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 ...

MACD indicator (Moving Average Convergence/Divergence)




 The MACD indicator is one of the most popular oscillators, developed by renowned trader and analyst Gerald Appel. "Moving Average Convergence/Divergence (MACD)" translates as "convergence and divergence of moving averages". As the name implies, MACD uses a combination of several movings with different parameters.


The indicator is calculated in a separate window on the terminal screen and consists of two lines, one of which is represented as a bar chart. The trading signal is the intersection of these two lines, as well as divergence (divergence) - the discrepancy between the extreme values ​​of the indicator (highs and lows) with the price chart. Divergence can predict an incipient correction or even a trend reversal.

How to use the MACD indicator: settings, trading, divergence