How to view CLOB column in SQLdeveloper

I'd like to know how to display the value of a CLOB column when in SQLDeveloper. Thanks.

The data grid's cell has a popup editor (a ... button in the cell) where you can see CLOB contents.
-Raghu

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How to view clob data using sql

Hi,
In our database, we have one table that is having one column of CLOB datatype but now i want to view the data using sql select query but it throws error: "Datatype not supported".
Could any one please let me know how to view the clob data using select query.
Oracle DB version : 10.2.0.3
Thanks

h5.
use read procedure
PROCEDURE READ (
lobsrc IN BFILE|BLOB|CLOB ,
amount IN OUT BINARY_INTEGER,
offset IN INTEGER,
buffer OUT RAW|VARCHAR2 );
example Updating LOB by Using DBMS_LOB in PL/SQL
DECLARE
lobloc CLOB; -- serves as the LOB locator
text VARCHAR2(32767):='Resigned: 5 August 2000';
amount NUMBER ; -- amount to be written
offset INTEGER; -- where to start writing
BEGIN
SELECT resume INTO lobloc
FROM employees
WHERE employee_id = 405 FOR UPDATE;
offset := DBMS_LOB.GETLENGTH(lobloc) + 2;
amount := length(text);
DBMS_LOB.WRITE (lobloc, amount, offset, text );
text := ' Resigned: 30 September 2000';
SELECT resume INTO lobloc
FROM employees
WHERE employee_id = 170 FOR UPDATE;
amount := length(text);
DBMS_LOB.WRITEAPPEND(lobloc, amount, text);
COMMIT;
END;

Forms 6.0 how to query clob column with oracle 9.2 DB

hi every body,
i made install for oracle 9.2 oracle DB every thing goes ok but when i made query in my form version 6.0 which have CLOB column the form closed automatically without any message?
and just for know when i run the same form with oracle 8.1.7 DB the form made query normally without any problem.
i want your help please.
Message was edited by:
mshaqalaih

I know there was a problem in 6i where you would get a crash if your query returned more than {Max Length} characters of the field representing the CLOB column.

SQL LOADER: how to load CLOB column using stored function

Hi,
I am a newbie of sql loader. Everything seems to be fine until I hit a
road block - the CLOB column type. I want to load data into the clob
column using a stored function. I need to do some manipulation on the
data before it gets saved to that column. But I got this error when I
run the sql loader.
SQL*Loader-309: No SQL string allowed as part of "DATA" field
specification
DATA is my CLOB type column.
here is the content of the control file:
LOAD DATA
INFILE 'test.csv'
BADFILE 'test.bad'
DISCARDFILE 'test.dsc'
REPLACE
INTO TABLE test_table
FIELDS TERMINATED BY ','
OPTIONALLY ENCLOSED BY '"'
TRAILING NULLCOLS
codeid          BOUNDFILLER,
reason          BOUNDFILLER,
Checkstamp     "to_date(:CHECKSTAMP, 'mm/dd/yyyy')",
"DATA"          "GetContent(:codeid, :reason)"
All references are suggesting to use a file to load data on
CLOB column but I want to use a function in which it generates
the content to be saved into the column.
Any help is greatly appreciated.
Thanks,
Baldwin
MISICompany

*** Duplicate Post ... Please Ignore ***

How to view package body in sqlDeveloper

Hi everyone, I am able to use popup describe to view a PL SQL package definiton in SQL developer.
My problem is how to view the package body easily. In TOAD, say I have a package called XX_TOAD with a procedure get_name, I can type in XX_TOAD.get_name in the editor and describe it to show the package body.
Is there an easy way to view the package body in SQL developer without having the browse the database objects?
Thanks

Type the package name in the Sand select the package /procedure and press SHIFT + F4. A new window will open displaying the package script
--rsrini

How to convert clob column to long

Hi,
Is there any way to convert clob column to long.
Here below is my scenario..
Instead of using substr function
CREATE OR REPLACE PROCEDURE proc AS
sql2 clob := '';
sqlstring1 LONG;
sqlstring2 LONG;
sqlstring3 LONG;
sqlstring4 LONG;
sqlstring5 LONG;
sqlstring6 LONG;
sqlstring7 LONG;
sqlstring8 LONG;
sqlstring9 LONG;
sqlstring10 LONG;
BEGIN
FOR sql1 IN (SELECT info FROM emp)
LOOP
sql2 := sql1.sql_string;
sqlString1 := dbms_lob.SUBSTR(sql2, 8000, 1);
sqlString2 := dbms_lob.SUBSTR(sql2, 8000, 8001);
sqlString3 := dbms_lob.SUBSTR(sql2, 8000, 16001);
sqlString4 := dbms_lob.SUBSTR(sql2, 8000, 24001);
sqlString5 := dbms_lob.SUBSTR(sql2, 8000, 32001);
sqlString6 := dbms_lob.SUBSTR(sql2, 8000, 40001);
sqlString7 := dbms_lob.SUBSTR(sql2, 8000, 48001);
sqlString8 := dbms_lob.SUBSTR(sql2, 8000, 56001);
sqlString9 := dbms_lob.SUBSTR(sql2, 8000, 64001);
sqlString10 := dbms_lob.SUBSTR(sql2, 8000, 72001);
EXECUTE IMMEDIATE sqlString1 || sqlString2 || sqlString3 ||
sqlString4 || sqlString5 || sqlString6 ||
sqlString7 || sqlString8 || sqlstring9 ||
sqlstring10;
END LOOP;
COMMIT;
END proc;
Any help really appreciated
Thanks

We cannot execute clob dynamically.That's what I said: execute immediate doesn't support CLOB!
But you can concatenate two long's:
SQL> DECLARE
   l_stmt1   LONG;
   l_stmt2   LONG;
BEGIN
   l_stmt1 := RPAD ('BEGIN ', 32500, ' ');
   l_stmt2 :=
       RPAD (' dbms_output.put_line(''Hello World'');', 32500, ' ')
       || 'END;';
   DBMS_OUTPUT.put_line ('Length of statement: '
                         || LENGTH (l_stmt1 || l_stmt2)
   EXECUTE IMMEDIATE (l_stmt1 || l_stmt2);
END;
Length of statement: 65004
Hello World
PL/SQL procedure successfully completed.So if you strip some extra spaces or try to compact your statement somehow, you might be able use above method.

Select clob column bogs down sqldeveloper GUI

Hi,
If I select a clob field, sqldeveloper completely slows down, taking seconds (many more than usual) for any GUI even.
i.e. this bogs down sqldeveloper:
select clob_col_name
from table_containing_clob_field;
I thought this may be a memory issue (as it could be downloading the whole clob, but I did not take time to verify). However even selecting one char from the clob column makes the sqldeveloper GUI lag
i.e. even this bogs down sqldeveloper:
select substr(clob_col_name, 1, 1)
from table_containing_clob_field;
Running select '' from dual; will bring the sqldeveloper GUI back to it's normal responsiveness.
IMO this is a bug, selecting 1 char from 30 records should not slow down every GUI event in the whole application.
Should I submit a bug or does anyone want to discuss this further?
Edited by: mdaly on Jul 8, 2009 6:09 PM

What version of the Oracle database?
- Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Prod
How is the CLOB column stored? Inline or out of line?
- CREATE
TABLE "STYLESHEET"
"NAME" NVARCHAR2(60) NOT NULL ENABLE,
"VER" NUMBER NOT NULL ENABLE,
"STYLESHEET" CLOB NOT NULL ENABLE,
"DATEADDED" TIMESTAMP (6) DEFAULT SYSDATE NOT NULL ENABLE,
CONSTRAINT "STYLESHEET_NAME_PK" PRIMARY KEY ("NAME")
How large are the clobs?
- ~40kB
Why are you using Substringing one character of a CLOB does not mean that the entire clob from every column must be read into memory.
- I was using substr to test if sqldeveloper behaved the same when 1 character from the clob was selected versus not using any substr function.
Surely Oracle version or the way the clob is stored should not affect how the sqldeveloper GUI responds after a resultset is returned?

View CLOB data in SQL Developer

Hi,
Can anyone let me know how to view CLOB data in SQL Developer 2.1.
I am having images stored in a column of datatype CLOB. How to view this image.
Database is 10.2.0.4.

Since SQL Developer has no idea about the type of data stored in LOB columns, one cannot view that content in desired format.
You need a tool to extract the LOB data and render it accordingly.
BTW, do you mean BLOB here?

Creation of view with clob column in select and group by clause.

Hi,
We are trying to migrate a view from sql server2005 to oracle 10g. It has clob column which is used in group by clause. How can the same be achived in oracle 10g.
Below is the sql statament used in creating view aling with its datatypes.
CREATE OR REPLACE FORCE VIEW "TEST" ("CONTENT_ID", "TITLE", "KEYWORDS", "CONTENT", "ISPOPUP", "CREATED", "SEARCHSTARTDATE", "SEARCHENDDATE", "HITS", "TYPE", "CREATEDBY", "UPDATED", "ISDISPLAYED", "UPDATEDBY", "AVERAGERATING", "VOTES") AS
SELECT content_ec.content_id,
          content_ec.title,
          content_ec.keywords,
          content_ec.content content ,
          content_ec.ispopup,
          content_ec.created,
          content_ec.searchstartdate,
          content_ec.searchenddate,
        COUNT(contenttracker_ec.contenttracker_id) hits,
          contenttypes_ec.type,
          users_ec_1.username createdby,
          Backup_Latest.created updated,
          Backup_Latest.isdisplayed,
          users_ec_1.username updatedby,
          guideratings.averagerating,
          guideratings.votes
     FROM users_ec users_ec_1
            JOIN Backup_Latest
             ON users_ec_1.USER_ID = Backup_Latest.USER_ID
            RIGHT JOIN content_ec
            JOIN contenttypes_ec
             ON content_ec.contenttype_id = contenttypes_ec.contenttype_id
             ON Backup_Latest.content_id = content_ec.content_id
            LEFT JOIN guideratings
             ON content_ec.content_id = guideratings.content_id
            LEFT JOIN contenttracker_ec
             ON content_ec.content_id = contenttracker_ec.content_id
            LEFT JOIN users_ec users_ec_2
             ON content_ec.user_id = users_ec_2.USER_ID
     GROUP BY content_ec.content_id,
     content_ec.title,
     content_ec.keywords,
     to_char(content_ec.content) ,
     content_ec.ispopup,
     content_ec.created,
     content_ec.searchstartdate,
     content_ec.searchenddate,
     contenttypes_ec.type,
     users_ec_1.username,
     Backup_Latest.created,
     Backup_Latest.isdisplayed,
     users_ec_1.username,
     guideratings.averagerating,
     guideratings.votes;
Column Name      Data TYpe
CONTENT_ID     NUMBER(10,0)
TITLE          VARCHAR2(50)
KEYWORDS     VARCHAR2(100)
CONTENT          CLOB
ISPOPUP          NUMBER(1,0)
CREATED          TIMESTAMP(6)
SEARCHSTARTDATE     TIMESTAMP(6)
SEARCHENDDATE     TIMESTAMP(6)
HITS          NUMBER
TYPE          VARCHAR2(50)
CREATEDBY     VARCHAR2(20)
UPDATED          TIMESTAMP(6)
ISDISPLAYED     NUMBER(1,0)
UPDATEDBY     VARCHAR2(20)
AVERAGERATING     NUMBER
VOTES          NUMBERAny help realyy appreciated.
Thanks in advance
Edited by: user512743 on Dec 10, 2008 10:46 PM

Hello,
Specifically, this should be asked in the
ASP.Net MVC forum on forums.asp.net.
Karl
When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer.
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How to query a CLOB column

Hello All,
I am trying to query a CLOB column with some text string. Can anyone tell me how to do this. Here is a simple example of my code and the error message I get....
SQL> select title_column from atlas_table where clob_column like '%a%';
select title_column from atlas_table where clob_column like '%e%'
ERROR at line 1:
ORA-00932: inconsistent datatypes
Thanks,
Danny

Selecting a LOB from a table actually returns the LOB's locator and not the entire LOB value..
and you should have a frontend to retrieve the clob or blob..
if u have you can view/update/..do DML operations on the column
null

How to publish XML document whose source is stored in clob column

I have to create simple application:
in one table are stored some information about XML documents (date of creation, etc.) and the document source itself in one (unfortunatelly clob type) column.
The point is to anable users finding document(s) and viewing it.
Using forms I can search and display information about documents. But I have no idea how to publish XML document whose source is stored in clob column.
I am using Oracle Portal 3.0 on NT.
Thanks in advance.

Hi Sergio,
This link might be helpful:
http://www.oracle.com/webfolder/technetwork/tutorials/obe/db/apex/r31/apex31nf/apex31blob.htm
Also refer the BLOB Download Format Mask :
{message:id=9716335}
Here I have given the format mask for APEX 4.0, which will slightly differ for 3.2.1 and proposed changes
in the format mask are:
1) Format Mask: DOWNLOAD
2) Content Disposition: Inline
This will be achieved with it:
>
But now, my user would like to know if it´s possible that APEX application can OPEN some of these files stored on this BLOB column WITHOUT download it.
My user would like to see a hiperlink (or button) that, if pressed/acessed, can open a new page (or a page inside application) with the document. He doesn´t need to edit this oppened file. He only wants to see it.
>
Hope it helps!
Regards,
Kiran

How to read/write .CSV file into CLOB column in a table of Oracle 10g

I have a requirement which is nothing but a table has two column
create table emp_data (empid number, report clob)
Here REPORT column is CLOB data type which used to load the data from the .csv file.
The requirement here is
1) How to load data from .CSV file into CLOB column along with empid using DBMS_lob utility
2) How to read report columns which should return all the columns present in the .CSV file (dynamically because every csv file may have different number of columns) along with the primariy key empid).
eg: empid report_field1 report_field2
1 x y
Any help would be appreciated.

If I understand you right, you want each row in your table to contain an emp_id and the complete text of a multi-record .csv file.
It's not clear how you relate emp_id to the appropriate file to be read. Is the emp_id stored in the csv file?
To read the file, you can use functions from [UTL_FILE|http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/u_file.htm#BABGGEDF] (as long as the file is in a directory accessible to the Oracle server):
declare
    lt_report_clob CLOB;
    l_max_line_length integer := 1024;   -- set as high as the longest line in your file
    l_infile UTL_FILE.file_type;
    l_buffer varchar2(1024);
    l_emp_id report_table.emp_id%type := 123; -- not clear where emp_id comes from
    l_filename varchar2(200) := 'my_file_name.csv';   -- get this from somewhere
begin
   -- open the file; we assume an Oracle directory has already been created
    l_infile := utl_file.fopen('CSV_DIRECTORY', l_filename, 'r', l_max_line_length);
    -- initialise the empty clob
    dbms_lob.createtemporary(lt_report_clob, TRUE, DBMS_LOB.session);
    loop
      begin
         utl_file.get_line(l_infile, l_buffer);
         dbms_lob.append(lt_report_clob, l_buffer);
      exception
         when no_data_found then
             exit;
      end;
    end loop;
    insert into report_table (emp_id, report)
    values (l_emp_id, lt_report_clob);
    -- free the temporary lob
    dbms_lob.freetemporary(lt_report_clob);
   -- close the file
   UTL_FILE.fclose(l_infile);
end;This simple line-by-line approach is easy to understand, and gives you an opportunity (if you want) to take each line in the file and transform it (for example, you could transform it into a nested table, or into XML). However it can be rather slow if there are many records in the csv file - the lob_append operation is not particularly efficient. I was able to improve the efficiency by caching the lines in a VARCHAR2 up to a maximum cache size, and only then appending to the LOB - see [three posts on my blog|http://preferisco.blogspot.com/search/label/lob].
There is at least one other possibility:
- you could use [DBMS_LOB.loadclobfromfile|http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_lob.htm#i998978]. I've not tried this before myself, but I think the procedure is described [here in the 9i docs|http://download.oracle.com/docs/cd/B10501_01/appdev.920/a96591/adl12bfl.htm#879711]. This is likely to be faster than UTL_FILE (because it is all happening in the underlying DBMS_LOB package, possibly in a native way).
That's all for now. I haven't yet answered your question on how to report data back out of the CLOB. I would like to know how you associate employees with files; what happens if there is > 1 file per employee, etc.
HTH
Regards Nigel
Edited by: nthomas on Mar 2, 2009 11:22 AM - don't forget to fclose the file...

How to create a view indicating column's length?

SQL>create table abc (a number(12));
I want to create a view cde with a length of number(5) by "describe cde" in sql*plus.
SQL>create view cde(a) as select a from abc;
SQL>desc cde
A NUMBER(12)
how to create a view indicating column's length? the actual value in abc only <1000
I want to create a view cde with a length of number(5) .
SQL>desc cde
A NUMBER(12)
Thank You
Ming-An Zhang

This does not make sense. How can a view be a NUMBER(5) and the actual column a NUMBER(12)?
What happens if there is a 10 or 12 digit number in the table? Just what is the view suppose to do? Crash and burn? Where is the logic in that?!
If the table's column has an incorrect precision and size, THEN FIX IT!! Do not hack it with view!
It is silly purposefully building constructs into the database that can easily result in run-time errors.

How to create list of a View's column names and source

Using SQL 2005, 2008, and 2012
How to create list of a View's column names and source. For the following example would like to @Print something like the following. Does anyone already have some code to do this? I realize there are probably some gotchas, but the views that I am looking
at to use this follows the code snippet pattern below.
DBACCT.[Account Number]
dbo.ConvertDate(DBACDT). [Boarding Date]
DBXES.DBXES
CREATE VIEW [dbo].[v_ods_DBAL]
AS
SELECT DBACCT AS [Account Number], dbo.ConvertDate(DBACDT) AS [Boarding Date], DBXES
FROM dbo.ods_DBAL

The column information can be obtained from INFORMATION_SCHEMA.COLUMNS view using logic like below
SELECT c.COLUMN_NAME,c.DATA_TYPE
FROM INFORMATION_SCHEMA.COLUMNS c
WHERE EXISTS (SELECT 1
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_NAME = c.TABLE_NAME
AND TABLE_TYPE='VIEW')
http://technet.microsoft.com/en-us/library/ms188348.aspx
Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

How to insert more than 32k xml data into oracle clob column

how to insert more than 32k xml data into oracle clob column.
xml data is coming from java front end
if we cannot use clob than what are the different options available

Are you facing any issue with my code?
String lateral size error will come when you try to insert the full xml in string format.
public static boolean writeCLOBData(String tableName, String id, String columnName, String strContents) throws DataAccessException{
boolean isUpdated = true;
Connection connection = null;
try {
connection = ConnectionManager.getConnection ();
//connection.setAutoCommit ( false );
PreparedStatement PREPARE_STATEMENT = null;
String sqlQuery = "UPDATE " + tableName + " SET " + columnName + " = ? WHERE ID =" + id;
PREPARE_STATEMENT = connection.prepareStatement ( sqlQuery );
// converting string to reader stream
Reader reader = new StringReader ( strContents );
PREPARE_STATEMENT.setClob ( 1, reader );
// return false after updating the clob data to DB
isUpdated = PREPARE_STATEMENT.execute ();
PREPARE_STATEMENT.close ();
} catch ( SQLException e ) {
e.printStackTrace ();
finally{
return isUpdated;
Try this JAVA code.

How to view CLOB column in SQLdeveloper

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