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With the following query, it is possible to assign the data associated with each point to the line segment following it, when considering the line direction. …

Let's assume we have 10 features in "points" layer respectively, see image below. With the following query, it is possible to achieve the lines between all possible connection of points excluding the …

First of all, simply try the approach that was suggested by @Erik, deploy Excel with the combination of FIND(), LEFT()/RIGHT() and LENGTH(). Afterwards, import your CSV file into QGIS, check this art …

It is expected that you have already imported your CSV file into QGIS and possess a basic point vector layer, for more details check references. … Let's assume there is one point layer 'points' (3 features at the same location) with its corresponding attribute table, see image below. …

Let's assume there is one point layer "points" (3 features at the same location) with its corresponding attribute table, see image below. Step 1. In the Field Calculator create a new attribute, e.g. …

Let's assume we have two point layers "test" and "test2" with its corresponding attribute tables, see image below. … With the following query, it is possible to create point features at the intersections of the circles representing the distance from objects. -- distance from first object, e.g. 50m WITH Buffer1 AS ( SELECT …

Syntax make_circle(center,radius[,segment=36]…) [ ] marks optional components Arguments center center point of the circle radius radius of the circle segment optional argument for polygon segmentation. …

Possible by means of the "Rectangles, Ovals, Diamonds" geoalgorithm from the QGIS's Toolbox, using 'Ovals', either fixed or variable. Note: That both 'Width' and 'Height' parameters have to be equal. …

As was mentioned by @Erik in his comment, it is efficient to use the regexp_match() function. Use the following expression: CASE WHEN regexp_match("NAME", 'W') THEN 'square' WHEN regexp_matc …

Try also the "DBSCAN clustering" geoalgorithm. It contains a setting called 'Maximum distance between clustered points' and will provide in the end the "CLUSTER_SIZE" attribute.

References: Finding point closest to point on near feature? PostGIS nearest points with ST_Distance, kNN …

Let's assume there is a point layer called "points". With the following query, it is possible to achieve the result where each point will be shifted on a certain delta generated randomly. … Note: That this solution is working only for 1:1 relation between a point feature and a polygon feature within which the point lays. …

With the following query, it is possible to create a point at the end of each line. … SELECT st_endpoint(geometry), * FROM "polylines" The output point layer (yellow) with its attribute table will look like Mind the difference between ST_StartPoint() and ST_EndPoint(). …

Try to tackle you task in a bit different way. This question was already explained here Postgis – Opposite of ST_Within. Let's assume there are two layers "schools" (orange) and "libraries" (purple), …

.* FROM "polygons" AS p JOIN "points" AS poi ON st_intersects(p.geometry, poi.geometry) So, in the result you will see polygons as many times as the intersection between point and polygon exists. …