diff --git a/web/pgadmin/tools/sqleditor/__init__.py b/web/pgadmin/tools/sqleditor/__init__.py
index c72505a4..ead100e7 100644
--- a/web/pgadmin/tools/sqleditor/__init__.py
+++ b/web/pgadmin/tools/sqleditor/__init__.py
@@ -1476,14 +1476,19 @@ def query_tool_status(trans_id):
 
     if conn and trans_obj and session_obj:
         status = conn.transaction_status()
-        return make_json_response(
-            data={
-                'status': status,
-                'message': gettext(
-                    CONNECTION_STATUS_MESSAGE_MAPPING.get(status)
-                )
-            }
-        )
+        if status is not None:
+            return make_json_response(
+                data={
+                    'status': status,
+                    'message': gettext(
+                        CONNECTION_STATUS_MESSAGE_MAPPING.get(status)
+                    )
+                }
+            )
+        else:
+            return internal_server_error(
+                errormsg=gettext("Transaction status check failed.")
+            )
     else:
         return internal_server_error(
             errormsg=gettext("Transaction status check failed.")
diff --git a/web/pgadmin/utils/driver/psycopg2/connection.py b/web/pgadmin/utils/driver/psycopg2/connection.py
index 315631c0..ac85f9dc 100644
--- a/web/pgadmin/utils/driver/psycopg2/connection.py
+++ b/web/pgadmin/utils/driver/psycopg2/connection.py
@@ -50,6 +50,12 @@ else:
 _ = gettext
 
 
+# Replace default ascii encoder with unicode-escape
+# which translates characters to unicode format.
+# Escape special characters to ASCII based on unicode
+encodings['SQL_ASCII'] = 'unicode-escape'
+encodings['SQLASCII'] = 'unicode-escape'
+
 # Register global type caster which will be applicable to all connections.
 register_global_typecasters()
 
diff --git a/web/pgadmin/utils/driver/psycopg2/typecast.py b/web/pgadmin/utils/driver/psycopg2/typecast.py
index f1366049..ccebb2f9 100644
--- a/web/pgadmin/utils/driver/psycopg2/typecast.py
+++ b/web/pgadmin/utils/driver/psycopg2/typecast.py
@@ -164,7 +164,7 @@ def register_global_typecasters():
 
 
 def register_string_typecasters(connection):
-    if connection.encoding != 'UTF8':
+    if connection.encoding not in ('UTF8', 'SQLASCII', 'SQL_ASCII'):
         # In python3 when database encoding is other than utf-8 and client
         # encoding is set to UNICODE then we need to map data from database
         # encoding to utf-8.