Create additional ‘fields’ in GDB domain system table (GDB_items)?
Hiking & ActivitiesWhat is a GDB table? The internal structure of the geodatabase is represented as a series of simple tables called the geodatabase system tables (the tables prefixed with GDB_), which track the contents of each geodatabase. They essentially describe the geodatabase schema that specifies all dataset definitions, rules, and relationships. Which geodatabase repository table stores
Exporting layer to PostgreSQL / Inserts per Transaction
Hiking & ActivitiesHow many inserts per second can Postgres handle? If you’re simply filtering the data and data fits in memory, Postgres is capable of parsing roughly 5-10 million rows per second (assuming some reasonable row size of say 100 bytes). If you’re aggregating then you’re at about 1-2 million rows per second. How to store large
Advantages either way between GML and Shapefiles?
Hiking & ActivitiesWhat are the main advantages of using shapefiles? A primary advantage of shapefiles is that this simple file structure draws faster than a coverage does. This may be why the shapefile data structure was developed for ArcView GIS, a software program that was originally designed for data viewing rather than analysis. What is the difference
Trouble with Hot Spot Analysis (Getis-Ord Gi*) tool in ArcGIS
Hiking & ActivitiesHow to do hotspot analysis in ArcGIS? From the Toolbox navigate to Spatial Statistics Tools > Mapping Clusters and open the Optimized Hotspot Analysis tool. This tool allows for quick hotspot analysis using minimal input parameters and sets/calculates default parameters for those you have no control over. What is Getis Ord Gi * statistic? The
Storing shapefile in PostgreSQL database as a table using PHP?
Hiking & ActivitiesCan we store file in PostgreSQL database? BLOB is a Binary large object (BLOB) is a data type that can store any binary data. To Store Blob data in a Postgres database Table, we will use psycopg2. The table for storing BLOB data in PostgreSQL is called a Large Object table and the data type
Select features from attribute table and then create a new field with the selected attribute data
Hiking & ActivitiesHow do I add a new field to an attribute table? i. In ArcMap, right-click the shapefile layer in the table of contents and click Open Attribute Table. ii. Click the Options button and click Add Field. How do I create a new field in an attribute table in Arcgis? No other users or applications