Miami-Dade Public Library System (2021). Miami-Dade County Libraries [gis dataset]. Miami-Dade County. last updated: 2026-09-29 (update frequency: 1 year). A point feature class of libraries operated/managed by the Miami-Dade County Public Library System. Key words: Florida, Miami-Dade County, MDC, Education, Library, County Library, Population, Infrastructure Open Geospatial Consortium Standards:

dynamic vector tiles

ESRI Standards:

ArcGIS MapServer

ArcGIS FeatureServer

Open in ArcGIS Portal for GDSC

Analytical Functions:

gdsc_nearest_neighbor( table, lat, lng, id )

ETL documentation

ETL for mdc_county_library

######### # GDSC ETL is performed in two steps: shell script to ETL data into postgres # and then additional transformations with SQL in postGIS (if needed). #### ######### # Step 1 - bash script (pseudo code) #### # create directory structure and move into it mkdir -p /data/mdc_county_library/download -p /data/mdc_county_library/etl chmod -R 777 /data/mdc_county_library cd /data/mdc_county_library # set update flag based on last update and update frequency do_update=0 if date() < last_update + update_frequency else do_update = 1 # download if update flag is set: if do_update == 1 then wget --retry-connrefused --waitretry=1 --read-timeout=20 --timeout=15 -t 10 -O download/mdc_county_library.json 'https://services.arcgis.com/8Pc9XBTAsYuxx9Ny/arcgis/rest/services/Library_gdb/FeatureServer/0/query?where=1%3D1&outFields=*&outSR=4326&f=json' 2>&1 # replace column names Shape__Length and Shape__Area to avoid conflict when # providing as service on ArcServer. sed -i 's/Shape__Length/shape_length/gI; s/Shape__Area/shape_area/gI' download/mdc_county_library.json 2>&1 # load into postGIS with: ogr2ogr -lco GEOMETRY_NAME=geom -f PostgreSQL PG:"" download/mdc_county_library.json -nlt point -nln mdc_county_library echo success: mdc_county_library.json loaded with ogr2ogr ######### # Step 2 - SQL script (pseudo code): #### # remove duplicate points and make geometries valid: UPDATE mdc_county_library SET geom=ST_MakeValid(ST_RemoveRepeatedPoints(geom)); # add local geometry column and reproject existing geometries into local EPSG: ALTER TABLE mdc_county_library DROP COLUMN IF EXISTS geom_local CASCADE; SELECT AddGeometryColumn ( 'mdc_county_library', 'geom_local', 2236, 'point', 2 ); UPDATE mdc_county_library SET geom_local=ST_MakeValid(ST_RemoveRepeatedPoints(ST_Transform(geom,2236))); CREATE INDEX mdc_county_library_geom_local_idx ON mdc_county_library USING GIST (geom_local); NOTIFY pgrst, 'reload schema'; # Move into corrrect directory and create derivative directory in data package on osgeo cd /data/mdc_county_library/ mkdir -p derived # Move into correct directory cd /data/mdc_county_library/ # Create pg_dump of table SQL in derivate directory on postgis. pg_dump -h gdsc-postgis-node-xqqp2q1gxmg8iee0 -t mdc_county_library > derived/mdc_county_library.sql # Create downloadable tarfile of SQL in derivative directory on postgis rm -f derived/mdc_county_library.sql.tar.gz tar -czf derived/mdc_county_library.sql.tar.gz meta_dcat_mdc_county_library.json -C derived mdc_county_library.sql