Query the Data Delivery Network
Query the DDNThe easiest way to query any data on Splitgraph is via the "Data Delivery Network" (DDN). The DDN is a single endpoint that speaks the PostgreSQL wire protocol. Any Splitgraph user can connect to it at data.splitgraph.com:5432 and query any version of over 40,000 datasets that are hosted or proxied by Splitgraph.
For example, you can query the certified_vendors_office_of_supplier_diversity table in this repository, by referencing it like:
"delaware-gov/certified-vendors-office-of-supplier-diversity-s4ev-nzhm:latest"."certified_vendors_office_of_supplier_diversity"or in a full query, like:
SELECT
":id", -- Socrata column ID
"company_name", -- Company Name
"osdcertnum", -- Certification Number with OSD as prefix.
"contact_name", -- Primary Company Contact
"address_1", -- DBA name or Street or PO Box number
"address_2", -- Additional Street or PO Box number info
"city", -- City
"state", -- State
"zip_code", -- Zip Code
"tel", -- Primary contact telephone number.
"fax", -- Primary contact facsimile number.
"website", -- Company website address
"email", -- Primary contact email address
"building_trade", -- 1 of 8 industry labels in the OSD certification.
"consultant", -- 1 of 8 industry labels in the OSD certification.
"general_services", -- 1 of 8 industry labels in the OSD certification.
"license_professional", -- 1 of 8 industry labels in the OSD certification.
"manufacture", -- 1 of 8 industry labels in the OSD certification.
"supplier", -- 1 of 8 industry labels in the OSD certification.
"highway_construction", -- 1 of 8 industry labels in the OSD certification.
"other_services", -- 1 of 8 industry labels in the OSD certification.
"deldot", -- Identifies a business as certified DBE by Delaware DOT
"md_dot", -- Identifies a business as certified DBE by Maryland DOT
"nmsdc", -- Identifies a business as certified by the National Minority Supplier Development Council, a national corporate certification
"paucp", -- Identifies a business as certified DBE by Pennsylvania DOT
"wbenc", -- Identifies a business as certified by the Women Business Enterprise National Council, a national corporate certification
"pamwb", -- Identifies a business as certified by Pennsylvania as Woman or Minority Business Enterprise (this PA program is life-cycling out)
"wilmcity", -- Identifies a business as certified by the City of Wilmington Minority Business Office
"njmwb", -- Identifies a business as certified by New Jersey as Woman or Minority Business Enterprise
"sam", -- Identifies a business as listed with the Federal Government System of Awards Management
"mbe", -- A State of Delaware certification within OSD meaning: Minority Business Enterprise
"wbe", -- A State of Delaware certification within OSD meaning: Woman Business Enterprise
"_8_a", -- A federal government certification. More information can be found at: https://www.sba.gov/contracting/government-contracting-programs/8a-business-development-program
"foreign_state", -- Categorization included in the State of Delaware certification within OSD if a company is certified in their home state, where their corporate headquarters sit, but is not a geographically neighboring state to Delaware.
"vobe", -- A State of Delaware certification within OSD meaning: Veteran Owned Business Enterprise
"sdvobe", -- A State of Delaware certification within OSD meaning: Service Disabled Veteran Owned Business Enterprise
"iwdbe", -- A State of Delaware certification within OSD meaning: Individual with DisAbilities Business Enterprise
"african", -- 1 of 5 ethnicities included in the State of Delaware certification within OSD as a: Minority Business Enterprise, as African American.
"asian", -- 1 of 5 ethnicities included in the State of Delaware certification within OSD as a: Minority Business Enterprise, as Asian American.
"subasian", -- 1 of 5 ethnicities included in the State of Delaware certification within OSD as a: Minority Business Enterprise, as SubContinent Asian American.
"hispanic", -- 1 of 5 ethnicities included in the State of Delaware certification within OSD as a: Minority Business Enterprise, as Hispanic American.
"nativeamer", -- 1 of 5 ethnicities included in the State of Delaware certification within OSD as a: Minority Business Enterprise, as Native American.
"white", -- Categorization included in the State of Delaware certification within OSD as a: Woman Business Enterprise; Caucasian
"other", -- A historical categorization included in the State of Delaware certification within OSD. (this categorization is life-cycling out).
"woman", -- Categorization included in the State of Delaware certification within OSD as a: Woman Business Enterprise, and allows for data across the OSD certifications: Minority, Veteran, Service Disabled Veteran, and Individual with DisAbility.
"disabled", -- Categorization included in the State of Delaware certification within OSD as a Service Disabled Veteran and/or an Individual with DisAbility.
"veteran", -- Categorization included in the State of Delaware certification within OSD as a Veteran and a Service Disabled Veteran.
"job_description", -- The vendor’s detailed description of the product(s) and/or services the business provides. Including a list of KEYWORDS that a buyer would search to find the business’s goods or services.
"naicscode1", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode2", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode3", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode4", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode5", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode6", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode7", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode8", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode9", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode10", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode11", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode12", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode13", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode14", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode15", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode16", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode17", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode18", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode19", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode20", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode21", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode22", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode23", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode24", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode25", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode26", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode27", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode28", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode29", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode30", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"naicscode31", -- NAICS is an acronym of the North American Industry Classification System. These are industry codes of 6 digit numbers that group business functions across seven major industries nationally. A business is certified for as many NAICS codes as they are currently able to meet eligibility standards for. NAICS can be viewed at http://www.census.gov/eos/www/naics/
"geocoded_location", -- The geocoded location created from the vendor address to represent this data on a map.
"certified" -- Certified Vendor (Y or N)
FROM
"delaware-gov/certified-vendors-office-of-supplier-diversity-s4ev-nzhm:latest"."certified_vendors_office_of_supplier_diversity"
LIMIT 100;Connecting to the DDN is easy. All you need is an existing SQL client that can connect to Postgres. As long as you have a SQL client ready, you'll be able to query delaware-gov/certified-vendors-office-of-supplier-diversity-s4ev-nzhm with SQL in under 60 seconds.
This repository is an "external" repository. That means it's hosted elsewhere, in this case at data.delaware.gov. When you querydelaware-gov/certified-vendors-office-of-supplier-diversity-s4ev-nzhm:latest on the DDN, we "mount" the repository using the socrata mount handler. The mount handler proxies your SQL query to the upstream data source, translating it from SQL to the relevant language (in this case SoQL).
We also cache query responses on the DDN, but we run the DDN on multiple nodes so a CACHE_HIT is only guaranteed for subsequent queries that land on the same node.
Query Your Local Engine
Install Splitgraph Locally
bash -c "$(curl -sL https://github.com/splitgraph/splitgraph/releases/latest/download/install.sh)"Read the installation docs.
Splitgraph Cloud is built around Splitgraph Core (GitHub), which includes a local Splitgraph Engine packaged as a Docker image. Splitgraph Cloud is basically a scaled-up version of that local Engine. When you query the Data Delivery Network or the REST API, we mount the relevant datasets in an Engine on our servers and execute your query on it.
It's possible to run this engine locally. You'll need a Mac, Windows or Linux system to install sgr, and a Docker installation to run the engine. You don't need to know how to actually use Docker; sgrcan manage the image, container and volume for you.
There are a few ways to ingest data into the local engine.
For external repositories (like this repository), the Splitgraph Engine can "mount" upstream data sources by using sgr mount. This feature is built around Postgres Foreign Data Wrappers (FDW). You can write custom "mount handlers" for any upstream data source. For an example, we blogged about making a custom mount handler for HackerNews stories.
For hosted datasets, where the author has pushed Splitgraph Images to the repository, you can "clone" and/or "checkout" the data using sgr cloneand sgr checkout.
Mounting Data
This repository is an external repository. It's not hosted by Splitgraph. It is hosted by data.delaware.gov, and Splitgraph indexes it. This means it is not an actual Splitgraph image, so you cannot use sgr clone to get the data. Instead, you can use the socrata adapter with the sgr mount command. Then, if you want, you can import the data and turn it into a Splitgraph image that others can clone.
First, install Splitgraph if you haven't already.
Mount the table with sgr mount
sgr mount socrata \
"delaware-gov/certified-vendors-office-of-supplier-diversity-s4ev-nzhm" \
--handler-options '{
"domain": "data.delaware.gov",
"tables": {
"certified_vendors_office_of_supplier_diversity": "s4ev-nzhm"
}
}'That's it! Now you can query the data in the mounted table like any other Postgres table.
Query the data with your existing tools
Once you've loaded the data into your local Splitgraph engine, you can query it with any of your existing tools. As far as they're concerned, delaware-gov/certified-vendors-office-of-supplier-diversity-s4ev-nzhm is just another Postgres schema.