ORA-31085 schema "" already registered

Question

To all,
We are getting an ORA-31085 schema "" already registered on 11g. There are no registered schema in: SQL> SELECT * FROM USER_XML_SCHEMAS;
no rows selected.
This error is preventing a stored procedure from executing and properly completing a critical INSERT statement.
Does anyone have any idea why we'd encounter this when attempting to INSERT into a table with a single column of XMLTYPE.
We receive the XML via a CLOB datatype INPUT variable in the stored procedure and then cast it as XMLTYPE(column_xml_data).
Thanks,
Eric

Answer 1

Here is the table DDL:
CREATE TABLE "LOGGING"."MESSAGE"
("MESSAGE_ID" NUMBER(*,0) NOT NULL ENABLE,
     "EMPLOYEE_NUM" VARCHAR2(8) NOT NULL ENABLE,
     "SEQUENCE_NUM" VARCHAR2(20),
     "REVERSAL_SEQUENCE_NUM" VARCHAR2(20),
     "TRANSACTION_TS" TIMESTAMP (6),
     "D_ACCOUNT_ID" VARCHAR2(40),
     "C_ACCOUNT_ID" VARCHAR2(40),
     "MESSAGE_CONTENT_TXT" "XMLTYPE" NOT NULL ENABLE,
     "CREATE_BY_NM" VARCHAR2(50 CHAR) NOT NULL ENABLE,
     "CREATE_BY_TS" TIMESTAMP (6) NOT NULL ENABLE,
     "LAST_UPDATE_BY_NM" VARCHAR2(50 CHAR) NOT NULL ENABLE,
     "LAST_UPDATE_BY_TS" TIMESTAMP (6) NOT NULL ENABLE,
     "REQUEST_UU_ID" VARCHAR2(50) NOT NULL ENABLE,
     "MESSAGE_TYPE_CD" CHAR(3 CHAR) NOT NULL ENABLE,
     CONSTRAINT "MESSAGE_PK" PRIMARY KEY ("TELLER_MESSAGE_ID")
USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "LOGGING_DATA" ENABLE,
     CONSTRAINT "MESSAGE_FK1" FOREIGN KEY ("REQUEST_UU_ID")
     REFERENCES "LOGGING"."TELLER_REQUEST" ("REQUEST_UU_ID") ENABLE,
     CONSTRAINT "MESSAGE_FK2" FOREIGN KEY ("MESSAGE_TYPE_CD")
     REFERENCES "LOGGING"."MESSAGE_TYPE" ("MESSAGE_TYPE_CD") ENABLE
) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "LOGGING_DATA"
XMLTYPE COLUMN "MESSAGE_CONTENT_TXT" STORE AS BASICFILE CLOB (
TABLESPACE "LOGGING_DATA" ENABLE STORAGE IN ROW CHUNK 8192 PCTVERSION 10
NOCACHE LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT))
Here is the version:
SQL> SELECT * FROM V$VERSION;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for IBM/AIX RISC System/6000: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
Here is the DML for the Stored Procedure:
CREATE OR REPLACE PROCEDURE "LOG_MSG"
v_SERVICE_TYPE_DESC IN VARCHAR2,
v_CREATE_BY_NM IN VARCHAR2,
t_CREATE_BY_TS IN TIMESTAMP DEFAULT SYSDATE,
v_LAST_UPDATE_BY_NM IN VARCHAR2,
t_LAST_UPDATE_BY_TS IN TIMESTAMP DEFAULT SYSDATE,
v_MESSAGE_TYPE_DESC IN VARCHAR2,
v_REQUEST_UU_ID IN VARCHAR2,
v_EMPLOYEE_NUM IN VARCHAR2,
v_SEQUENCE_NUM IN VARCHAR2,
v_REVERSAL_SEQUENCE_NUM IN VARCHAR2,
t_TRANSACTION_TS IN TIMESTAMP,
v_DEBIT_ACCOUNT_ID IN VARCHAR2,
v_CREDIT_ACCOUNT_ID IN VARCHAR2,
x_MESSAGE_CONTENT_TXT IN CLOB
AS
temp_SERVICE_TYPE_CD NUMBER := 0;
temp_MESSAGE_TYPE_CD VARCHAR2(20);
     temp_CREATE_BY_NM VARCHAR(50);
     temp_EMPLOYEE_NUM VARCHAR(8);
     temp_LAST_UPDATE_BY_NM VARCHAR(50);
     temp_REQUEST_UU_ID VARCHAR(50);
BEGIN
IF v_CREATE_BY_NM IS NULL THEN
     temp_CREATE_BY_NM := 'unknown';
ELSE
     temp_CREATE_BY_NM := v_CREATE_BY_NM;
     END IF;
     IF v_LAST_UPDATE_BY_NM IS NULL THEN
     temp_LAST_UPDATE_BY_NM := 'unknown';
     ELSE
     temp_LAST_UPDATE_BY_NM := v_LAST_UPDATE_BY_NM;
     END IF;
     IF v_EMPLOYEE_NUM IS NULL THEN
     temp_EMPLOYEE_NUM := 'unknown';
     ELSE
     temp_EMPLOYEE_NUM := v_EMPLOYEE_NUM;
     END IF;
     IF v_REQUEST_UU_ID IS NOT NULL THEN
     temp_REQUEST_UU_ID := v_REQUEST_UU_ID;
     ELSE
     temp_REQUEST_UU_ID := "LOGGING"."LOGGING_SEQ"."NEXTVAL";
     END IF;     
     IF v_MESSAGE_TYPE_DESC LIKE '%Request%' THEN
temp_MESSAGE_TYPE_CD := 'REQ';
ELSE
temp_MESSAGE_TYPE_CD := 'REP';
END IF;
SELECT st.SERVICE_TYPE_CD INTO temp_SERVICE_TYPE_CD FROM SERVICE_TYPE st
WHERE v_SERVICE_TYPE_DESC = st.SERVICE_TYPE_DESC;
IF temp_MESSAGE_TYPE_CD LIKE '%REQ%' THEN
INSERT INTO "LOGGING"."REQUEST" (REQUEST_UU_ID, SERVICE_TYPE_CD, CREATE_BY_NM, CREATE_BY_TS, LAST_UPDATE_BY_NM, LAST_UPDATE_BY_TS )
VALUES (temp_REQUEST_UU_ID,temp_SERVICE_TYPE_CD,temp_CREATE_BY_NM,t_CREATE_BY_TS,temp_LAST_UPDATE_BY_NM,t_LAST_UPDATE_BY_TS);
END IF;
INSERT INTO "LOGGING"."MESSAGE" (TELLER_MESSAGE_ID, REQUEST_UU_ID, MESSAGE_TYPE_CD, EMPLOYEE_NUM, SEQUENCE_NUM, REVERSAL_SEQUENCE_NUM, TRANSACTION_TS, DEBIT_ACCOUNT_ID, CREDIT_ACCOUNT_ID, MESSAGE_CONTENT_TXT, CREATE_BY_NM, CREATE_BY_TS, LAST_UPDATE_BY_NM, LAST_UPDATE_BY_TS)
VALUES ("LOGGING"."LOGGING_SEQ"."NEXTVAL",temp_REQUEST_UU_ID,temp_MESSAGE_TYPE_CD,temp_EMPLOYEE_NUM,v_SEQUENCE_NUM,v_REVERSAL_SEQUENCE_NUM, t_TRANSACTION_TS,v_DEBIT_ACCOUNT_ID,v_CREDIT_ACCOUNT_ID,XMLTYPE(x_MESSAGE_CONTENT_TXT),temp_CREATE_BY_NM,t_CREATE_BY_TS,temp_LAST_UPDATE_BY_NM,t_LAST_UPDATE_BY_TS);
COMMIT;
END "LOG_MSG";