How to connect to PostgreSQL database using pgAdmin 4?

 How to connect to PostgreSQL database using pgAdmin 4? In order to set up a connection to the PostgreSQL database, run pgAdmin 4, for example, from the Start menu. As a result, pgAdmin 4 will start. Then click the menu "Object->Create->Server" or right-click on the item "Servers" and select "Create->Server". The server connection settings window will open. On the General tab, we invent and enter the name of our server in the Name field. On the Connection tab, enter the server IP address, username, password, and if you want, you can check the “Save password?” to save the password and not to enter it every time you connect. If the standard port (5432) of the PostgreSQL server has been changed, then you also need to change it here. Press the "Save" button. Note! The PostgreSQL server must be installed, configured and running. We considered an example of installing and configuring PostgreSQL DBMS on Linux Debian in the material “Installing ...

Demarker indicator

 Demarker indicator

DeMarker is an author's indicator named after its creator, well-known trader and technical analysis guru Thomas DeMark. This oscillator evaluates the position of current prices in relation to the previous period, helps to determine the state of the market and find places for a possible reversal of the current trend. The indicator is calculated in a separate window under the price chart.


DeMarker is a normalized oscillator: its values ​​range from 0% to 100%, which are indicated in the indicator window as 0 and 1. Unlike other oscillators, DeMarker pays more attention not to closing prices, but to intermediate extremes (highs and lows). The indicator calculation algorithm compares the current highs and lows on the price chart with the extreme values ​​of the previous period.