diff --git a/db/sql/scripts/bus_stop.sql b/db/sql/scripts/bus_stop.sql
index d30707a..1dbc9d6 100644
--- a/db/sql/scripts/bus_stop.sql
+++ b/db/sql/scripts/bus_stop.sql
@@ -102,4 +102,4 @@ SELECT foo.id,
 		WHERE (lk.name = ANY (ARRAY['Braunschweig','Salzgitter','Wolfsburg','Gifhorn','Landkreis Goslar','Landkreis Helmstedt','Landkreis Peine','Landkreis Wolfenbüttel'])) AND foo.name IS NOT NULL AND foo.kategorie <> 999
 		ORDER BY lk.name, gem.name, foo.kategorie, foo.name;
 
-CREATE TABLE :schema.tbl_bus_stop AS SELECT * FROM :schema.vw_bus_stop;
+CREATE TABLE IF NOT EXISTS :schema.tbl_bus_stop AS SELECT * FROM :schema.vw_bus_stop;
diff --git a/db/sql/scripts/poi.sql b/db/sql/scripts/poi.sql
index 10e5887..7dc3c46 100644
--- a/db/sql/scripts/poi.sql
+++ b/db/sql/scripts/poi.sql
@@ -5,7 +5,7 @@ SET search_path to :schema, public;
 DROP TABLE IF EXISTS :schema.tbl_poi;
 DROP VIEW IF EXISTS :schema.vw_poi;
 
-CREATE OR REPLACE VIEW :schema.vw_poi AS 
+CREATE OR REPLACE VIEW IF NOT EXISTS :schema.vw_poi AS 
 
 SELECT foo.id, foo.osm_id,  foo.name, foo.kategorie, lk.name as landkreis, 
 		 CASE WHEN gem.name IS NULL THEN lk.name ELSE gem.name END as gemeinde, 
@@ -271,4 +271,4 @@ LEFT JOIN vw_municipalities gem ON st_contains(gem.way, st_transform(st_geomfrom
 WHERE (lk.name = ANY (ARRAY['Braunschweig','Salzgitter','Wolfsburg','Gifhorn','Landkreis Goslar','Landkreis Helmstedt','Landkreis Peine','Landkreis Wolfenbüttel'])) AND foo.name IS NOT NULL AND foo.kategorie <> 999
 ORDER BY lk.name, gem.name, foo.kategorie, foo.name;
 
-CREATE TABLE :schema.tbl_poi AS SELECT * FROM :schema.vw_poi;
+CREATE TABLE IF NOT EXISTS :schema.tbl_poi AS SELECT * FROM :schema.vw_poi;
diff --git a/db/sql/scripts/railway.sql b/db/sql/scripts/railway.sql
index e3fe7e1..3744bb3 100644
--- a/db/sql/scripts/railway.sql
+++ b/db/sql/scripts/railway.sql
@@ -5,7 +5,7 @@ SET search_path to :schema, public;
 DROP TABLE IF EXISTS :schema.tbl_railway;
 DROP VIEW IF EXISTS :schema.vw_railway;
 
-CREATE OR REPLACE VIEW :schema.vw_railway AS 
+CREATE OR REPLACE VIEW IF NOT EXISTS :schema.vw_railway AS 
 SELECT foo.id,
        foo.osm_id,
        foo.railway,
@@ -88,4 +88,4 @@ SELECT foo.id,
 		WHERE (lk.name = ANY (ARRAY['Braunschweig','Salzgitter','Wolfsburg','Gifhorn','Landkreis Goslar','Landkreis Helmstedt','Landkreis Peine','Landkreis Wolfenbüttel'])) AND foo.name IS NOT NULL
 		ORDER BY lk.name, gem.name, foo.name;
 
-CREATE TABLE :schema.tbl_railway AS SELECT * FROM :schema.vw_railway;
+CREATE TABLE IF NOT EXISTS :schema.tbl_railway AS SELECT * FROM :schema.vw_railway;
diff --git a/db/sql/scripts/vw_counties.sql b/db/sql/scripts/vw_counties.sql
index 6789268..6c24674 100644
--- a/db/sql/scripts/vw_counties.sql
+++ b/db/sql/scripts/vw_counties.sql
@@ -2,9 +2,9 @@
 CREATE SCHEMA IF NOT EXISTS :schema;
 SET search_path to :schema, public;
 
-DROP VIEW :schema.vw_counties CASCADE;
+DROP VIEW IF EXISTS :schema.vw_counties CASCADE;
 
-CREATE OR REPLACE VIEW :schema.vw_counties AS
+CREATE OR REPLACE VIEW IF NOT EXISTS :schema.vw_counties AS
  SELECT planet_osm_polygon.osm_id,
     planet_osm_polygon.name,
     planet_osm_polygon.boundary,
diff --git a/db/sql/scripts/vw_export_poi.sql b/db/sql/scripts/vw_export_poi.sql
index 8bea984..149b4e3 100644
--- a/db/sql/scripts/vw_export_poi.sql
+++ b/db/sql/scripts/vw_export_poi.sql
@@ -2,7 +2,7 @@
 CREATE SCHEMA IF NOT EXISTS :schema;
 SET search_path to :schema, public;
 
-CREATE OR REPLACE VIEW :schema.vw_export_poi AS
+CREATE OR REPLACE VIEW IF NOT EXISTS :schema.vw_export_poi AS
 
 	SELECT foo.id, foo.kat, tl.deutsch as kat_de, tl.english as kat_en, foo.kat_sub as kat_sub_de, foo.kat_sub as kat_sub_en, foo.name, 
 	foo.adr_street AS strasse, foo.plz, foo.gemeinde, foo.landkreis,
diff --git a/db/sql/scripts/vw_municipalities.sql b/db/sql/scripts/vw_municipalities.sql
index 964eacd..1afd13d 100644
--- a/db/sql/scripts/vw_municipalities.sql
+++ b/db/sql/scripts/vw_municipalities.sql
@@ -2,7 +2,7 @@
 CREATE SCHEMA IF NOT EXISTS :schema;
 SET search_path to :schema, public;
 
-DROP VIEW :schema.vw_municipalities CASCADE;
+DROP VIEW IF EXISTS :schema.vw_municipalities CASCADE;
 
 CREATE OR REPLACE VIEW :schema.vw_municipalities AS
  SELECT planet_osm_polygon.osm_id,