How to convert clob column to long

Question

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

Answer 1

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.