Read data from CLOB field

Question

Hello,
I have table ( table1 ) with clob field ( clob1 ).
Content of clob1 field is :
data01 data02 data03 12345 data04
data05 data06 data07 32131 data08
data09 data10 data11 43422 data12
data13 data14 data15 54534 data16
Content of clob1 field is imported from ASCII file. Number of records in ASCII file is variable.
How can I read each row separately from clob1 field?
Thanks

Answer 1

Here is an example of how it can be done.
Note you will have to have an end of line marker on each line including the last line.
In my case I have used the '@' symbol as a line delimiter
declare
v_clob clob := 'This is my@clob string which@is over a number@of lines@';
v_clob_length number;
v_read_pos number := 1;
v_subclob clob;
v_line varchar2(4000);
v_marker number;
begin
v_clob_length := dbms_lob.getlength(v_clob);
while  v_read_pos <= v_clob_length
loop
v_subclob := empty_clob();
-- make a clob of the smaller piece of data
v_subclob := dbms_lob.substr(v_clob,v_clob_length,v_read_pos);
-- find the position of the end of line marker
v_marker  := dbms_lob.instr(v_subclob,'@');
-- build a line from the subclob, removing the trailing end of line marker
v_line    := dbms_lob.substr(v_subclob,v_marker-1,1);
dbms_output.put_line(v_line);
--  increment the position from where to start reading the original clob
v_read_pos := v_read_pos+length(v_line)+1;
end loop;
end;This produces the following
This is my
clob string which
is over a number
of lines