Uploading CSV using browse item ( getting no data found error )

Question

Hi,
i am using below procedure to upload CSV into my table.
CSV is having null values in some places ex: 1,
2,0.999
3,
4,0.696
below procedure working fine when i am uploading CSV like : 1,0
2,0.999
3,0
4,0.696.
My table is having only two columns, and i am getting no data found error when uploading null values CSV file.
I went through Import data in excel to database table but no use..
Please help me on this.
Procedure
===========
DECLARE
v_blob_data       BLOB;
v_blob_len        NUMBER;
v_position        NUMBER;
v_raw_chunk       RAW(10000);
v_char   CHAR(1);
c_chunk_len  number := 1;
v_line  VARCHAR2 (32767) := NULL;
v_data_array  wwv_flow_global.vc_arr2;
BEGIN
-- Read data from wwv_flow_files
select blob_content into v_blob_data  from wwv_flow_files
where UPDATED_BY = (select max(UPDATED_BY) from wwv_flow_files where UPDATED_BY = :APP_USER)
AND id = (select max(id) from wwv_flow_files where updated_by = :APP_USER);
v_blob_len := dbms_lob.getlength(v_blob_data);
v_position := 1;
-- Read and convert binary to char
WHILE ( v_position <= v_blob_len ) LOOP
v_raw_chunk := dbms_lob.substr(v_blob_data,c_chunk_len,v_position);
v_char :=  chr(hex_to_decimal(rawtohex(v_raw_chunk)));
v_line := v_line || v_char;
v_position := v_position + c_chunk_len;
-- When a whole line is retrieved
IF v_char = CHR(10) THEN
-- Convert comma to : to use wwv_flow_utilities
  v_line := substr(v_line, 1, length(v_line)-2);
   v_line := REPLACE (v_line, ',', ':');
-- Convert each column separated by : into array of data
   v_data_array := wwv_flow_utilities.STRING_to_table (v_line);
-- Insert data into target table
   EXECUTE IMMEDIATE 'insert into table_name@Schema1 (col1,col2)
    values (:1,:2)'
    USING
      v_data_array(1),
      v_data_array(2);
      -- Clear out
   v_line := NULL;
  END IF;
END LOOP;
END;regards
Chandran
Edited by: Chandran on Sep 26, 2012 10:52 AM
Edited by: Chandran on Sep 26, 2012 10:25 PM
Edited by: Chandran on Sep 27, 2012 1:58 AM

Answer 1

Chandran,
You can use wwv_flow_utilities.array_element to avoid no_data_found error. The function does not raise errors. So, for the line which only have one array value when you expect 2, it may be useful.
EXECUTE IMMEDIATE 'insert into table_name@Schema1 (col1,col2)
    values (:1,:2)'
    USING
      wwv_flow_utilities.array_element(v_data_array,1),
      wwv_flow_utilities.array_element(v_data_array,2);Regards,
Christina