Skip to main content

SQL Workshop - Removing Duplicate Rows

Let’s say that we have a heap table without keys, solely used for dumping raw data into. That data at some point is filtered and cleaned up for further use. As time passes and data accumulates, duplicate rows creep in causing all sorts of issues. So, using SQL, how do we remove the duplicates but keep the one row necessary? Read it on i-programmer

Comments

Popular posts from this blog

Spatial Data Management For GIS and Data Scientists

  Videos of the lectures taught in Fall 2023 at the University of Tennessee are now available as a YouTube playlist. They provide a complete overview of the concepts of GeoSpatial science using Google Earth Engine, PostgresSQL GIS , DuckDB, Python and SQL. https://www.i-programmer.info/news/145-mapping-a-gis/16772-spatial-data-management-for-gis-and-data-scientists.html