How to write oracle insert script with one field as CLOB?

Question

i want to create an insert script which will be used only to insert one record into one table.

It has 5 columns and one of them is of type CLOB.

when ever i am trying it says can not insert string is so long . larger than 4000.

i need an insert statement with clob as one field.

insert into tblTableName (id, name, description, accountNumber, fathername)
values(1,N'Name', CLOB'some very long string here, greater than 4000 characters', 23,  'John')

Please advice.

Thanks in advance Ashish

Answer 1

Keep in mind that SQL strings can not be larger than 4000 bytes, while Pl/SQL can have strings as large as 32767 bytes. see below for an example of inserting a large string via an anonymous block which I believe will do everything you need it to do.

note I changed the varchar2(32000) to CLOB

set serveroutput on    
CREATE TABLE TESTCLOB(ID  NUMBER, C  CLOB, d varchar2(4000));

DECLARE
 REALLYBIGTEXTSTRING CLOB := '123';
 i int;
BEGIN

    WHILE LENGTH(REALLYBIGTEXTSTRING) <= 60000 LOOP
        REALLYBIGTEXTSTRING := REALLYBIGTEXTSTRING || '000000000000000000000000000000000';
    END LOOP;

   INSERT INTO TESTCLOB(ID, C,D) VALUES(0, REALLYBIGTEXTSTRING, 'done');
    DBms_output.put_line('I have finished inputting your clob: '|| length(REALLYBIGTEXTSTRING)); 
end ;
/

select * from TESTCLOB ;

--> "I have finished inputting your clob: 60030"