Daniel Hernandez
d2481d6e80
19 queries in updates/ convert categorical columns (continent, country, city, gender, profession, etc.) from literals to typed RDF objects with rdfs:label. map/step-02.rb applies them to produce data/graph-02.ttl. Also fix step-01.rb to sanitize column names with spaces and avoid prefix serialization issues with fragment IRIs.
15 lines
527 B
SPARQL
15 lines
527 B
SPARQL
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
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DELETE {
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?s <http://example.org/migrants/migration_table#reason2> ?val .
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}
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INSERT {
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?s <http://example.org/migrants/migration_table#reason2> ?obj .
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?obj a <http://example.org/migrants/MigrationReason> .
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?obj rdfs:label ?label .
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}
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WHERE {
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?s <http://example.org/migrants/migration_table#reason2> ?val .
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BIND(IRI(CONCAT("http://example.org/migrants/MigrationReason-", ENCODE_FOR_URI(REPLACE(?val, " ", "")))) AS ?obj)
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BIND(STRLANG(STR(?val), "en") AS ?label)
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}
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