Print CLOB content out as is in Oracle SQL script

Question

To start with here is the bigger picture of the task I\'m trying to do. I need to create a xml file from the results of the particular SQL request and store it in a file on the

Answer 1

One possible approach is to do the following:

1. Create a database table with a single column and row of type CLOB.
2. On server, insert the produced XML into that table.

3. On client run the SQL*PLus script like this:

   SET WRAP OFF  
   SET HEADING OFF  
   SET ECHO OFF  
   SPOOL file_name.xml
   
   SELECT your\_clob\_column FROM your\_table;
   
   SPOOL OFF
   

That will dump your XML into file_name.xml After that, you will need to truncate you table by issuing:

TRUNCATE TABLE your\_table DROP STORAGE;

otherwise the table won't shrink even if you delete the line with CLOB.

Answer 2

Check APC's CLOB workaround for dbms_output on http://forums.oracle.com/forums/thread.jspa?threadID=306557

Answer 3

Why don't you use DBMS_OUTPUT.PUT instead of DBMS_OUTPUT.PUT_LINE? Give it a try. The trick is to add a newline character after printing your content. You can do it by calling DBMS_OUTPUT.NEW_LINE.

Answer 4

You can add a delimiter and print out 254 characters, then in notepad++ (in extended mode ~\r\n) replace this delimiter :

 loop exit when l_offset > dbms_lob.getlength(v_xml);
   DBMS_OUTPUT.PUT_LINE (dbms_lob.substr( v_xml, 254, l_offset) || '~');
   l_offset := l_offset + 255;
  end loop;