How to write an Advanced Query which gets the same results as the simple query option
Hiking & ActivitiesHow do you use the result of one query to another query? Use the results of a query as a field in another query. You can use a subquery as a field alias. Use a subquery as a field alias when you want to use the subquery results as a field in your main query.
How to convert shp to PostGIS dump?
Hiking & ActivitiesHow do I import a shapefile into PostGIS? This process involves the following 5 steps: Step 1: create the database. Step 2: create the user and grant privileges. Step 3: upload the shapefile in QGIS. Step 4: upload the shapefile from QGIS to PostGIS. Step 5: (Optional) Access your new table. How do I
Vector grid in QGIS3 – Can I change the order of row number?
Hiking & ActivitiesHow do I create a vector grid in Qgis? To create the grid, go to Vector -> Research Tools -> Create Grid. Select Rectangle as the grid type and define the horizontal and vertical spacing size. I set them to 2 by 2 km squares. In the Grid extent section select Calculate from layer ->
Qgis Semi automatic classification pluggin how to add text to rows in attribute table
Hiking & ActivitiesHow do you make an attribute table editable in QGIS? Right click the layer in the Layers Panel then click the Open Attribute Table menu option. Click the Toggle Editing Mode button. Click the New Field button. Input the field’s Name, Type, and Length, then click the OK button. How do I add a data
Clarification on Oracle sdo_gtype
Hiking & ActivitiesWhat is Oracle SDO? Introducing Service Data Objects. SDO is a Java-based data programming model and architecture for accessing and updating data. What is spatial data in Oracle? Oracle Spatial consists of a set of object data types, type methods, and operators, functions, and procedures that use these types. A geometry is stored as an
Manually set QGIS vertex coordinate in lat-long format
Hiking & ActivitiesHow do you convert XY coordinates to latitude and longitude in QGIS? Toggle editing (ctrl-E) and open the calculator (ctrl-I). Select “create a new field”, call it “Longitude”, and make the expression $x. Do the same for a second new attribute called “Latitude” and make the expression $y. You should now have latitude and longitude