diff --git a/python/plugins/db_manager/db_plugins/oracle/QtSqlDB.py b/python/plugins/db_manager/db_plugins/oracle/QtSqlDB.py
index 867cef28855..d3130333dfb 100644
--- a/python/plugins/db_manager/db_plugins/oracle/QtSqlDB.py
+++ b/python/plugins/db_manager/db_plugins/oracle/QtSqlDB.py
@@ -144,7 +144,7 @@ class QtSqlDBCursor(object):
         return self.qry.seek(row)
 
     def fetchone(self):
-        if not next(self.qry):
+        if not self.qry.next():
             return None
 
         row = []
diff --git a/python/plugins/db_manager/db_plugins/oracle/connector.py b/python/plugins/db_manager/db_plugins/oracle/connector.py
index a76de5adac5..fffe8ba68fd 100644
--- a/python/plugins/db_manager/db_plugins/oracle/connector.py
+++ b/python/plugins/db_manager/db_plugins/oracle/connector.py
@@ -541,11 +541,11 @@ class OracleDBConnector(DBConnector):
                     buf = list(item)
                     geomtype = geomtypes[j]
                     srid = srids[j]
-                    datatype = Qgis.featureType(Qgis.singleType(geomtype))
-                    geo = datatype[3:].upper().strip(u"25D")
+                    datatype = QgsWkbTypes.displayString(QgsWkbTypes.flatType(QgsWkbTypes.singleType(geomtype)))
+                    geo = datatype.upper()
                     buf.append(geo)
                     buf.append(geomtype)
-                    buf.append(Qgis.wkbDimensions(geomtype))  # Dimensions
+                    buf.append(QgsWkbTypes.coordDimensions(geomtype))  # Dimensions
                     buf.append(srid)
                     buf.append(None)  # To respect ORTableVector row
                     buf.append(None)  # To respect ORTableVector row
@@ -636,11 +636,11 @@ class OracleDBConnector(DBConnector):
             for j in range(len(geomtypes)):
                 buf = list(item)
                 geomtype = geomtypes[j]
-                datatype = Qgis.featureType(Qgis.singleType(geomtype))
-                geo = datatype[3:].upper().strip(u"25D")
+                datatype = QgsWkbTypes.displayString(QgsWkbTypes.flatType(QgsWkbTypes.singleType(geomtype)))
+                geo = datatype.upper()
                 buf.append(geo)  # Geometry type as String
                 buf.append(geomtype)  # Qgis.WkbType
-                buf.append(Qgis.wkbDimensions(geomtype))  # Dimensions
+                buf.append(QgsWkbTypes.coordDimensions(geomtype))  # Dimensions
                 buf.append(detectedSrid)  # srid
                 if not self.onlyExistingTypes:
                     geomMultiTypes.append(0)
diff --git a/python/plugins/db_manager/db_plugins/oracle/info_model.py b/python/plugins/db_manager/db_plugins/oracle/info_model.py
index aa5854dee08..8668436c7cd 100644
--- a/python/plugins/db_manager/db_plugins/oracle/info_model.py
+++ b/python/plugins/db_manager/db_plugins/oracle/info_model.py
@@ -24,7 +24,7 @@ The content of this file is based on
 """
 
 from qgis.PyQt.QtWidgets import QApplication
-from qgis.core import Qgis
+from qgis.core import QgsWkbTypes
 
 from ..info_model import TableInfo, VectorTableInfo, DatabaseInfo
 from ..html_elems import HtmlContent, HtmlSection, HtmlParagraph, \
@@ -576,7 +576,7 @@ class ORVectorTableInfo(ORTableInfo, VectorTableInfo):
              self.table.geomType),
             (QApplication.translate("DBManagerPlugin",
                                     "Qgis Geometry type:"),
-             Qgis.featureType(self.table.wkbType))
+             QgsWkbTypes.displayString(self.table.wkbType))
         ]
 
         # only if we have info from geometry_columns