diff --git a/python/plugins/db_manager/db_plugins/connector.py b/python/plugins/db_manager/db_plugins/connector.py
index 71bb8fda86c..8efb4a23629 100644
--- a/python/plugins/db_manager/db_plugins/connector.py
+++ b/python/plugins/db_manager/db_plugins/connector.py
@@ -25,7 +25,7 @@ from PyQt4.QtGui import *
 
 from qgis.core import QgsDataSourceURI
 
-from .plugin import DbError, ConnectionError
+from .plugin import BaseError, DbError, ConnectionError
 
 class DBConnector:
 	def __init__(self, uri):
@@ -75,10 +75,10 @@ class DBConnector:
 		try:
 			cursor.execute(unicode(sql))
 
-		except self.connection_error_types(), e:
+		except self.connection_error_types() as e:
 			raise ConnectionError(e)
 
-		except self.execution_error_types(), e:
+		except self.execution_error_types() as e:
 			# do the rollback to avoid a "current transaction aborted, commands ignored" errors
 			self._rollback()
 			raise DbError(e, sql)
diff --git a/python/plugins/db_manager/db_plugins/postgis/connector.py b/python/plugins/db_manager/db_plugins/postgis/connector.py
index 8752b9890fb..e92500e4771 100644
--- a/python/plugins/db_manager/db_plugins/postgis/connector.py
+++ b/python/plugins/db_manager/db_plugins/postgis/connector.py
@@ -866,7 +866,7 @@ class PostGisDBConnector(DBConnector):
 
 
 	def execution_error_types(self):
-		return psycopg2.Error, psycopg2.ProgrammingError
+		return psycopg2.Error, psycopg2.ProgrammingError, psycopg2.Warning
 
 	def connection_error_types(self):
 		return psycopg2.InterfaceError, psycopg2.OperationalError
diff --git a/python/plugins/db_manager/db_plugins/spatialite/connector.py b/python/plugins/db_manager/db_plugins/spatialite/connector.py
index 02c90431347..1bb4e9f863b 100644
--- a/python/plugins/db_manager/db_plugins/spatialite/connector.py
+++ b/python/plugins/db_manager/db_plugins/spatialite/connector.py
@@ -554,7 +554,7 @@ class SpatiaLiteDBConnector(DBConnector):
 
 
 	def execution_error_types(self):
-		return sqlite.Error, sqlite.ProgrammingError
+		return sqlite.Error, sqlite.ProgrammingError, sqlite.Warning
 
 	def connection_error_types(self):
 		return sqlite.InterfaceError, sqlite.OperationalError
diff --git a/python/plugins/db_manager/dlg_sql_window.py b/python/plugins/db_manager/dlg_sql_window.py
index 53f9a604235..640ec7f9c87 100644
--- a/python/plugins/db_manager/dlg_sql_window.py
+++ b/python/plugins/db_manager/dlg_sql_window.py
@@ -196,7 +196,7 @@ class DlgSqlWindow(QDialog, Ui_Dialog):
 			c = connector._execute(None, sql)
 			cols = connector._get_cursor_columns(c)
 
-		except (BaseError, Warning) as e:
+		except BaseError as e:
 			QApplication.restoreOverrideCursor()
 			DlgDbError.showError(e, self)
 			return