diff --git a/database/oracle/mode/librarycacheusage.pm b/database/oracle/mode/librarycacheusage.pm
new file mode 100644
index 000000000..18a58c8df
--- /dev/null
+++ b/database/oracle/mode/librarycacheusage.pm
@@ -0,0 +1,160 @@
+#
+# Copyright 2019 Centreon (http://www.centreon.com/)
+#
+# Centreon is a full-fledged industry-strength solution that meets
+# the needs in IT infrastructure and application monitoring for
+# service performance.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+package database::oracle::mode::librarycacheusage;
+
+use base qw(centreon::plugins::templates::counter);
+
+use strict;
+use warnings;
+use Digest::MD5 qw(md5_hex);
+
+sub custom_pin_hitratio_calc {
+    my ($self, %options) = @_;
+
+    my $delta_total = ($options{new_datas}->{$self->{instance} . '_gets'} - $options{old_datas}->{$self->{instance} . '_gets'});
+    my $delta_cache = ($options{new_datas}->{$self->{instance} . '_get_hits'} - $options{old_datas}->{$self->{instance} . '_get_hits'});
+    $self->{result_values}->{hit_ratio} = $delta_total ? (100 * $delta_cache / $delta_total) : 0;
+
+    return 0;
+}
+
+sub custom_get_hitratio_calc {
+    my ($self, %options) = @_;
+
+    my $delta_total = ($options{new_datas}->{$self->{instance} . '_gets'} - $options{old_datas}->{$self->{instance} . '_gets'});
+    my $delta_cache = ($options{new_datas}->{$self->{instance} . '_get_hits'} - $options{old_datas}->{$self->{instance} . '_get_hits'});
+    $self->{result_values}->{hit_ratio} = $delta_total ? (100 * $delta_cache / $delta_total) : 0;
+
+    return 0;
+}
+
+sub set_counters {
+    my ($self, %options) = @_;
+
+    $self->{maps_counters_type} = [
+        { name => 'global', cb_prefix_output => 'prefix_global_output', type => 0 },
+    ];
+
+    $self->{maps_counters}->{global} = [
+        { label => 'get-hits', nlabel => 'library.cache.get.hitratio.percentage', set => {
+                key_values => [ { name => 'get_hits', diff => 1 }, { name => 'gets', diff => 1 } ],
+                closure_custom_calc => $self->can('custom_get_hitratio_calc'),
+                output_template => 'get hit ratio %.2f%%',
+                output_use => 'hit_ratio', threshold_use => 'hit_ratio',
+                perfdatas => [
+                    { label => 'get_hit_ratio', value => 'hit_ratio', template => '%.2f', min => 0, max => 100, unit => '%' },
+                ],
+            }
+        },
+        { label => 'pin-hits', nlabel => 'library.cache.pin.hitratio.percentage', set => {
+                key_values => [ { name => 'pin_hits', diff => 1 }, { name => 'pins', diff => 1 } ],
+                closure_custom_calc => $self->can('custom_pin_hitratio_calc'),
+                output_template => 'pin hit ratio %.2f%%',
+                output_use => 'hit_ratio', threshold_use => 'hit_ratio',
+                perfdatas => [
+                    { label => 'pin_hit_ratio', value => 'hit_ratio', template => '%.2f', min => 0, max => 100, unit => '%' },
+                ],
+            }
+        },
+        { label => 'reloads', nlabel => 'library.cache.reloads.persecond', set => {
+                key_values => [ { name => 'reloads', diff => 1 }, ],
+                per_second => 1,
+                output_template => 'reloads %.2f/s',
+                perfdatas => [
+                    { label => 'reloads', value => 'reloads_per_second', template => '%.2f', min => 0, unit => '/s' },
+                ],
+            }
+        },
+        { label => 'invalids', nlabel => 'library.cache.invalids.persecond', set => {
+                key_values => [ { name => 'reloads', diff => 1 }, ],
+                per_second => 1,
+                output_template => 'invalids %.2f/s',
+                perfdatas => [
+                    { label => 'invalids', value => 'invalids_per_second', template => '%.2f', min => 0, unit => '/s' },
+                ],
+            }
+        },
+    ];
+}
+
+sub prefix_global_output {
+    my ($self, %options) = @_;
+
+    return 'SGA library cache ';
+}
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options, statefile => 1, force_new_perfdata => 1);
+    bless $self, $class;
+
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments => {
+    });
+    
+    return $self;
+}
+
+sub manage_selection {
+    my ($self, %options) = @_;    
+
+    my $query = q{
+        SELECT SUM(gethits), SUM(gets), SUM(pinhits), SUM(pins),
+            SUM(reloads), SUM(invalidations)
+        FROM v$librarycache
+    };
+
+    $options{sql}->connect();
+    $options{sql}->query(query => $query);
+    my @result = $options{sql}->fetchrow_array();
+    $options{sql}->disconnect();
+    
+    $self->{global} = {
+        get_hits => $result[0],
+        gets => $result[1],
+        pin_hits => $result[2],
+        pins => $result[3],
+        reloads => $result[4],
+        invalid => $result[5],
+    };
+
+    $self->{cache_name} = "oracle_" . $self->{mode} . '_' . $options{sql}->get_unique_id4save() . '_' .
+        (defined($self->{option_results}->{filter_counters}) ? md5_hex($self->{option_results}->{filter_counters}) : md5_hex('all'));
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check Oracle library cache usage.
+
+=over 8
+
+=item B<--warning-*> B<--critical-*> 
+
+Thresholds.
+Can be: 'get-hits', 'pin-hits', 'reloads', 'invalid'.
+
+=back
+
+=cut
diff --git a/database/oracle/plugin.pm b/database/oracle/plugin.pm
index e75dfcf97..d86e6733d 100644
--- a/database/oracle/plugin.pm
+++ b/database/oracle/plugin.pm
@@ -40,6 +40,7 @@ sub new {
         'datacache-hitratio'       => 'database::oracle::mode::datacachehitratio',
         'event-waits-usage'        => 'database::oracle::mode::eventwaitsusage',
         'invalid-object'           => 'database::oracle::mode::invalidobject',
+        'library-cache-usage'      => 'database::oracle::mode::librarycacheusage',
         'list-asm-diskgroups'      => 'database::oracle::mode::listasmdiskgroups',
         'long-queries'             => 'database::oracle::mode::longqueries',
         'password-expiration'      => 'database::oracle::mode::passwordexpiration',
@@ -66,10 +67,10 @@ sub init {
     my ($self, %options) = @_;
 
     $self->{options}->add_options(arguments => {
-            'hostname:s@'   => { name => 'hostname' },
-            'port:s@'       => { name => 'port' },
-            'sid:s'         => { name => 'sid' },
-            'servicename:s' => { name => 'servicename' },
+        'hostname:s@'   => { name => 'hostname' },
+        'port:s@'       => { name => 'port' },
+        'sid:s'         => { name => 'sid' },
+        'servicename:s' => { name => 'servicename' },
     });
 
     $self->{options}->parse_options();