Convert String to CLOB problem, CLOB is a input parameter in the procedure.

I can not flush and close "Writer"??
The following code:
CLOB inclob=null;
CallableStatement csr=conn.prepareCall ("begin TestClob(?); end;");
csr.registerOutParameter (1, Types.CLOB);
inclob = CLOB.createTemporary(conn,false,CLOB.DURATION_CALL);
inclob .open(CLOB.MODE_READWRITE);
Writer tempClobWriter = inclob.getCharacterOutputStream();
tempClobWriter.write("This is In CLOB");
// Flush and close the stream
tempClobWriter.flush(); // problem is here
tempClobWriter.close();//problem is here
inclob.close();// this works
Btw:
How to use CLOB.setString() to specify string to CLOB directly?
Message was edited by:
user515324

sorry, I fogot mention the error is "No data to read from socket"
My Oracle JDBC driver is 9.2.0.4, Oracle database is 10.2.1.0
Some guy said it is driver's problem.

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INSERT INTO bg_bug(LOGGED_BY,BUG_SEQ_NUM,BUG_DESCRIP,STATUS_CODE,STATUS_CHANGE_DATE,PROJ_CODE,MODULE_NAME,SEVERITY_CODE,ASSIGNED_TO,LOGGED_DATE,tech_liaison,REQUESTOR,DUE_DATE,LOCK_BUG,LOCKED_BY,PRIVATE_BUG,PRIVATE_BY,MOO,moo_history,developer_comment) VALUES (:1,:2,:3,:4,:5,:6,:7,:8,:9,:10,:11,:12,:13,:14,:15,:16,:17,:18,EMPTY_CLOB(),EMPTY_CLOB()) RETURNING ROWID,LOGGED_BY,BUG_SEQ_NUM,BUG_DESCRIP,STATUS_CODE,STATUS_CHANGE_DATE,PROJ_CODE,MODULE_NAME,SEVERITY_CODE,ASSIGNED_TO,LOGGED_DATE,tech_liaison,REQUESTOR,DUE_DATE,LOCK_BUG,LOCKED_BY,PRIVATE_BUG,PRIVATE_BY,MOO,moo_history,developer_comment INTO :21,:22,:23,:24,:25,:26,:27,:28,:29,:30,:31,:32,:33,:34,:35,:36,:37,:38,:39,:40,:41

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Code Snipplet
POST-INSERT on forms
==================
declare
vCmttext CLOB;
msgendtag VARCHAR2(100) CHARACTER SET vCmttext%CHARSET:= '</ichicsr>';
begin
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==========
CREATE OR REPLACE PROCEDURE AS_TEST_LOG_UPD(vid varchar2, vSEQ_NBR number,
vCommenttext TEST_LOG.CMNT%type)
AS
l_text_buffer varchar2(100);
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vComment1 clob CHARACTER SET vCommenttext%CHARSET;
amt INTEGER := 3000;
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CREATE OR REPLACE FUNCTION MULTI_GML_TO_SDOGEOM (
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IS
v_count             NUMBER;
v_gml               XMLType;
v_gml_rec           XMLType;
v_gml_clob          CLOB;
v_gml_clob_rec      CLOB;
sql_stmt            CLOB;
v_sdogeom           SDO_GEOMETRY;
v_sdogeom_all       SDO_GEOMETRY;
varray_sdogeom      SDO_GEOMETRY_ARRAY;
TYPE t_ref_cursor IS REF CURSOR;
c_geoms         t_ref_cursor;
BEGIN
varray_sdogeom := SDO_GEOMETRY_ARRAY();
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SELECT count(*) INTO v_count FROM XMLTable ('declare namespace gml="http://www.opengis.net/gml/3.2"; (: :)
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                                                           PASSING gmldata
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show errorsUnfortunately I cannot add the data I am processing as it is classified but here is a dummy sample of the type of GML I am parsing though this is short enough that it works:
<GeometryComponents xmlns:gml="http://www.opengis.net/gml/3.2">
<polygon xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:srv="http://www.isotc211.org/2005/srv"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:mgmp="http://www.mod.uk/mgmp" xmlns:smr="http://www.mod.uk/smr"
xmlns:xlink="http://www.w3.org/1999/xlink"><gml:Polygon gml:id="bp2" srsName="EPSG:4326">
<gml:exterior>
<gml:LinearRing>
<gml:posList srsDimension="2">175 -40 176 -40 176 -39 175 -39 175 -40</gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</polygon>
</GeometryComponents>And although this function is normally called from a procedure, here is a call from dual
select MULTI_GML_TO_SDOGEOM ('<GeometryComponents xmlns:gml="http://www.opengis.net/gml/3.2">
<polygon xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:srv="http://www.isotc211.org/2005/srv"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:mgmp="http://www.mod.uk/mgmp" xmlns:smr="http://www.mod.uk/smr"
xmlns:xlink="http://www.w3.org/1999/xlink"><gml:Polygon gml:id="bp2" srsName="EPSG:4326">
<gml:exterior>
<gml:LinearRing>
<gml:posList srsDimension="2">175 -40 176 -40 176 -39 175 -39 175 -40</gml:posList>
</gml:LinearRing>
</gml:exterior>
</gml:Polygon>
</polygon>
</GeometryComponents>') from dual;Thanks in advance.

Hi,
I fail to see why you use dynamic SQL here.
As said above, you're doing a lot of bad and unnecessary stuff, first of which being not using bind variables.
Then I see a lot serializing/constructing on XMLType which just adds more overhead.
Basically, the function can be simplified down to :
create or replace function multi_gml_to_sdogeom (
geometry_components in clob
return sdo_geometry
is
v_sdogeom_all       SDO_GEOMETRY;
begin
select SDO_AGGR_SET_UNION(
           cast(
             collect(
               SDO_CS.TRANSFORM(SDO_UTIL.FROM_GML311GEOMETRY(spatial_location), 8307)
             as sdo_geometry_array
         , .005
into v_sdogeom_all
from (
    select xmlserialize(content x.column_value) as spatial_location
    from xmltable(
           xmlnamespaces ('http://www.opengis.net/gml/3.2' as "gml")
         , '/GeometryComponents/polygon/(gml:Polygon|gml:Point)'
           passing xmlparse(document geometry_components)
         ) x
return v_sdogeom_all;
end;
SQL> select multi_gml_to_sdogeom('<GeometryComponents xmlns:gml="http://www.opengis.net/gml/3.2">
2 <polygon xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:srv="http://www.isotc211.org/2005/srv"
3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:mgmp="http://www.mod.uk/mgmp" xmlns:smr="http://www.mod.uk/smr"
4 xmlns:xlink="http://www.w3.org/1999/xlink"><gml:Polygon gml:id="bp2" srsName="EPSG:4326">
5 <gml:exterior>
6 <gml:LinearRing>
7 <gml:posList srsDimension="2">175 -40 176 -40 176 -39 175 -39 175 -40</gml:posList>
8 </gml:LinearRing>
9 </gml:exterior>
10 </gml:Polygon>
11 <gml:Point gml:id="p21" srsName="EPSG:4326">
12      <gml:coordinates>45.67, 88.56</gml:coordinates>
13    </gml:Point>
14 </polygon>
15 </GeometryComponents>')
16 from dual ;
MULTI_GML_TO_SDOGEOM('<GEOMETR
<Object>
Edited by: odie_63 on 8 janv. 2013 18:02

String Literal too long / CLOB Issue

I have a table with a "Clob" column called Message. This is where I store the message of an email. We have an internal email app. What is happening is I can't insert anything bigger then around 3990 or something around there. In my procedure I have the parameter coming in as clob and I use a TO_CHAR() around the table column and my parameter or my procedure gives me this error
PL/SQL: ORA-00932: inconsistent datatypes: expected - got CLOB
But when it runs and I put in a 9000 character message it says
Oracle.DataAccess.Client.OracleException was unhandled by user code
Message="ORA-01704: string literal too long
I'm using C# with
Oracle.DataAccess.Client.OracleConnection to create my oracle connection and Oracle 10g.
I'm calling this procedure from my app. By doing this am I causing it to only hold 4000 characters?
Here is a scaled down version of my code on just that column
CREATE OR REPLACE PROCEDURE EMAILINS (
P_MSG IN CLOB
AS
varT VARCHAR2(10000);
varSQL VARCHAR2(20000);
varTemp NUMBER;
BEGIN
-- SEE IF STRING EXISTS
SELECT 1 INTO varTemp
FROM tblEmail
WHERE TO_CHAR(MESSAGE) = P_MSG
EXCEPTION
WHEN TOO_MANY_ROWS THEN
varSQL := varT||CHR(10)||'***Multiple Rows Exist in Table tblEmail***';
DBMS_OUTPUT.PUT_LINE(varSQL);
WHEN NO_DATA_FOUND THEN
varT := P_MSG;
varSQL := 'INSERT INTO TBL_EMAIL( MESSAGE)'||CHR(10);
varSQL := varSQL || 'VALUES (tblEmail_SEQ.NEXTVAL,'||varT||')';
EXECUTE IMMEDIATE varSQL;
END EMAILINS;

In the first place, you don't need (and surely don't want) dynamic SQL to do the insert. Replace
varT := P_MSG;
varSQL := 'INSERT INTO TBL_EMAIL( MESSAGE)'||CHR(10);
varSQL := varSQL || 'VALUES (tblEmail_SEQ.NEXTVAL,'||varT||')';
EXECUTE IMMEDIATE varSQL;with the simpler
INSERT INTO tbl_email( <<primary key column>>, message )
VALUES( tblEmail_Seq.nextval, p_msg );Secondly, you want to use the DBMS_LOB.COMPARE function to determine whether the contents of the LOBs match. So replace
SELECT 1
INTO varTemp
FROM tblEmail
WHERE TO_CHAR(MESSAGE) = P_MSG with
SELECT 1
INTO varTemp
FROM tblEmail
WHERE dbms_lob.compare( message, p_msg ) = 0Of course, it is going to be relatively expensive to run this query every time you insert a new message unless the table is always going to be very small, which seems unlikely. It also doesn't prevent duplicate entries if there are multiple threads executing at the same time.
Justin

Can I convert existing column BLOB to CLOB?

Hi ,
I need conversion of existing column from BLOB to CLOB. Kindly sueggest workaround. Table structure is as
{ desc tab1;
Name Null? Type
Name Null? Type
RECID NOT NULL VARCHAR2(255)
XMLRECORD BLOB}
I need to convert it from blob to clob. Kindly provide workaround.
Regards

Hi,
How can i use this function for my scenario
1. Table name is "test" and XMLRECORD column should be in CLOB without drop table. Kindly update this fuction as per my scenario and also provide all the steps
CREATE OR REPLACE FUNCTION blob_to_clob (blob_in IN BLOB)
RETURN CLOB
AS
v_clob CLOB;
v_varchar VARCHAR2(32767);
v_start PLS_INTEGER := 1;
v_buffer PLS_INTEGER := 32767;
BEGIN
DBMS_LOB.CREATETEMPORARY(v_clob, TRUE);
FOR i IN 1..CEIL(DBMS_LOB.GETLENGTH(blob_in) / v_buffer)
LOOP
v_varchar := UTL_RAW.CAST_TO_VARCHAR2(DBMS_LOB.SUBSTR(blob_in, v_buffer, v_start));
DBMS_LOB.WRITEAPPEND(v_clob, LENGTH(v_varchar), v_varchar);
v_start := v_start + v_buffer;
END LOOP;
RETURN v_clob;
END blob_to_clob;
]

How do I convert ClobDomain to java.sql.Clob?

I have an instance of oracle.jbo.domain.ClobDomain and i need
to convert it to oracle.sql.CLOB. How do I do this?

Sascha, I tried your solution:
clobData = (CLOB) content.getData();
Alas, it does not work. Although content has a value, clobData becomes null
Also, if I take a look in the source ClobDomain.data, the method getData has the following
comment:
* Internal:Applications should not use this method.
Does anybody know a way out?
lebbol

Facing problem in converting string to date using getOANLSServices()

I am trying to set a value for date field in my vo and trying to insert into the table.
In controller I am getting the String which has a date:
ex: String date="01-NOV-2007";
while setting into the row I need to convert into Date but it is returning null.
The below code I used
to convert into date :
Date dt = new Date(getOADBTransaction().getOANLSServices().stringToDate(date));
But this dt is returning a null value is there any solution please advise me.
Regards!
Smarajeet

Smarajeet ,
See this thread, in one of my replies i have mentioned how to convert string to java.sql.date.You can use the same for oracle.jbo.domain.Date.
urgent!How to set the default selected date for an OAMessageDateFieldBean
--Mukul

Convert String to CLOB problem, CLOB is a input parameter in the procedure.

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