Databases and spatial databases

1. If there is a major difference between the GIS industry and it, the essential difference lies in the application of databases. Databases can be said to be the pillar of the entire IT industry. Their advantages include data sharing, reducing redundancy, avoiding inconsistencies, transaction support, integrity, and independence. They also offer a good advantage, industrial standard SQL.
2. Historically, there have been many technical problems in storing spatial data into databases, which has created a gap between them.
3. There is another difference between spatial data and structured data, that is, the technical content of display, update, and editing requirements is much higher than that of general structured data. The focus of traditional GIS is also on this.
4. if you focus on spatial databases, we can see that most databases currently start or support spatial data, including commercial and open-source databases, such as postgis and MySQL.
5. OGC specifications are sufficient for most applications.
6. there may be a trend in the next 10 years, that is, the application of Spatial Data tends to be more and more built on the spatial support of General databases, avoiding the current commercial and open source GIS platforms, one result is that the current GIS platform is marginalized. CommunityAnd Related geotools applications.
7. An opportunity, that is, independent, compliant with the standard (OGC ?) Spatial Data Analysis (JTs, NT), display (similar to sharpmap) components should be the most promising direction in the field of spatial data.