python使用sqlalchemy-hana 连接 s安排
时间: 2024-05-14 11:15:00 浏览: 88
python-sqlalchemy
1. 安装sqlalchemy-hana
可以使用pip安装sqlalchemy-hana:
```
pip install sqlalchemy-hana
```
2. 导入模块
在python代码中导入sqlalchemy和sqlalchemy_hana模块:
```python
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy_hana import HANAConnector
```
3. 创建数据库连接
使用HANAConnector创建数据库连接:
```python
hana_conn = HANAConnector(
address='<HANA server address>',
port=3xx15,
user='<user>',
password='<password>',
encrypt='true'
)
engine = create_engine('hana://', creator=hana_conn.get_connection)
```
其中,`address`为HANA服务器的地址,`port`为HANA服务器的端口号,`user`和`password`为连接HANA服务器的用户名和密码,`encrypt`为是否使用加密连接。
4. 创建Session
使用`sessionmaker`创建Session:
```python
Session = sessionmaker(bind=engine)
session = Session()
```
5. 使用Session进行操作
使用创建的Session进行操作:
```python
result = session.execute('SELECT * FROM <table_name>')
for row in result:
print(row)
```
其中,`<table_name>`为需要查询的表名。
完整代码示例:
```python
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy_hana import HANAConnector
hana_conn = HANAConnector(
address='<HANA server address>',
port=3xx15,
user='<user>',
password='<password>',
encrypt='true'
)
engine = create_engine('hana://', creator=hana_conn.get_connection)
Session = sessionmaker(bind=engine)
session = Session()
result = session.execute('SELECT * FROM <table_name>')
for row in result:
print(row)
```
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