似乎我没有grok SPARQL DESCRIBE查询.我需要检索匹配条件的资源的完整图表.在我尝试过的一个SPARQL端点上(NorwegianRådataNå,http://data.bibsys.no/data/query_authority.html )这个工作正常:
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
DESCRIBE ?person WHERE {
?person rdf:type foaf:Person .
FILTER EXISTS { ?person owl:sameAs ?sameAs }
}
LIMIT 100
我得到一个具有owl:personAs三元组的Person资源的结果.
在其他SPARQL端点上,Onki Light(http://sparql.onki.fi/sparql.tpl)和DBPedia(http://dbpedia.org/sparql)类似的查询
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
DESCRIBE ?x WHERE {
?x rdf:type skos:Concept .
FILTER EXISTS { ?x skos:prefLabel ?prefLabel }
}
LIMIT 100
返回大量资源,既没有rdf:Type = skos:Concept也没有skos:prefLabel,所以我显然没有正确地进行查询.应该如何陈述这种查询以产生我需要的结果？
我有一个包含三个服务（Solr、PostgreSQL 和 pgAdmin）的 docker-compose 文件，所有服务都共享 Docker 网络。
version: '2'
services:
solr:
image: solr:7.7.2
ports:
- '8983:8983'
networks:
primus-dev:
ipv4_address: 10.105.1.101
volumes:
- data:/opt/solr/server/solr/mycores
entrypoint:
- docker-entrypoint.sh
- solr-precreate
- primus
- /opt/solr/server/solr/configsets/sample_techproducts_configs
environment:
- SOLR_HEAP=2048m
logging:
options:
max-size: 5m
db:
image: "postgres:11.5"
container_name: "primus_postgres"
ports:
- "5432:5432"
networks:
primus-dev:
ipv4_address: 10.105.1.102
volumes:
- primus_dbdata:/var/lib/postgres/data
environment:
- POSTGRES_DB=primus75
- POSTGRES_USER=primus
- POSTGRES_PASSWORD=primstav
pgadm4:
image: "dpage/pgadmin4"
networks:
primus-dev:
ipv4_address: 10.105.1.103
ports:
- "3050:80"
volumes:
- /home/nils/docker-home:/var/docker-home
environment:
- PGADMIN_DEFAULT_EMAIL=nils.weinander@kulturit.se
- PGADMIN_DEFAULT_PASSWORD=dev
networks: …我有一个Bootstrap两列布局,在窄屏幕上折叠成一个.
糟糕的ASCII艺术:
+-------------------+-------------------+
| Div A | Div B1 |
| +-------------------+
| | Div B2 |
| +-------------------+
| | Div B3 |
+-------------------+-------------------+
坍塌到
+-------------------|
| Div B1 |
+-------------------+
| Div B2 |
+-------------------+
| Div B3 |
+-------------------+
| Div A |
| |
| |
| |
| |
+-------------------+
A具有类col-md-6,B1-B3包含在具有类col-md-6 col-md-push-6的div B中.这工作得很好,但布局会更好
+-------------------|
| Div B1 |
+-------------------+
| Div A |
| |
| |
| |
| | …