Using LIKE with a Real field
Hiking & ActivitiesCan we use like in WHERE clause? The LIKE operator is used in a WHERE clause to search for a specified pattern in a column. There are two wildcards often used in conjunction with the LIKE operator: The percent sign (%) represents zero, one, or multiple characters. What is like %A in SQL? The %
Enabling (python) plugins on QGIS3 (Linux)?
Hiking & ActivitiesHow to install Python plugin in QGIS? To install or activate a plugin, go to Plugins ‣ Manage and install plugins…. Installed external python plugins are placed under ~/. qgis2/python/plugins folder. Home directory (denoted by above ~ ) on Windows is usually something like C:\Documents and Settings\(user) (on Windows XP or earlier) or C:\Users\(user) .
How do I build a custom form for entering attributes in QGIS
Hiking & ActivitiesHow do I create a form in Qgis? 6.3.1. Follow Along: Using QGIS’ Form Design Functionality Select the roads layer in the Layers list. Enter Edit Mode as before. Open its Attribute Table. Right-click on any cell in the table. A short menu will appear, with the only entry being Open form. Click on it
Clip or extract a raster by row/column number in QGIS or ArcMap?
Hiking & ActivitiesHow do I clip raster by raster in Qgis? Click on the Raster menu, mouse-over Extraction, and click on Clipper… Click “Select…” next to the Output file, find your working folder, and name the output raster. Click the radio button next to Mask layer and use the drop-down arrow to select the layer you are
Getting contradicting errors in script made to edit feature class using ArcGIS Pro
Hiking & ActivitiesWhy can’t I edit in ArcGIS Pro? The following are known causes for this issue: The editing capabilities of the layer is not enabled in ArcGIS Pro. The layer is corrupted or broken. The user is not logged in to an ArcGIS Online organizational account in ArcGIS Pro. How do I edit a feature class
Does switching satellites by GPS receiver cause errors?
Hiking & ActivitiesWhat are two sources of error when using a GPS receiver? The major sources of GPS positional error are: Atmospheric Interference. Calculation and rounding errors. Ephemeris (orbital path) data errors. What are the causes of GPS measuring errors? Common causes include: Satellite signal blockage due to buildings, bridges, trees, etc.Far less common causes may include: