diff --git a/LoadCSVData.pl b/LoadCSVData.pl
index 399091f..dbe0900 100644
--- a/LoadCSVData.pl
+++ b/LoadCSVData.pl
@@ -140,7 +140,7 @@ sub trxelab {
 	) or die getTimeStamp("log") . " - pid $$ >> $DBI::errstr";
 
 	$sth->execute();
-	if ( $sth->rows < 0 ) {
+	if ( $sth->rows eq 0 ) {
 		die getTimeStamp("log") . " - pid $$ >> No unit ftp params selected.\n";
 	}else {
 		while ( my $results = $sth->fetchrow_hashref ) {
@@ -178,8 +178,8 @@ sub trxelab {
         XShift, YShift, ZShift , X, Y, Z, HShift, HShiftDir, HShift_local,
         speed, speed_local, acceleration, acceleration_local, T_node, water_level, pressure, load_value, AlfaX, AlfaY, calcerr
         from ElabDataView
-        where UnitName = '$unit', ToolNameID = '$tool' and updated_at > '$matlab_timestamp'
-        order by ToolNameID DESC, EventDate, EventTime, convert(`NodeNum`, decimal) DESC
+        where UnitName = '$unit' and ToolNameID = '$tool' and updated_at > '$matlab_timestamp'
+        order by ToolNameID DESC, EventDate, EventTime, convert(`NodeNum`, UNSIGNED INTEGER) DESC
     ) resulting_set
     into outfile '$fileelab'
     fields terminated by ',' optionally enclosed by '"' lines terminated by '\n'}
@@ -245,8 +245,10 @@ sub getNodesType {
 
 	$sth->execute();
 	print getTimeStamp("log"). " - pid $$ >> $unit - $tool: " . $sth->rows . " rows selected to get node type/Ain/Din/channels.\n";
-	if ( $sth->rows < 0 ) {
-		die getTimeStamp("log") . " - pid $$ >> No node channels selected.\n";
+	if ( $sth->rows eq 0 ) {
+		print getTimeStamp("log"). " - pid $$ >> Node/Channels/Ain/Din not defined.\n";
+		print getTimeStamp("log"). " - pid $$ >> Execution ended.\n";
+		exit;
 	}else {
 		my $row = 0;
 		while ( my $results = $sth->fetchrow_hashref ) {
@@ -272,7 +274,7 @@ sub getUdbPwd {
 	  or die getTimeStamp("log") . " - pid $$ >> $DBI::errstr";
 
 	$sth->execute();
-	if ( $sth->rows < 0 ) {
+	if ( $sth->rows eq 0 ) {
 		die getTimeStamp("log") . " - pid $$ >> No password selected.\n";
 	}else {
 		my $results = $sth->fetchrow_hashref;
@@ -301,7 +303,7 @@ sub getMatlabCmd {
 	) or die getTimeStamp("log") . " - pid $$ >> $DBI::errstr";
 
 	$sth->execute();
-	if ( $sth->rows < 0 ) {
+	if ( $sth->rows eq 0 ) {
 		die getTimeStamp("log"). " - pid $$ >> No tool's matlab function selected.\n";
 	}else {
 		while ( my $results = $sth->fetchrow_hashref ) {
@@ -470,12 +472,6 @@ while ( my $line = <FILE> ) {
 				my ( $Vbat, $Tmod, $Ain1, $Ain2, $Din1, $Din2 ) =
 				  split( /;/, $NodeData );
 
-				if ( scalar @din ) {
-					print getTimeStamp("log"). " - pid $$ >> Ain/Din not defined.\n";
-					print getTimeStamp("log"). " - pid $$ >> Execution ended.\n";
-					exit;
-				}
-
 				my $idx = 0;
 				$CSVData[$idx++] = $Vbat . ";" . $Tmod;