DBMS_LOB

Hi,
With regards to format the SQL trace files, could DBMS_LOB package helps us in order to format the SQL trace files instead of using TKPROF utility.
If so, could some one suggest how we use dbms_lob package in order to format the sql trace files.
Thanks
Kumar

hi,
Should we read the SQL TRACE files USING DBMS_LOB?
I know in UTL_RAW package ,we can use utl_raw.cast_to_varchar2 to take a raw input and changes the data type from raw to varchar2.
But I don't have a sample code io order to test this.
Is that possible that via above point, we can read the sql trace files with out using TKPROF.
COuld some one have a little sample of it.
Thanks
Kumar

Similar Messages

Error in using DBMS_LOB Package

Hi,
I am attaching a PDF File through a database procedure as shown below
create or replace procedure load_document(document_id in number, filename IN varchar2, doc_desc IN VARCHAR2, doc_type IN VARCHAR2) as
f_lob bfile;
b_lob blob;
--document_name varchar2(30);
--mime_type varchar2(30);
document_name oea_documents.document_name%TYPE;
mime_type oea_documents.document_mime_type%TYPE;
dot_pos number;
v_file_type VARCHAR2(10);
begin
-- Find the position of the dot ('.') located in the filename
dot_pos := instr(filename,'.');
-- Get the filename without extension and use it as image name
document_name := substr(filename,1,dot_pos-1);
-- Build the mime type . Retrieve the file extension and add it to 'image/'
v_file_type := SUBSTR( filename, dot_pos+1, Length(Filename) );
IF ( UPPER(v_file_type) IN ('JPG','JPEG','TIF','TIFF','GIF') ) THEN
mime_type := 'image/'||substr( filename , dot_pos+1 , length(filename) );
ELSIF ( UPPER(v_file_type) = 'PDF' ) THEN
mime_type := 'application/pdf';
ELSIF ( UPPER(v_file_type) = 'DOC' )THEN
mime_type := 'application/msword';
ELSIF ( UPPER( v_file_type) = 'XLS') THEN
mime_type := 'application/ms-excel';
ELSE
mime_type := 'image/'||substr( filename , dot_pos+1 , length(filename) );
END IF;
insert into oea_documents (document_id,
document_name,
document_mime_type,
document,
document_description,
document_type
values(document_id, document_name, mime_type, empty_blob(),doc_desc,doc_type) return document into b_lob;
-- /!\ Directory name has to be UpperCase !
f_lob := bfilename('FILE_LOAD',filename);
o_dset_test('5');
dbms_lob.fileopen(f_lob,dbms_lob.file_readonly);
o_dset_test('6');
dbms_lob.loadfromfile(b_lob,f_lob,dbms_lob.getlength(f_lob) );
dbms_lob.fileclose(f_lob);
commit;
end;
FILE_LOAD is a folder on the database server(unix).
I have also tried to give the full path on the unix databse server instead of FILE_LOAD directory but then it gives error ora-22285.
while executing this procedure I am getting the error ora-22288(Invalid file or directory).
But this occurs randomly
For instance i tried to attach a pdf file with the name cross.pdf ,it gave me the above error and when i renamed the file as Cross.pdf it attached successfully.
The error comes whilke executing the statement dbms_lob.fileopen(f_lob,dbms_lob.file_readonly);
Please guide on the above issue.

Hi,
Welcome to the forum!
user1356624 wrote:
f_lob := bfilename('FILE_LOAD',filename);
FILE_LOAD is a folder on the database server(unix).
I have also tried to give the full path on the unix databse server instead of FILE_LOAD directory but then it gives error ora-22285.The first argument to BFILENAME is the name of a directory object, as found in the directory_name column of all_directories. That is not the same thing as a folder name, which is found in the directory_path column of all_directories. Look up [CREATE DIRECTORY|http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_5007.htm#sthref6211] in the SQL Language manual for a description of Oracle's directory objects.
If you have problems with this, post the results of
SELECT *
FROM all_directories;It might also be useful to see the Oracle "CREATE DIRECTORY" command that was used.
As you probably noticed, this site compresses white space by default.
When you post code or results on this site, type these 6 characters:
(small letters only, inside curly brackets) before and after sections of formatted text, to preserve spacing.
Edited by: Frank Kulash on Aug 10, 2009 3:35 PM
Added link.

Need help in using dbms_lob.read

I need to upload a file into an Oracle table into a Blob column. The file name along with the file contents are all in one BLOB column.
Once that is done I need to read from the file and extract the file contents and load it into a staging table.
File being uploaded is a *.CSV* file.
E.g. Of the .CSV file is: ABC.csv file and its contents will look like:
1,Hello,Nisha
2,Hi,Ravi
3,Bye, Rahul
Etc…..
Therefore the table containing the BLOB column will contain:
File Creation_date
ABC.csv 09/11/2009
How can I read a file from the BLOB column and upload into a staging table?
Final Staging table should look like:
Record Number Greet Name
1 Hello Nisha
2 Hi Ravi
3 Bye Rahul
I think I am suppose to use dbms_lob.read, but I am not really sure how to use it. If there is any script, kindly mail me the same.
Thanks....

Nisha,
Check this example (test) and see if it can be any help. I have utl_file and sqlldr
First Method -- I loaded alert.log successfully and you can imagine how big this file can be (5MB in my test case)
create table t1clob
( clob_text clob);
CREATE OR REPLACE DIRECTORY DIR AS '/path_to_csv_file/;
DECLARE
   clob_data   CLOB;
   clob_file   BFILE;
BEGIN
   INSERT INTO t1clob
   VALUES (EMPTY_CLOB ())
   RETURNING clob_text INTO clob_data;
   clob_file   := BFILENAME ('DIR', ABC.csv');
   DBMS_LOB.fileopen (clob_file);
   DBMS_LOB.loadfromfile (clob_data,
                          clob_file,
                          DBMS_LOB.getlength (clob_file)
   DBMS_LOB.fileclose (clob_file);
   COMMIT;
END;Second Method: Use of Sqlldr
Example of controlfile
LOAD DATA
INFILE alert.log "STR '|\n'"
REPLACE INTO table t1clob
   clob_text char(30000000)
)Hope this helps.

Error while creating AW using DBMS_LOB with XML..

Hi All,
I am trying to create AW using DBMS_LOB package with XML,
while creating AW,i am facing the following error.find the code also below :
declare
xml_awcreate_clob clob;
xml_awcreate_st varchar2(4000);
begin
DBMS_LOB.CREATETEMPORARY(xml_awcreate_clob,TRUE);
dbms_lob.open(xml_awcreate_clob, DBMS_LOB.LOB_READWRITE);
dbms_lob.writeappend(xml_awcreate_clob, 48, '<?xml version = ''1.0'' encoding = ''UTF-8'' ?>');
dbms_lob.writeappend(xml_awcreate_clob, 43, '');
dbms_lob.writeappend(xml_awcreate_clob, 63, '<AWXML version = ''1.0'' timestamp = ''Mon Feb 11 13:29:11 2002'' >');
dbms_lob.writeappend(xml_awcreate_clob, 15, '<AWXML.content>');
dbms_lob.writeappend(xml_awcreate_clob, 25, ' <Create Id="Action41">');
dbms_lob.writeappend(xml_awcreate_clob, 19, ' <ActiveObject >');
dbms_lob.writeappend(xml_awcreate_clob, 163, ' <AW Name="NEW_XML_AW" LongName="NEW_XML_AW" ShortName="NEW_XML_AW" PluralName="NEW_XML_AW" Id="NEW_XML.AW"/>');
dbms_lob.writeappend(xml_awcreate_clob, 19, ' </ActiveObject>');
dbms_lob.writeappend(xml_awcreate_clob, 11, ' </Create>');
dbms_lob.writeappend(xml_awcreate_clob, 16, '</AWXML.content>');
dbms_lob.writeappend(xml_awcreate_clob, 8, '</AWXML>');
dbms_lob.close(xml_awcreate_clob);
xml_awcreate_st := sys.interactionExecute(xml_awcreate_clob);
end;
ORA-21560: argument 2 is null, invalid, or out of range
ORA-06512: at "SYS.DBMS_LOB", line 833
ORA-06512: at line 12
Any idea or thought on this would be appreciable.
Thanks in advance.
Anwar

Did you change any of the text in the lob write statements ?
I believe you get this error if you increase the number of characters without increasing the 1st argument which looks as though it represents the number of characters

Error while converting CLOB to varchar using DBMS_LOB.SUBSTR() in Oracle11g

Hi
Whenever I am using DBMS_LOB.SUBSTR(columnname,4000,1) package for a clob column in a simple Select Query, the following error is thrown for Oracle 11g version.
ORA-06502: PL/SQL: numeric or value error: character string buffer too small ORA-06512: at line 1.
Please find the installation details of the database and the character set
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
PARAMETER VALUE
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
NLS_NUMERIC_CHARACTERS .,
NLS_CHARACTERSET AL32UTF8
NLS_CALENDAR GREGORIAN
NLS_DATE_FORMAT DD-MON-RR
NLS_DATE_LANGUAGE AMERICAN
NLS_SORT BINARY
NLS_TIME_FORMAT HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT DD-MON-RR HH.MI.SSXFF AM
NLS_TIME_TZ_FORMAT HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT DD-MON-RR HH.MI.SSXFF AM TZR
NLS_DUAL_CURRENCY $
NLS_COMP BINARY
NLS_LENGTH_SEMANTICS BYTE
NLS_NCHAR_CONV_EXCP FALSE
NLS_NCHAR_CHARACTERSET AL16UTF16
NLS_RDBMS_VERSION 11.2.0.1.0
It is working fine if I reduce from 4000 to 3500 . But I want to use 4000.
Please let me know if any solution

you are using a multibyte character set:
NLS_CHARACTERSET AL32UTF8
so each character takes between 1 and 4 bytes of storage.
a varchar2(4000) column can only hold 4000 BYTES. Regardless of the character set - varchar2 is limited to 4000 bytes.
In a single byte character set, that is 4000 characters as a character = a byte
In your character set, a varchar2(4000) can hold somewhere between 1000 and 4000 characters - depending on what the characters are.
So, you must have some CLOB whose first 4000 characters include at least one "more than one byte" character. That won't fit into a varchar2(4000)
Your approach of backing off the substr size is reasonable (and you'll need to remember that in your application - end users can type in as little as 1000 characters and get an error about the column being too small!) as it reduces the number of BYTES to be belong 4000.

DBMS_LOB.fileopen issue : please help

Hi all,
I am not able to open the file name with umlauts using DBMS_LOB.fileopen.
sample file name is Übritäts_6.doc
Can somebody throw some light on this?
thanks
kt

What is you database version?
What is your database character set?
What is your database server operating system (Note: Unix is case sensitive, Windows is not)
What is your code that is doing this file opening?

How to insert 10 files from a directory to database,can i use dbms_lob??

Hii
I want to load 10files in my local drive into a table...how to do this.I'm able to do this individually using dbms_lob.loadfromfile and bfil but ,I want to copy all the files i that drive at time to my table...Is there any way to do this..?

Okay... Here is some sample code that will help you store the files in binary format into db tables.
create table t_blob(bid integer, blbdata blob);
select * from t_blob;
create or replace directory ext_tab_dir as 'C:\Oracle\ExtTab_Dir';
grant read, write on directory ext_tab_dir to priya;
declare
      src_file bfile;
      dest_file blob;
      len_file pls_integer;
begin
      src_file:=bfilename('EXT_TAB_DIR','XML.doc');
      insert into t_blob values(1,empty_blob()) returning blbdata into dest_file;
      select blbdata into dest_file
        from t_blob
       where bid=1 for update;
      dbms_lob.fileopen(src_file,dbms_lob.file_readonly);
      len_file:=dbms_lob.getlength(src_file);
      dbms_output.put_line(len_file);
      dbms_lob.loadfromfile(dest_file,src_file,len_file);
      update t_blob
         set blbdata = dest_file
       where bid = 1;
      dbms_lob.fileclose(src_file);
end;
/I haven't used the wrap utility yet, so not much hands on with it. I guess the wrap utility at the OS level. Not sure if it will work at SQL prompt.

PDF file created from Oracle Report is created wrongly using dbms_lob

Hi,
Please help. It is very urgent.
I am using Oracle Developer 10gR2, Oracle Report 10.1.2 on Windows 2000.
I would like to attach the PDF file created by Oracle Report to the Notification sent from Workflow.
I use the following package procedure in my Workflow.
procedure Create_File_Attachment (document_id   in varchar2, display_type in varchar2,
                                                                                     document      in out blob, document_type in out varchar2)
is
     l_itemtype          varchar2(100);
     l_itemkey           varchar2(100);
     l_output_directory varchar2(30);
     l_filename          varchar2(255);
     src_loc             bfile;
     bdoc                blob;
     src_offset          number := 1;
     dst_offset          number := 1;
     amount              number;
begin
     l_itemtype := substr(document_id, 1, instr(document_id, ':') - 1);
     l_itemkey := substr(document_id, instr(document_id, ':') + 1, length(document_id) - 2);
     l_output_directory := 'USR_TMP_DIR';
     l_filename := Wf_Engine.GetItemAttrText(l_itemtype, l_itemkey, 'ATR_FILENAME');
     src_loc := bfilename(l_output_directory,l_filename);
     dbms_lob.createTemporary(bdoc, FALSE, dbms_lob.call);
     dbms_lob.fileopen(src_loc, dbms_lob.file_readonly);
     dbms_lob.loadblobfromfile(bdoc,src_loc,dbms_lob.lobmaxsize,src_offset,dst_offset);
     dbms_lob.fileclose(src_loc);
     amount := dbms_lob.getLength(bdoc);
     dbms_lob.copy(document,bdoc,amount,1,1);
     document_type := 'application/pdf; name=attach.pdf';
end Create_File_Attachment;Oracle Report created the PDF file correctly (original.pdf).
I tried to attach the PDF into my Workflow.
I can see the file is attached (attach.pdf), but it cannot be opened.
The Adobe shows : 'A drawing error occured.' each time I open the attachment.
I compare the original.pdf and the attach.pdf
However, there is one specific difference
- in original.pdf, the line started with '.' (single period)
in attach.pdf, the line is started with '..' (two periods)
Thus the attachment cannot be opened.
After I delete the period, it can be opened.
Question:
- Has someone ever succeed in attaching the PDF created from Report?
- Are the codes above is wrong?
- Or perhaps the DBMS_LOB.LOADBLOBFROMFILE always double the single period on front of the line?
- Is there any solution on this?
Note:
I have succeed in attaching PDF files unless the PDF created by the Report.
Sorry for the long post.
Please help. It is very urgent.
Any help is appreciated.
Many thanks,
Buntoro

Hi,
Please help. It is very urgent.
I am using Oracle Developer 10gR2, Oracle Report 10.1.2 on Windows 2000.
I would like to attach the PDF file created by Oracle Report to the Notification sent from Workflow.
I use the following package procedure in my Workflow.
procedure Create_File_Attachment (document_id   in varchar2, display_type in varchar2,
                                                                                     document      in out blob, document_type in out varchar2)
is
     l_itemtype          varchar2(100);
     l_itemkey           varchar2(100);
     l_output_directory varchar2(30);
     l_filename          varchar2(255);
     src_loc             bfile;
     bdoc                blob;
     src_offset          number := 1;
     dst_offset          number := 1;
     amount              number;
begin
     l_itemtype := substr(document_id, 1, instr(document_id, ':') - 1);
     l_itemkey := substr(document_id, instr(document_id, ':') + 1, length(document_id) - 2);
     l_output_directory := 'USR_TMP_DIR';
     l_filename := Wf_Engine.GetItemAttrText(l_itemtype, l_itemkey, 'ATR_FILENAME');
     src_loc := bfilename(l_output_directory,l_filename);
     dbms_lob.createTemporary(bdoc, FALSE, dbms_lob.call);
     dbms_lob.fileopen(src_loc, dbms_lob.file_readonly);
     dbms_lob.loadblobfromfile(bdoc,src_loc,dbms_lob.lobmaxsize,src_offset,dst_offset);
     dbms_lob.fileclose(src_loc);
     amount := dbms_lob.getLength(bdoc);
     dbms_lob.copy(document,bdoc,amount,1,1);
     document_type := 'application/pdf; name=attach.pdf';
end Create_File_Attachment;Oracle Report created the PDF file correctly (original.pdf).
I tried to attach the PDF into my Workflow.
I can see the file is attached (attach.pdf), but it cannot be opened.
The Adobe shows : 'A drawing error occured.' each time I open the attachment.
I compare the original.pdf and the attach.pdf
However, there is one specific difference
- in original.pdf, the line started with '.' (single period)
in attach.pdf, the line is started with '..' (two periods)
Thus the attachment cannot be opened.
After I delete the period, it can be opened.
Question:
- Has someone ever succeed in attaching the PDF created from Report?
- Are the codes above is wrong?
- Or perhaps the DBMS_LOB.LOADBLOBFROMFILE always double the single period on front of the line?
- Is there any solution on this?
Note:
I have succeed in attaching PDF files unless the PDF created by the Report.
Sorry for the long post.
Please help. It is very urgent.
Any help is appreciated.
Many thanks,
Buntoro

Using dbms_lob

Hi,
I have a need to open blob_content files from wwv_document$ and read/print them in a portlet. Can i do that using dbms_blob?. If so can somebody guide me the steps to follow? Else is there any other way sicne the files are really huge and i need to read from DB only.
Thanks in advance
null

A lot of the answer to your question depends on what is in your BLOB and what you are trying to do with it. If you can post more details about your end goals.. and what is being stored in your documents (MS Word Docs, Random Binary Files, Images, Text files... etc) I can post specific details about what statements to use.
In general you can use DBMS_LOB.READ to pull information directly out of a BLOB. See the Packages Reference documentation for details about the syntax. When you need to pass the BLOB locator, that is just what you get when you do a simple select on the BLOB_CONTENT column in the WWDOC_DOCUMENT$ table.

Using dbms_lob to load image into table

I am trying to load a set of images from my DB drive into a table. This works fine when I try to load only 1 record. If I try to load more than 1 record, first gets created but I get this error, and it doesn't load the images for the rest of them.
ORA-22297:     warning: Open LOBs exist at transaction commit time
Cause:     An attempt was made to commit a transaction with open LOBs at transaction commit time.
Action:     This is just a warning. The transaction was commited successfully, but any domain or functional indexes on the open LOBs were not updated. You may want to rebuild those indexes.
Am I missing something in the code that's needed?
in_file UTL_FILE.FILE_TYPE;
bf bfile;
b blob;
src_offset integer := 1;
dest_offset integer := 1;
CURSOR get_pics is select id from emp;
BEGIN
FOR x in get_pics LOOP
BEGIN
insert into stu_pic(id,student_picture)
values(x.id,empty_blob()) returning student_picture into b;
l_picture_uploaded := 'Y';
bf := bfilename('INTERFACES',x.student_id || '.' || p_image_type);
dbms_lob.fileopen(bf,dbms_lob.file_readonly);
dbms_lob.open(b,dbms_lob.lob_readwrite);
dbms_lob.loadBlobFromFile(b,bf,dbms_lob.lobmaxsize,dest_offset,src_offset);
dbms_lob.close(b);
dbms_lob.fileclose(bf);
EXCEPTION when dup_val_on_index then null;
END;
END LOOP;
END;

There are two methods you can use.
1. Create an external table with those images(BLOB column) and then use that external table to insert into another table.
Demo as follows:
This is my pdf files
C:\Saubhik\Assembly\Books\Algorithm>dir *.pdf
Volume in drive C has no label.
Volume Serial Number is 6806-ABBD
Directory of C:\Saubhik\Assembly\Books\Algorithm
08/16/2009 02:11 PM         1,208,247 algorithms.pdf
08/17/2009 01:05 PM        13,119,033 fci4all.com.Introduction_to_the
d_Analysis_of_Algorithms.pdf
09/04/2009 06:58 PM        30,375,002 sedgewick-algorithms.pdf
               3 File(s)     44,702,282 bytes
               0 Dir(s)   7,474,593,792 bytes free
C:\Saubhik\Assembly\Books\Algorithm>This is my file with which I'll load the pdf files as BLOB
C:\Saubhik\Assembly\Books\Algorithm>type mypdfs.txt
Algorithms.pdf,algorithms.pdf
Sedgewick-Algorithms.pdf,sedgewick-algorithms.pdf
C:\Saubhik\Assembly\Books\Algorithm>Now the actual code
SQL> /* This is my directory object */
SQL> CREATE or REPLACE DIRECTORY saubhik AS 'C:\Saubhik\Assembly\Books\Algorithm';
Directory created.
SQL> /* Now my external table */
SQL> /* This table contains two columns. 1.pdfname contains the name of the file
DOC>   and 2.pdfFile is a BLOB column contains the actual pdf*/
SQL> CREATE TABLE mypdf_external (pdfname VARCHAR2(50),pdfFile BLOB)
2         ORGANIZATION EXTERNAL (
3           TYPE ORACLE_LOADER
4            DEFAULT DIRECTORY saubhik
5            ACCESS PARAMETERS (
6              RECORDS DELIMITED BY NEWLINE
7              BADFILE saubhik:'lob_tab_%a_%p.bad'
8              LOGFILE saubhik:'lob_tab_%a_%p.log'
9              FIELDS TERMINATED BY ','
10              MISSING FIELD VALUES ARE NULL
11               (pdfname char(100),blob_file_name CHAR(100))
12              COLUMN TRANSFORMS (pdfFile FROM lobfile(blob_file_name) FROM (saubhik) BLOB)
13            )
14            LOCATION('mypdfs.txt')
15         )
16         REJECT LIMIT UNLIMITED;
Table created.
SQL> SELECT pdfname,DBMS_LOB.getlength(pdfFile) pdfFileLength
2 FROM   mypdf_external;
PDFNAME                                            PDFFILELENGTH
Algorithms.pdf                                           1208247
Sedgewick-Algorithms.pdf                                30375002
SQL> Now, you can use this table for any operation very easily. Even for your loading into another table!.
2. Use of DBMS_LOB like this
/* Loading a image Winter.jpg in the BLOB column as BLOB!*/
DECLARE
v_src_blob_locator BFILE := BFILENAME('SAUBHIK', 'Winter.jpg');
v_amount_to_load   INTEGER := 4000;
dest_lob_loc BLOB;
BEGIN
--Insert a empty row with id 1
INSERT INTO test_my_blob_clob VALUES(1,EMPTY_BLOB(),EMPTY_CLOB())
   RETURNING BLOB_COL INTO dest_lob_loc;
DBMS_LOB.open(v_src_blob_locator, DBMS_LOB.lob_readonly);
v_amount_to_load := DBMS_LOB.getlength(v_src_blob_locator);
DBMS_LOB.loadfromfile(dest_lob_loc, v_src_blob_locator, v_amount_to_load);
DBMS_LOB.close(v_src_blob_locator);
COMMIT;
--id=1 is created with Winter.jpg populated in BLOB_COL and CLOB_COL is empty.
END;Now user this code to create a procedure with parameter and use that in loop.

Using DBMS_LOB.LOADCLOBFROMFILE

Dear all,
I got some difficulty in trying to use DBMS_LOB.LOADCLOBFROMFILE. Suppose I have this procedure that load an OS file into a CLOB and read, however I keep getting error saying that
ERROR at line 1:
ORA-22275: invalid LOB locator specified
ORA-06512: at "SYS.DBMS_LOB", line 890
ORA-06512: at "HR.SOME_PROC", line 14
ORA-06512: at line 1This is the procedure:
create or replace procedure some_proc is
note_clob clob;
note_bfile bfile;
note_var varchar2(10000);
warning int;
dest_off int:=1;
src_off int:=1;
lang_ctx int:=0;
amount int:=dbms_lob.lobmaxsize;
begin
note_clob:=empty_clob();
note_bfile:=bfilename('TEMP_DIR','note.txt');
dbms_lob.fileopen(note_bfile);
dbms_lob.loadclobfromfile(note_clob,note_bfile,1000,dest_off,src_off,0,lang_ctx,warning);
--dbms_lob.read(note_clob,amount,1,note_var);
dbms_lob.fileclose(note_bfile);
--dbms_output.put_line(note_var);
end some_proc;
/I comment out the part that reads and prints for debugging purpose. Could anybody point me out where did I do wrong on LOADCLOBFROMFILE?
best regards,
Val

Specify below line before loading into target...
DBMS_LOB.CREATETEMPORARY(note_clob,true);

DBMS_LOB Package for CLOB Issues

I was wondering if any of you have worked with DBMS_LOB
packages. I wrote a procedure that will be invoked from a 'C'
program. I was first compiling the procedure as follows:
procedure <procedurename> (c_text out char, length in number)
declare c_lob CLOB;
begin
SELECT lob_locator_column into c_lob from <table>
WHERE
<table>.id = '1';
dbms_lob.read(c_lob,length,1,c_text)
end;
When I compile this program I am getting an error "length cannot
be used as a target". Have any of you seen this problem?
Right now I am getting around by declaring another variable and
assigning the input length to the variable and passing it into
DBMS_LOB.
Another issue I have is that the DBMS package is returning the
length of the clob to be an "INTEGER". What happens if the clob
length is greater than 32767?
null

I guess you are using a reserved word..
Bala Vanukuru (guest) wrote:
: I was wondering if any of you have worked with DBMS_LOB
: packages. I wrote a procedure that will be invoked from a 'C'
: program. I was first compiling the procedure as follows:
: procedure <procedurename> (c_text out char, length in number)
: declare c_lob CLOB;
: begin
: SELECT lob_locator_column into c_lob from <table>
: WHERE
: <table>.id = '1';
: dbms_lob.read(c_lob,length,1,c_text)
: end;
: When I compile this program I am getting an error "length
cannot
: be used as a target". Have any of you seen this problem?
: Right now I am getting around by declaring another variable
and
: assigning the input length to the variable and passing it into
: DBMS_LOB.
: Another issue I have is that the DBMS package is returning the
: length of the clob to be an "INTEGER". What happens if the
clob
: length is greater than 32767?
null

Dbms_lob package

i am using this method dbms_lob.getlength(column name) from table name;
as far as i know this column can be a clob column or blob column or bfile column
i have a row in these columns inserted via java at the sql prompt i just want to see the length of the row of each of these cols
when i say
dbms_lob.getlength(column name) from table name in case of a bfile or a clob column it works perfectly and shows me the length for the row
but with blob i get the following error
non existing directory or file for getlength
null

No insert. You have to insert it by writing the part before then insert, writing the new portion, and then write the part after then place you inserted.

Using DBMS_LOB.COPY - (ORA-22275)

Hi All,
I need to copy BLOB value from one table to another.
For that i am using DBMS_LOB.COPY.
I am not sure if this is the right approach. If not, can someone help me out.
Mentioned below is my sample procedure:
CREATE OR REPLACE PROCEDURE INS_UPD_BLOB
i_ID number,
o_OutputStatus OUT NUMBER,
o_OutputMessage OUT VARCHAR2
as
v_blob_data_d blob;
v_blob_data_s blob;
amt INTEGER := 4000;
begin
select BLOB_DATA
into v_blob_data_d
from blob_test_dest -- My Destination Table
where id = i_ID
for update;
select BLOB_DATA
into v_blob_data_s
from blob_test -- My Source Table
where id = i_ID;
DBMS_LOB.COPY(v_blob_data_d, v_blob_data_s, amt);
o_OutputStatus := 0;
o_OutputMessage := 'SUCCESS';
EXCEPTION
WHEN OTHERS THEN
o_OutputStatus := -1;
o_OutputMessage := 'Procedure ins_upd_blob Failed at step no:- '||v_ErrorFlag|| ' SQL ERROR:- '||SUBSTR(SQLERRM,1,100);
END;
After execution i am getting following error:
ORA-06502: PL/SQL: numeric or value error: invalid LOB locator specified: ORA-22275
Thanks,
Srikanth

how about using merge instead of dbms_lob package?
CREATE OR REPLACE PROCEDURE INS_UPD_BLOB
i_ID number,
o_OutputStatus OUT NUMBER,
o_OutputMessage OUT VARCHAR2)
as
v_blob_data_d blob;
v_blob_data_s blob;
amt INTEGER := 4000;
begin
merge into blob_test_dest b1
using (select id, blob_data from blob_test) b2
on (b1.id = i_id and b1.id = b2.id)
when not matched then insert(b1.id, b1.blob_data) values(b2.id,b2.blob_data)
when matched then update set b1.blob_data = b2.blob_data;
END;
/

Using dbms_lob in trigger 10gR2

Hello,
I'm trying to read from a clob using dbms_lob in my trigger and assigning the value to a variable. My trigger is compiling fine, but it doesn't seem to be working.
I'm using 10gR2. Am I misunderstanding how to read from/assign to a variable in a trigger?
Line from trigger code:
v_serial_start := dbms_lob.instr(:new.search_xml_clob,'serial=') + 8;
Thanks,
Mimi

Here's a quick example that works fine for me....
ME_XE?create table clobberin_tyme
2 (
3     some_column    number,
4     variable_value number default 0,
5     some_clob      clob default empty_clob()
6 );
Table created.
Elapsed: 00:00:03.98
ME_XE?
ME_XE?
ME_XE?create or replace trigger clobberin_tymeT01
2 before insert or update on clobberin_tyme
3 for each row
4 declare
5     v_serial_start    number;
6 begin
7
8     v_serial_start       := dbms_lob.instr(:new.some_clob,'serial=') + 8;
9
10     :new.variable_value := v_serial_start;
11
12 end;
13 /
Trigger created.
Elapsed: 00:00:02.62
ME_XE?
ME_XE?
ME_XE?insert into clobberin_tyme (some_column) values (1);
1 row created.
Elapsed: 00:00:00.31
ME_XE?
ME_XE?select * from clobberin_tyme;
       SOME_COLUMN     VARIABLE_VALUE SOME_CLOB
                 1                  8
1 row selected.
Elapsed: 00:00:00.17
ME_XE?
ME_XE?update clobberin_tyme
2     set   some_column = 2,
3           some_clob = 'hello world serial= coco puffs, i am cucu for them';
1 row updated.
Elapsed: 00:00:00.25
ME_XE?
ME_XE?select * from clobberin_tyme;
       SOME_COLUMN     VARIABLE_VALUE SOME_CLOB
                 2                 21 hello world serial= coco puffs, i am cucu for them
1 row selected.
Elapsed: 00:00:00.01

Error while using dbms_lob.fileopen

Hi,
I am getting the below error when executing the code given below,
CODE:-
DECLARE
l_bfile BFILE;
l_data BLOB;
BEGIN
DBMS_LOB.createtemporary (lob_loc => l_data,
CACHE => TRUE,
dur => DBMS_LOB.CALL);
l_bfile := BFILENAME('/home/lt/write','MIA00137.inp');
DBMS_LOB.fileopen(l_bfile, DBMS_LOB.file_readonly);
END;
ERROR:-
ORA-22285: non-existent directory or file for FILEOPEN operation
ORA-06512: at "SYS.DBMS_LOB", line 523
ORA-06512: at line 12
I am using the directory path instead of using the directory name, which is my requirement. How can I overcome the above error.
Thanks
RKR

You should use a directory object not a file system directory.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_5007.htm#sthref6399
Bye Alessandro

DBMS_LOB

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