Working with clobs or extremelly large strings - please urgent

Question

Hi,
i have a VARCHAR2 variable that is VARCHAR2(32767), is this possible?
and i receive to the procedure a VARCHAR2 with almost 28000 character, then i have to insert that value as a CLOB in a xmltype table. This would look like a question to XML DB forum, but what i really need to know is how i can insert a string of that value in a table with a CLOB field. When i try i receive missing expression error. here goes the code:
Procedure Insert_Data(xmlSTR in VARCHAR2)
IS
     SQLStmt                                   VARCHAR2(32767);
xmlDoc clob;
BEGIN
xmlDoc := 'xmltype(''<?xml version="1.0"?>' || xmlSTR || ''')';
xml_table_name := 'XML_TABLE';
     EXECUTE IMMEDIATE 'create table XML_TABLE of xmltype';
-- EXECUTE IMMEDIATE 'INSERT INTO ' || xml_table_name || ' VALUES (' || xmlDoc || ')'; --> with this expression i receive "PLS-00382: expression is of wrong type" error in compiling time.
-- and with this i get "missing rigth parentesis" error in run time
     SQLStmt := ' INSERT INTO ' || xml_table_name || ' VALUES (' || xmlDoc || ')';
     EXECUTE IMMEDIATE SQLStmt;
i'm working with oracle 9.2.07 in windows xp and also tried creating a table with a CLOB column and insert xmlDoc value for it, creating a loop and concatenating value from the string
can someone help please

Answer 1

You need to match your datatypes. Either insert an xmltype into a table of xmltype or insert a clob into a clob column. I have demonstated both below.
scott@ORA92> CREATE OR REPLACE PROCEDURE insert_data
  2    (p_xmlSTR      IN VARCHAR2,
  3       p_xml_table_name IN VARCHAR2)
  4  AS
  5    v_xmlDoc          xmlTYPE;
  6  BEGIN
  7    EXECUTE IMMEDIATE
  8        'CREATE TABLE ' || p_xml_table_name || ' OF XMLTYPE';
  9    v_xmlDoc := XMLTYPE ('<?xml version="1.0"?>' || p_xmlSTR);
10    EXECUTE IMMEDIATE
11            'INSERT INTO ' || p_xml_table_name
12        || ' VALUES (:b_xmlDoc)'
13        USING v_xmlDoc;
14  END insert_data;
15  /
Procedure created.
scott@ORA92> SHOW ERRORS
No errors.
scott@ORA92> BEGIN
  2    insert_data
  3  ('<Warehouse>
  4        <WarehouseId>1</WarehouseId>
  5        <WarehouseName>Southlake, Texas</WarehouseName>
  6        <Building>Owned</Building>
  7        <Area>25000</Area>
  8        <Docks>2</Docks>
  9        <DockType>Rear load</DockType>
10        <WaterAccess>true</WaterAccess>
11        <RailAccess>N</RailAccess>
12        <Parking>Street</Parking>
13        <VClearance>10</VClearance>
14    </Warehouse>',
15   'xwarehouses');
16  END;
17  /
PL/SQL procedure successfully completed.
scott@ORA92> DESC xwarehouses
Name                                                  Null?    Type
TABLE of XMLTYPE
scott@ORA92> SELECT * FROM xwarehouses
  2  /
SYS_NC_ROWINFO$
<Warehouse>
  <WarehouseId>1</WarehouseId>
  <WarehouseName>Southlake, Texas</WarehouseName>
  <Building>Owned</Building>
  <Area>25000</Area>
  <Docks>2</Docks>
  <DockType>Rear load</DockType>
  <WaterAccess>true</WaterAccess>
  <RailAccess>N</RailAccess>
  <Parking>Street</Parking>
  <VClearance>10</VClearance>
</Warehouse>
scott@ORA92> DROP TABLE xwarehouses
  2  /
Table dropped.
scott@ORA92> CREATE OR REPLACE PROCEDURE insert_data
  2    (p_xmlSTR      IN VARCHAR2,
  3       p_xml_table_name IN VARCHAR2)
  4  AS
  5    v_xmlDoc          CLOB;
  6  BEGIN
  7    EXECUTE IMMEDIATE
  8        'CREATE TABLE ' || p_xml_table_name || ' (clob_col CLOB)';
  9    v_xmlDoc := '<?xml version="1.0"?>' || p_xmlSTR;
10    EXECUTE IMMEDIATE
11            'INSERT INTO ' || p_xml_table_name
12        || ' VALUES (:b_xmlDoc)'
13        USING v_xmlDoc;
14  END insert_data;
15  /
Procedure created.
scott@ORA92> SHOW ERRORS
No errors.
scott@ORA92> BEGIN
  2    insert_data
  3  ('<Warehouse>
  4        <WarehouseId>1</WarehouseId>
  5        <WarehouseName>Southlake, Texas</WarehouseName>
  6        <Building>Owned</Building>
  7        <Area>25000</Area>
  8        <Docks>2</Docks>
  9        <DockType>Rear load</DockType>
10        <WaterAccess>true</WaterAccess>
11        <RailAccess>N</RailAccess>
12        <Parking>Street</Parking>
13        <VClearance>10</VClearance>
14    </Warehouse>',
15   'xwarehouses');
16  END;
17  /
PL/SQL procedure successfully completed.
scott@ORA92> DESC xwarehouses
Name                                                  Null?    Type
CLOB_COL                                                       CLOB
scott@ORA92> SELECT * FROM xwarehouses
  2  /
CLOB_COL
<?xml version="1.0"?><Warehouse>
    <WarehouseId>1</WarehouseId>
    <WarehouseName>Southlake, Texas</WarehouseName>
    <Building>Owned</Building>
    <Area>25000</Area>
    <Docks>2</Docks>
    <DockType>Rear load</DockType>
    <WaterAccess>true</WaterAccess>
    <RailAccess>N</RailAccess>
    <Parking>Street</Parking>
    <VClearance>10</VClearance>
  </Warehouse>
scott@ORA92>