?? fig15_21.pl
字號(hào):
#!/usr/bin/perl
# Fig. 15.21: fig15_21.pl
# Program to delete a record from the database
use warnings;
use strict;
use DBI;
use DBD::ODBC;
my $dbh = DBI->connect( "dbi:ODBC:employeeDB", "", "",
{ RaiseError => 1 } );
print( "Enter the Employee ID number of the record ",
"you wish to delete: " );
chomp( my $IDdel = <STDIN> );
print( "Delete this record: ($IDdel)? (Y/N) " );
chomp( my $choice = <STDIN> );
if ( $choice eq 'Y' || $choice eq 'y' ) {
my $query = "DELETE FROM employee " .
"WHERE EmployeeID = '$IDdel'";
print( "$query \n\n" );
$dbh->do( $query );
}
my $sth = $dbh->prepare( q{ select * FROM employee } );
$sth->execute();
my @array;
while ( @array = $sth->fetchrow_array() ) {
write( STDOUT );
}
# Clean up
warn( $DBI::errstr ) if $DBI::err;
$dbh->disconnect();
$sth->finish();
format STDOUT =
@<<<<<<@<<<<<<<<<@<<<<<<<<<<@<<<<<@<<<<<<<<<<<
$array[ 0 ], $array[ 1 ], $array[ 2 ], $array[ 3 ], $array[ 4 ]
.
###########################################################################
# (C) Copyright 2001 by Deitel & Associates, Inc. and Prentice Hall. #
# All Rights Reserved. #
# #
# DISCLAIMER: The authors and publisher of this book have used their #
# best efforts in preparing the book. These efforts include the #
# development, research, and testing of the theories and programs #
# to determine their effectiveness. The authors and publisher make #
# no warranty of any kind, expressed or implied, with regard to these #
# programs or to the documentation contained in these books. The authors #
# and publisher shall not be liable in any event for incidental or #
# consequential damages in connection with, or arising out of, the #
# furnishing, performance, or use of these programs. #
###########################################################################
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