diff --git a/services/DatabaseService.php b/services/DatabaseService.php
index be5486b6..c394a4af 100644
--- a/services/DatabaseService.php
+++ b/services/DatabaseService.php
@@ -29,9 +29,18 @@ class DatabaseService
 	{
 		$pdo = $this->GetDbConnectionRaw();
 
+		if (GROCY_MODE === 'dev')
+		{
+			$logFilePath = GROCY_DATAPATH . '/sql.log';
+			if (file_exists($logFilePath))
+			{
+				file_put_contents($logFilePath, $sql . PHP_EOL, FILE_APPEND);
+			}
+		}
+
 		if ($pdo->exec($sql) === false)
 		{
-			throw new Exception($pdo->errorInfo());
+			throw new \Exception($pdo->errorInfo());
 		}
 
 		return true;
@@ -49,6 +58,17 @@ class DatabaseService
 			self::$DbConnection = new Database($this->GetDbConnectionRaw());
 		}
 
+		if (GROCY_MODE === 'dev')
+		{
+			$logFilePath = GROCY_DATAPATH . '/sql.log';
+			if (file_exists($logFilePath))
+			{
+				self::$DbConnection->setQueryCallback(function ($query, $params) use ($logFilePath) {
+					file_put_contents($logFilePath, $query . ' #### ' . implode(';', $params) . PHP_EOL, FILE_APPEND);
+				});
+			}
+		}
+
 		return self::$DbConnection;
 	}
 
diff --git a/services/PrintService.php b/services/PrintService.php
index e53dec70..6b47ac9d 100644
--- a/services/PrintService.php
+++ b/services/PrintService.php
@@ -3,7 +3,6 @@
 namespace Grocy\Services;
 
 use DateTime;
-use Exception;
 use Mike42\Escpos\PrintConnectors\NetworkPrintConnector;
 use Mike42\Escpos\PrintConnectors\FilePrintConnector;
 use Mike42\Escpos\Printer;
@@ -15,7 +14,7 @@ class PrintService extends BaseService
 		$printer = self::getPrinterHandle();
 		if ($printer === false)
 		{
-			throw new Exception('Unable to connect to printer');
+			throw new \Exception('Unable to connect to printer');
 		}
 
 		if ($printHeader)
diff --git a/services/StockService.php b/services/StockService.php
index 16cb468c..3b38fc72 100644
--- a/services/StockService.php
+++ b/services/StockService.php
@@ -509,7 +509,7 @@ class StockService extends BaseService
 		}
 		else
 		{
-			throw new Exception("Transaction type $transactionType is not valid (StockService.ConsumeProduct)");
+			throw new \Exception("Transaction type $transactionType is not valid (StockService.ConsumeProduct)");
 		}
 	}