I am extremely confused, not for the first time in my life. I am sanitizing data in one of my databases, for demo purposes. Unfortunately, the demo data in question consists of BLOB files of up to 32MB in size, so I had to do a little trickery. The script below works like a charm, and itakes approximately 1 hour to complete. What confuses the heck out of me is the fact that the session is active, and I don't see any SQL in v$session: SQL> ed Wrote file afiedt.buf 1 select u.username,u.osuser,u.program,u.status, s.sql_text 2 from v$session u,v$sql s 3 where u.sid=27 and 4 u.sql_address=s.address and 5* u.sql_hash_value=s.hash_value SQL> / no rows selected SQL> Now, when I am not looking for SQL, the session is OK, and active: 1 select u.username,u.osuser,u.program,u.status 2 from v$session u 3* where u.sid=27 SQL> / USERNAME OSUSER ------------------------------ ------------------------------ PROGRAM STATUS ------------------------------------------------ -------- FCC mgogala perl@xxxxxxxxxxxxx (TNS V1-V3) ACTIVE 1* select event from v$session_wait where sid=27 SQL> / EVENT ---------------------------------------------------------------- SQL*Net more data from client So, I have an active session, which has one of those "idle" waits (joke will be apparent to anyone who takes the look at the script below) without executing any SQL? How is it possible? Here is the script: #!/usr/bin/perl -w use strict; use DBI; use Getopt::Long; my $user = "fcc"; my $passwd = "***"; my $db = "sales_demo"; my ( $rid,$file, $buffer, $ext ); my @rowids; # Parse command line options my $stat = GetOptions( "u|username=s" => \$user, "p|password=s" => \$passwd, "f|file=s" => \$file, "e|ext=s" => \$ext, "h|help|?" => \&usage ); if ( !defined($user) || !defined($passwd) || !defined($file) || !$stat ) { usage(); } $ext =~ tr/[a-z]/[A-Z]/; my $dbh = db_connect( $user, $passwd, $db ); # File is read as a whole open( FL, "<", $file ) or die "Cannot open $file for read:$!\n"; $/ = undef; $buffer = <FL>; # Get the rowids of the rows with the right documents my $SEL = "select rowid from invoice_doc where upper(doc_filename) like \'%$ext\'"; my $UPD = "update invoice_doc set doc_file=:FL where rowid=:RID"; my $sth = $dbh->prepare($SEL); $sth->execute(); while ( my @row = $sth->fetchrow_array() ) { ($rid) = @row; push @rowids, $rid; } my $upd = $dbh->prepare($UPD); $upd->bind_param( ":FL", $buffer, DBI::SQL_BLOB ); $upd->bind_param( ":RID", $rid ); foreach $rid (@rowids) { $upd->execute(); $dbh->commit(); } END { $dbh->disconnect() if defined($dbh); } sub db_connect { my ( $username, $passwd, $db ) = ( @_, $ENV{"TWO_TASK"} ); my $dbh = DBI->connect( "dbi:Oracle:$db", $username, $passwd ); $dbh->{AutoCommit} = 0; $dbh->{RaiseError} = 1; $dbh->{ora_check_sql} = 0; $dbh->{RowCacheSize} = 16; return ($dbh); } sub usage { print q(update_file -> updates blob field in the database USAGE:update_file -u=user -p=passwd -f=file -e=ext OPTIONS: -u oracle username -p password for the above -f file to read the BLOB data from -e extension to replace ); exit(0); } -- Mladen Gogala Oracle DBA -- //www.freelists.org/webpage/oracle-l