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 ...

Why do you need Android programs on a computer?


To work with Android applications directly in the operating system of the Windows family, the user will have to install a special emulator environment on the computer. There are quite a few such programs on the web. The principle of operation is the same: after installation on a PC, they programmatically create a comfortable space for Android applications, inside which programs familiar to smartphones are launched. Therefore, the question is only about which emulator to choose from the set.








 Why do you need Android programs on a computer?





There is only one answer: ease of use. The smartphone is equipped with a small screen compared to a PC. The second reason is that the power of a modern computer exceeds that of a mobile device. Yes, there are smartphones with productive hardware, but not everyone can afford them. But no matter what processor and video chip the phone developers equip, playing even on a seven-inch smartphone screen is still not as comfortable as on a 24-inch monitor. In addition, the operating time of the phone is severely limited by the capacity of its own battery, and the computer is powered by the network. Another reason is that the active cooling of the PC during use does not allow it to overheat, and the smartphone can turn into coal while playing the same PUBG. In addition, in terms of the convenience of controlling game characters, can the phone keyboard be compared with the mouse and keyboard of the “big brother”?

Consider several emulators of android applications for Windows.