diff --git a/pandora_console/include/functions_graph.php b/pandora_console/include/functions_graph.php
index 8557911016..77d87e8330 100755
--- a/pandora_console/include/functions_graph.php
+++ b/pandora_console/include/functions_graph.php
@@ -1753,6 +1753,7 @@ function grafico_db_agentes_purge ($id_agent, $width = 380, $height = 300) {
 	global $config;
 	global $graphic_type;
 	
+	$filter = array();
 	
 	if ($id_agent < 1) {
 		$query = "";
@@ -1760,18 +1761,9 @@ function grafico_db_agentes_purge ($id_agent, $width = 380, $height = 300) {
 	else {
 		$modules = agents_get_modules($id_agent);
 		$module_ids = array_keys($modules);
-
-		if (!empty($module_ids)) {
-			$module_ids_str = implode(",", $module_ids);
-			
-			if (empty($module_ids_str))
-				$module_ids_str = "0";
-		}
-		else {
-			$module_ids_str = "0";
-		}
-
-		$query = sprintf (" AND id_agente_modulo IN (%s)", $module_ids_str);
+		
+		if (!empty($module_ids))
+			$filter['id_agente_modulo'] = $module_ids;
 	}
 	
 	// All data (now)
@@ -1790,101 +1782,56 @@ function grafico_db_agentes_purge ($id_agent, $width = 380, $height = 300) {
 	$time_3months = $time_now - SECONDS_3MONTHS;
 	
 	$query_error = false;
-
+	
 	// Data from 1 day ago
-	$sql_1day = sprintf("SELECT COUNT(*)
-								+ (SELECT COUNT(*)
-									FROM tagente_datos_string
-									WHERE utimestamp >= %d %s)
-								+ (SELECT COUNT(*)
-									FROM tagente_datos_log4x
-									WHERE utimestamp >= %d %s)
-						FROM tagente_datos
-						WHERE utimestamp > %d %s",
-						$time_1day, $query,
-						$time_1day, $query,
-						$time_1day, $query);
-	$num_1day = db_get_sql($sql_1day);
-
+	$filter['utimestamp'] = '>' . $time_1day;
+	$num_1day = 0;
+	$num_1day += (int) db_get_value_filter('count(*)', 'tagente_datos', $filter);
+	$num_1day += (int) db_get_value_filter('count(*)', 'tagente_datos_string', $filter);
+	$num_1day += (int) db_get_value_filter('count(*)', 'tagente_datos_log4x', $filter);
+	
 	if ($num_1day !== false) {
 		// Data from 1 week ago
-		$sql_1week = sprintf("SELECT COUNT(*)
-									+ (SELECT COUNT(*)
-										FROM tagente_datos_string
-										WHERE utimestamp >= %d %s)
-									+ (SELECT COUNT(*)
-										FROM tagente_datos_log4x
-										WHERE utimestamp >= %d %s)
-							FROM tagente_datos
-							WHERE utimestamp >= %d %s",
-							$time_1week, $query,
-							$time_1week, $query,
-							$time_1week, $query);
-		$num_1week = db_get_sql($sql_1week);
-
+		$filter['utimestamp'] = '>' . $time_1week;
+		$num_1week = 0;
+		$num_1week += (int) db_get_value_filter('count(*)', 'tagente_datos', $filter);
+		$num_1week += (int) db_get_value_filter('count(*)', 'tagente_datos_string', $filter);
+		$num_1week += (int) db_get_value_filter('count(*)', 'tagente_datos_log4x', $filter);
+		
 		if ($num_1week !== false) {
 			// Data from 1 month ago
-			$sql_1month = sprintf("SELECT COUNT(*)
-										+ (SELECT COUNT(*)
-											FROM tagente_datos_string
-											WHERE utimestamp >= %d %s)
-										+ (SELECT COUNT(*)
-											FROM tagente_datos_log4x
-											WHERE utimestamp >= %d %s)
-								FROM tagente_datos
-								WHERE utimestamp >= %d %s",
-								$time_1month, $query,
-								$time_1month, $query,
-								$time_1month, $query);
-			$num_1month = db_get_sql($sql_1month);
-
+			$filter['utimestamp'] = '>' . $time_1month;
+			$num_1month = 0;
+			$num_1month += (int) db_get_value_filter('count(*)', 'tagente_datos', $filter);
+			$num_1month += (int) db_get_value_filter('count(*)', 'tagente_datos_string', $filter);
+			$num_1month += (int) db_get_value_filter('count(*)', 'tagente_datos_log4x', $filter);
+			
 			if ($num_1month !== false) {
 				// Data from 3 months ago
-				$sql_3months = sprintf("SELECT COUNT(*)
-												+ (SELECT COUNT(*)
-													FROM tagente_datos_string
-													WHERE utimestamp >= %d %s)
-												+ (SELECT COUNT(*)
-													FROM tagente_datos_log4x
-													WHERE utimestamp >= %d %s)
-										FROM tagente_datos
-										WHERE utimestamp >= %d %s",
-										$time_3months, $query,
-										$time_3months, $query,
-										$time_3months, $query);
-				$num_3months = db_get_sql($sql_3months);
-
+				$filter['utimestamp'] = '>' . $time_3months;
+				$num_3months = 0;
+				$num_3months += (int) db_get_value_filter('count(*)', 'tagente_datos', $filter);
+				$num_3months += (int) db_get_value_filter('count(*)', 'tagente_datos_string', $filter);
+				$num_3months += (int) db_get_value_filter('count(*)', 'tagente_datos_log4x', $filter);
+				
 				if ($num_3months !== false) {
 					// All data
-					$sql_all = sprintf("SELECT COUNT(*)
-												+ (SELECT COUNT(*)
-													FROM tagente_datos_string
-													WHERE 1=1 %s)
-												+ (SELECT COUNT(*)
-													FROM tagente_datos_log4x
-													WHERE 1=1 %s)
-										FROM tagente_datos
-										WHERE 1=1 %s",
-										$query, $query, $query);
-					$num_all = db_get_sql($sql_all);
-
+					unset($filter['utimestamp']);
+					$num_all = 0;
+					$num_all += (int) db_get_value_sql('SELECT count(*) FROM tagente_datos');
+					$num_all += (int) db_get_value_sql('SELECT count(*) FROM tagente_datos_string');
+					$num_all += (int) db_get_value_sql('SELECT count(*) FROM tagente_datos_log4x');
+					
 					if ($num_all !== false) {
 						$num_older = $num_all - $num_3months;
-
+						
 						if ($config['history_db_enabled'] == 1) {
 							// All data in common and history database
-							$sql_all_w_history = sprintf("SELECT COUNT(*)
-																+ (SELECT COUNT(*)
-																	FROM tagente_datos_string
-																	WHERE 1=1 %s)
-																+ (SELECT COUNT(*)
-																	FROM tagente_datos_log4x
-																	WHERE 1=1 %s)
-														FROM tagente_datos
-														WHERE 1=1 %s",
-														$query, $query, $query);
-							$num_all_w_history = db_get_sql($sql_all_w_history, 0, true);
-
+							$num_all_w_history = 0;
+							$num_all_w_history += (int) db_get_value_sql('SELECT count(*) FROM tagente_datos', true);
+							$num_all_w_history += (int) db_get_value_sql('SELECT count(*) FROM tagente_datos_string', true);
+							$num_all_w_history += (int) db_get_value_sql('SELECT count(*) FROM tagente_datos_log4x', true);
+							
 							if ($num_all_w_history !== false) {
 								$num_history = $num_all_w_history - $num_all;
 							} else {
@@ -1906,7 +1853,7 @@ function grafico_db_agentes_purge ($id_agent, $width = 380, $height = 300) {
 	} else {
 		$query_error = true;
 	}
-
+	
 	// Error
 	if ($query_error || $num_older < 0 || ($config['history_db_enabled'] == 1 && $num_history < 0)
 			|| (empty($num_1day) && empty($num_1week) && empty($num_1month)