if you have access to the file system on your database box you could do something like this: CREATE OR REPLACE DIRECTORY documents AS ‘C:\’; SET SERVEROUTPUT ON DECLARE l_file UTL_FILE.FILE_TYPE; l_clob CLOB; l_buffer VARCHAR2(32767); l_amount BINARY_INTEGER := 32767; l_pos INTEGER := 1; BEGIN SELECT col1 INTO l_clob FROM tab1 WHERE rownum = 1; l_file … Read more
The easiest way is to simply use the stmt.setString(position, xml); methods (for “small” strings which can be easily kept in Java memory), or try { java.sql.Clob clob = oracle.sql.CLOB.createTemporary( connection, false, oracle.sql.CLOB.DURATION_SESSION); clob.setString(1, xml); stmt.setClob(position, clob); stmt.execute(); } // Important! finally { clob.free(); }
Disable this warning by adding property below. For Spring application: spring.jpa.properties.hibernate.temp.use_jdbc_metadata_defaults=false Normal JPA: hibernate.temp.use_jdbc_metadata_defaults=false
Ok I will suppose a general use, first you have to download apache commons, there you will find an utility class named IOUtils which has a method named copy(); Now the solution is: get the input stream of your CLOB object using getAsciiStream() and pass it to the copy() method. InputStream in = clobObject.getAsciiStream(); StringWriter … Read more
This works select DBMS_LOB.substr(myColumn, 3000) from myTable
What are you using when operate with CLOB? In all events you can do it with PL/SQL DECLARE str varchar2(32767); BEGIN str := ‘Very-very-…-very-very-very-very-very-very long string value’; update t1 set col1 = str; END; / Proof link on SQLFiddle
This code should work: select * from table where dbms_lob.compare(aClobColumn, bClobColumn) = 0 PS: I haven’t tried running it as I am not having access to an Oracle instance at the moment. Reference: https://docs.oracle.com/database/121/ARPLS/d_lob.htm#ARPLS600