Guidelines

How do I add PostGIS layers to my QGIS database? Open QGIS and click on the “Add PostGIS Layers” button. Under “Connections” at the top,…

Why do algorithms run in a separate thread in QGIS? By default, Processing runs algorithms in a separate thread in order to keep QGIS responsive…

Which is the text annotation tool in QGIS? The Text Annotation tool in the attribute toolbar provides the possibility to place formatted text in a…

Can you GROUP BY primary key in SQL? Essentially this means grouping by the primary key of a table results in no change in rows…

Is field also called column? The word ‘field’ is normally used interchangeably with ‘column’. Columns (really column names) being referred to as field names (common…

Is StarUML free to use? No. StarUML V1 was an open source project under GPL License. However, current StarUML (after V2) is not open source…

How do you know which way to rotate? From MathWarehouse web site: “To rotate an object you need a center of rotation and how much…

How do I Unmerge two WhatsApp accounts? Go to the phone’s Settings. Select Apps (some times hidden under “Advanced Settings”). Select Whatsapp. Select Clear Data.…

Can you use two mics at the same time? Now, you can record with both of your USB mics at the same time. The slight…

How do I mount a drive in command prompt? First, open Command Prompt as Administrator. To mount a drive, type mountvol [DriveLetter] [VolumeName] . Make…