A connect graphdb package
Project description
graphdb
介绍
python 连接 graphdb 数据库的包
功能
一、数据管理
1. 通过执行SPARQL语句就可查询和更新Graph数据库
2. 下载数据并保存
3. 上传数据
4. 删除所有的节点数据
二、数据库管理
1. 获取现有的repository列表
2. 删除现有的repository
3. 创建一个repository
4. 重启现有的repository
5. 获取现有的repository size
安装教程
pip install pygraphdb
快速上手
1. 导入包
import pygraphdb
2. 数据库 config
host = '0.0.0.0'
port = '7200'
db_name = 'db_name'
user = 'admin'
password = 'password'
3. sparql 语句(例)
sparql = "PREFIX disease_type_iri:<http://schema.omaha.org.cn/property/> " \
"select distinct ?x ?y where { ?x disease_type_iri:Alternatename ?y .}"
4. 连接数据库
db = pygraphdb.connect(host=host, port=port, user=user, password=password, db=db_name)
5. 获取 cursor
cur = db.cursor()
6. 执行sparql语句,得到结果
result = cur.execute(sparql)
7. 打印结果
print(result)
8. 关闭 cursor
cur.close()
9. 关闭数据库
db.close()
使用with连接
1.第一种方式
with pygraph.connect(host, port, user, password, db) as db2:
#获取 cursor
cur2 = db2.cursor()
#执行sparql语句,得到结果
result2 = cur2.execute(sparql)
cur2.close()
print(result2)
2.第二种方式
db3 = pygraph.connect(host, port, db, user, password, db)
with db3.cursor() as cur3:
result3 = cur3.execute(sparql)
print(result3)
db3.close()
数据管理
import pygraphdb
host = '0.0.0.0'
port = '7200'
db_name = 'db_name'
user = 'admin'
password = 'password'
db = pygraphdb.connect(host, port, user, password, db_name)
cur = db.cursor()
"""
执行查询语句
"""
r = cur.execute('select * where {?s ?p ?o .} limit 100 ')
print(r)
"""
上传数据
"""
r2 = cur.upload_data('./example.owl')
print(r2)
"""
下载数据
"""
r3 = cur.download_data('./download_result.owl')
print(r3)
"""
删除全部节点数据
"""
r4 = cur.delete_all_data()
print(r4)
cur.close()
db.close()
数据库管理
import pygraphdb
host = '0.0.0.0'
port = '7200'
user = 'admin'
password = 'password'
db = pygraphdb.connect(host, port, user, password)
manager = db.manage_repository()
"""
创建一个repository
"""
db_name = 'example'
r = manager.create_repository_graphdb_free(db_name)
print(r)
"""
删除一个repository
"""
r2 = manager.delete_repository(db_name)
print(r2)
"""
查询所有的repository列表
"""
r3 = manager.get_repository_list()
print(r3)
"""
重启repository
"""
r4 = manager.restart_repository(db_name)
print(r4)
"""
获取数据库大小
"""
r5 = manager.get_repository_size(db_name)
print(r5)
manager.close()
db.close()
参与贡献
刘洪波
参考资料
grapddb 使用教程: https://graphdb.ontotext.com/documentation/free/index.html
Project details
Release history Release notifications | RSS feed
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distribution
pygraphdb-2.0.3.tar.gz
(11.8 kB
view details)
File details
Details for the file pygraphdb-2.0.3.tar.gz
.
File metadata
- Download URL: pygraphdb-2.0.3.tar.gz
- Upload date:
- Size: 11.8 kB
- Tags: Source
- Uploaded using Trusted Publishing? No
- Uploaded via: twine/5.0.0 CPython/3.11.7
File hashes
Algorithm | Hash digest | |
---|---|---|
SHA256 | 244c967e10d6c5fbdef0e6e3dc421411e7f022440773707f8ef71ab5625d517a |
|
MD5 | 5749f087c261066df93d0063d1888cbb |
|
BLAKE2b-256 | f55a2471b4808f353bf7d3e140b7f10a905798e88dce3f5bf5a978b870c5019b |