Column Order Execute Immediate

Question

I am trying to alter a table to add columns in a specific order. When I run the below statement, it always makes the first column (ORA_ERR_NUMBER$) the last column in the actual order of the table. Why is this? Some kind of bug?
create procedure test
as
sqlstmt varchar2(2000);
BEGIN
sqlstmt := 'ALTER TABLE test.ERR$_F00165 ADD (ORA_ERR_NUMBER$ NUMBER, ORA_ERR_MESG$ VARCHAR2(2000 BYTE), ORA_ERR_ROWID$ UROWID(4000), ORA_ERR_OPTYPE$ VARCHAR2(2 BYTE), ORA_ERR_TAG$ VARCHAR2(2000 BYTE))';
EXECUTE IMMEDIATE sqlstmt;
END;

Answer 1

Purge recyclebin doesn't help. Not sure what else it could be. I don't think it has anything to do with my script but it is below for reference.
create or replace
procedure Merge811_sp
AUTHID CURRENT_USER
as
sqlstmtC varchar2(2000);
sqlstmtI varchar2(2000);
sqlstmtL varchar2(2000);
sqlstmtCnt varchar2(2000);
sqlstmtCnt2 varchar2(2000);
sqlstmtLOB varchar2(2000);
sqlstmtLOBCat varchar2(2000);
sqlstmtLOBCat2 varchar2(2000);
sqlstmtLOBCat3 varchar2(2000);
CountVar number;
CountVar2 number;
LOBCommaList varchar2(2000);
BEGIN
declare
cursor c8 is
--select src and dest tables where table group is 2 and active = Y
select TABLE_NAME, TABLE_SRC_SCHEMA, TABLE_DEST_SCHEMA
from testschema.TEST_TABLES where TABLE_ACTIVE = 'Y'
and TABLE_GROUP = 2
order by TABLE_NAME;
begin
for r_c8 in c8 loop
BEGIN
sqlstmtCnt := 'select count(*) into :CountVar from dba_tables where table_name = ''ERR$_'||r_c8.TABLE_NAME||''' and owner = '''||r_c8.TABLE_DEST_SCHEMA||''';';
EXECUTE IMMEDIATE 'BEGIN '||sqlstmtCnt||' END;' USING OUT CountVar;
--If error table does not exist.......
IF CountVar = 0
THEN
sqlstmtCnt2 := 'select count(*) into :CountVar2 from dba_tables a join dba_tab_columns b ON a.table_name = b.table_name and a.owner = b.owner
where a.table_name = '''||r_c8.TABLE_NAME||''' and
a.owner = '''||r_c8.TABLE_SRC_SCHEMA||''' and b.DATA_TYPE in (''BLOB'', ''CLOB'', ''LONG'', ''LONG RAW'', ''NCLOB'');';
--dbms_output.put_line(sqlstmtCnt2);
EXECUTE IMMEDIATE 'BEGIN '||sqlstmtCnt2||' END;' USING OUT CountVar2;
--If no LOB or LONG data types, create error table and insert data with logging
IF CountVar2 = 0
THEN
sqlstmtC := 'DBMS_ERRLOG.create_error_log (dml_table_name => '''||r_c8.TABLE_DEST_SCHEMA||'.'||r_c8.TABLE_NAME||''');';
--dbms_output.put_line(sqlstmtC);
EXECUTE IMMEDIATE ('BEGIN '||sqlstmtC||' END;');
--commit;
sqlstmtI := 'INSERT INTO '||r_c8.TABLE_DEST_SCHEMA||'.'||r_c8.TABLE_NAME||' SELECT * FROM '||r_c8.TABLE_SRC_SCHEMA||'.'||r_c8.TABLE_NAME||' LOG ERRORS INTO '||r_c8.TABLE_DEST_SCHEMA||'.ERR$_'||r_c8.TABLE_NAME||' (''811UPGRADE_Grp2'') REJECT LIMIT UNLIMITED;';
--dbms_output.put_line(sqlstmtI);
EXECUTE IMMEDIATE('BEGIN '||sqlstmtI||' END;');
commit;
END IF;
--If LOB or LONG data types exist, create error table without them and then insert with logging 
IF CountVar2 > 0
THEN
sqlstmtLOB := 'SELECT LTRIM(SYS_CONNECT_BY_PATH(myvalues, '''||','||'''),'''||','||''') into :LOBCommaList
FROM (SELECT myvalues, ROW_NUMBER() OVER (ORDER BY myvalues) rn, COUNT(*) OVER () cnt
FROM (SELECT column_name as myvalues
FROM dba_tables a join dba_tab_columns b ON a.table_name = b.table_name and a.owner = b.owner
where a.table_name = '''||r_c8.TABLE_NAME||''' and
a.owner = '''||r_c8.TABLE_SRC_SCHEMA||''' and b.DATA_TYPE not in (''BLOB'', ''CLOB'', ''LONG'', ''LONG RAW'', ''NCLOB'') )) data
WHERE rn = cnt
START WITH rn = 1
CONNECT BY PRIOR rn = rn-1;';
EXECUTE IMMEDIATE 'BEGIN '||sqlstmtLOB||' END;' USING OUT LOBCommaList;
sqlstmtLOBCat := 'CREATE TABLE '||r_c8.TABLE_DEST_SCHEMA||'.ERR$_'||r_c8.TABLE_NAME||' AS SELECT '||LOBCommaList||' FROM '||r_c8.TABLE_SRC_SCHEMA||'.'||r_c8.TABLE_NAME||' WHERE 1 = 0';
EXECUTE IMMEDIATE sqlstmtLOBCat;
sqlstmtLOBCat2 := 'ALTER TABLE '||r_c8.TABLE_DEST_SCHEMA||'.ERR$_'||r_c8.TABLE_NAME||' ADD (ORA_ERR_NUMBER$ NUMBER, ORA_ERR_MESG$ VARCHAR2(2000 BYTE), ORA_ERR_ROWID$ UROWID(4000), ORA_ERR_OPTYPE$ VARCHAR2(2 BYTE), ORA_ERR_TAG$ VARCHAR2(2000 BYTE))';
EXECUTE IMMEDIATE sqlstmtLOBCat2;
sqlstmtL := 'INSERT INTO '||r_c8.TABLE_DEST_SCHEMA||'.'||r_c8.TABLE_NAME||' SELECT * FROM '||r_c8.TABLE_SRC_SCHEMA||'.'||r_c8.TABLE_NAME||' LOG ERRORS INTO '||r_c8.TABLE_DEST_SCHEMA||'.ERR$_'||r_c8.TABLE_NAME||' (''811UPGRADE_Grp2'') REJECT LIMIT UNLIMITED;';
EXECUTE IMMEDIATE('BEGIN '||sqlstmtL||' END;');
commit;
END IF;
END IF;
END;