsql developer to other schemas) the dump file is automatic deleted. how can to make dbms_datapump do not auto delete dump file when session disconnect.
declare
handle1 NUMBER;
handle2 number;
name1 VARCHAR2(30);
name2 VARCHAR2(30);
jobState user_datapump_jobs.state%TYPE;
begin
name1:='abc_tbl1'|| to_char(SYSDATE,'YYYYMMDDHH24MI')||'.dmp';
name2:='abc_tbl2'|| to_char(SYSDATE,'YYYYMMDDHH24MI')||'.dmp';
handle1 := dbms_datapump.open('EXPORT','TABLE');
dbms_datapump.add_file(handle1,name1,'DUMP');
dbms_datapump.metadata_filter(handle1,'SCHEMA_EXPR','IN (''ABC'')');
dbms_datapump.metadata_filter(handle1,'NAME_EXPR','IN (''abc_tbl1'')');
dbms_datapump.set_parallel(handle1,4);
dbms_datapump.start_job(handle1,0);
dbms_datapump.detach(handle1);
end;
thank

Answer 1

Thank for your help, I fixed this one, just change code like this :)
declare
handle1 NUMBER;
handle2 number;
name1 VARCHAR2(30);
name2 VARCHAR2(30);
jobState user_datapump_jobs.state%TYPE;
r_stat1 VARCHAR2(1);
r_stat2 VARCHAR2(1);
date1 DATE;
date2 DATE;
fcc_date DATE;
begin
--take name of dump
name1:='abc_tbl1'|| to_char(SYSDATE,'YYYYMMDDHH24MI')||'.dmp';
name2:='abc_tbl2'|| to_char(SYSDATE,'YYYYMMDDHH24MI')||'.dmp';
---take the date
handle1 := dbms_datapump.open('EXPORT','TABLE');
dbms_datapump.add_file(handle1,'lampp.log','DUMP',NULL,dbms_datapump.ku$_file_type_log_file);
dbms_datapump.add_file(handle1,name1,'DUMP');
dbms_datapump.metadata_filter(handle1,'SCHEMA_EXPR','IN (''ABC'')');
dbms_datapump.metadata_filter(handle1,'NAME_EXPR','IN (''ABC_TBL1'')'); --- input with upper character
dbms_datapump.set_parallel(handle1,4);
dbms_datapump.start_job(handle1,0,0);
dbms_datapump.wait_for_job(handle1, jobState);
dbms_datapump.detach(handle1);
end;