diff --git a/Install_PostgreSQL_14_and_PostGIS_3.md b/Install_PostgreSQL_14_and_PostGIS_3.md
index d847c2d..dfcba5d 100644
--- a/Install_PostgreSQL_14_and_PostGIS_3.md
+++ b/Install_PostgreSQL_14_and_PostGIS_3.md
@@ -12,4 +12,72 @@ sudo apt install postgresql-14-postgis-3 postgresql-14-postgis-3-scripts
 ```
 
 # Step 2: Create Database
+While in terminal, log in to the psql console as postgres user:
 
+`sudo su -l postgres`
+
+### Create users 'gn_admin' and 'gn_app' with passwords:
+
+Create a admin user called gn_admin with new password:\
+`postgres=# create user gn_admin with encrypted password 'xxx';`
+> CREATE ROLE
+
+Create an app user called gn_app with new password:\
+`postgres=# create user gn_app with encrypted password 'xxx';`
+> CREATE ROLE
+
+### Create db 'gn_db' and schema 'gba':
+create a database called tethys via psql:\
+`postgres=# create database gn_db;`
+> CREATE DATABASE
+
+
+user postgres ist default owner of db gn_db
+
+exit psql:\
+`\q`
+
+and re-login into gn_db:\
+`postgres@geomon:~$psql -d gn_db -U postgres -p 5432`
+
+create a schema 'gba' for all gn_db tabels with full authorization for the user 'gn_admin':\
+`gn_db=# CREATE SCHEMA IF NOT EXISTS gba AUTHORIZATION gn_admin;`
+> CREATE SCHEMA
+
+### Change user privileges:
+-> grant select, insert, update and delete privileges for the user 'gn_app':\
+`gn_db=# grant usage on schema gba to gn_app;`
+> GRANT
+
+`gn_db=# grant select, insert, update, delete on all tables in schema gba to gn_app;`
+> GRANT
+
+**Default "select, insert, update, delete privileges" on tables to sos_app**\
+`gn_db=# alter default privileges for role gn_admin in schema gba grant select, insert, update, delete on tables to gn_app;`
+> ALTER DEFAULT PRIVILEGES
+
+**Default usage privileges on sequences to sos_app**\
+grant usage on all sequences in schema gba to sos_app:\
+`gn_db=# alter default privileges for role gn_admin in schema gba grant usage on sequences to gn_app;`
+> ALTER DEFAULT PRIVILEGES
+
+**Default execute privileges on function to sos_app**\
+grant execute on all functions in schema gba to sos_app:\
+`alter default privileges for role gn_admin in schema gba grant execute on functions to gn_app;`
+> ALTER DEFAULT PRIVILEGES
+
+### Create extensions:
+`gn_db=# CREATE EXTENSION postgis;`
+> CREATE EXTENSION
+
+`gn_db=# CREATE EXTENSION adminpack;`
+> CREATE EXTENSION
+
+`gn_db=# CREATE EXTENSION pgcrypto;`
+> CREATE EXTENSION
+
+gn_db=# SELECT postgis_full_version();
+
+
+exit to administrator user:\
+`\q`
\ No newline at end of file