SQLPlus - spooling to multiple files from PL/SQL blocks

Question

I have a query that returns a lot of data into a CSV file. So much, in fact, that Excel can\'t open it - there are too many rows. Is there a way to control spool

Answer 1

Try this for a pure SQL*Plus solution...

set pagesize 0
set trimspool on  
set headsep off 
set feedback off
set echo off 
set verify off
set timing off
set linesize 4000

DEFINE rows_per_file = 50


-- Create an sql file that will create the individual result files
SET DEFINE OFF

SPOOL c:\temp\generate_one.sql

PROMPT COLUMN which_dynamic NEW_VALUE dynamic_filename
PROMPT

PROMPT SELECT 'c:\temp\run_#'||TO_CHAR( &1, 'fm000' )||'_result.txt' which_dynamic FROM dual
PROMPT /

PROMPT SPOOL &dynamic_filename

PROMPT SELECT *
PROMPT   FROM ( SELECT a.*, rownum rnum
PROMPT            FROM ( SELECT object_id FROM all_objects ORDER BY object_id ) a
PROMPT           WHERE rownum <= ( &2 * 50 ) )
PROMPT  WHERE rnum >= ( ( &3 - 1 ) * 50 ) + 1
PROMPT /

PROMPT SPOOL OFF

SPOOL OFF

SET DEFINE &


-- Define variable to hold number of rows
-- returned by the query
COLUMN num_rows NEW_VALUE v_num_rows

-- Find out how many rows there are to be
SELECT COUNT(*) num_rows
  FROM ( SELECT LEVEL num_files FROM dual CONNECT BY LEVEL <= 120 );


-- Create a master file with the correct number of sql files
SPOOL c:\temp\run_all.sql

SELECT '@c:\temp\generate_one.sql '||TO_CHAR( num_files )
                                   ||' '||TO_CHAR( num_files )
                                   ||' '||TO_CHAR( num_files ) file_name
  FROM ( SELECT LEVEL num_files 
           FROM dual 
        CONNECT BY LEVEL <= CEIL( &v_num_rows / &rows_per_file ) )
/

SPOOL OFF

-- Now run them all
@c:\temp\run_all.sql