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使用 Google Gemini、Vanna Hosted Vector DB(推荐)为 SQLite 生成 SQL

这个 notebook 详细介绍了如何使用 vanna Python 包,通过 AI (RAG + LLMs) 生成 SQL,包括连接数据库和进行训练。如果您还不准备在自己的数据库上训练,仍然可以使用示例 SQLite 数据库 进行尝试。

使用 Colab 运行 在 GitHub 中打开

您想使用哪种大语言模型?

您想将“训练”数据存储在哪里?

设置

%pip install 'vanna[gemini]'
from vanna.vannadb import VannaDB_VectorStore
from vanna.google import GoogleGeminiChat
class MyVanna(VannaDB_VectorStore, GoogleGeminiChat):
    def __init__(self, config=None):
        MY_VANNA_MODEL = # Your model name from https://vanna.org.cn/account/profile
        VannaDB_VectorStore.__init__(self, vanna_model=MY_VANNA_MODEL, vanna_api_key=MY_VANNA_API_KEY, config=config)
        GoogleGeminiChat.__init__(self, config={'api_key': GEMINI_API_KEY, 'model': GEMINI_MODEL})

vn = MyVanna()

您想查询哪个数据库?

vn.connect_to_sqlite('my-database.sqlite')

训练

您只需要训练一次。除非想添加更多训练数据,否则无需再次训练。

df_ddl = vn.run_sql("SELECT type, sql FROM sqlite_master WHERE sql is not null")

for ddl in df_ddl['sql'].to_list():
  vn.train(ddl=ddl)
# The following are methods for adding training data. Make sure you modify the examples to match your database.

# DDL statements are powerful because they specify table names, colume names, types, and potentially relationships
vn.train(ddl="""
    CREATE TABLE IF NOT EXISTS my-table (
        id INT PRIMARY KEY,
        name VARCHAR(100),
        age INT
    )
""")

# Sometimes you may want to add documentation about your business terminology or definitions.
vn.train(documentation="Our business defines OTIF score as the percentage of orders that are delivered on time and in full")

# You can also add SQL queries to your training data. This is useful if you have some queries already laying around. You can just copy and paste those from your editor to begin generating new SQL.
vn.train(sql="SELECT * FROM my-table WHERE name = 'John Doe'")
# At any time you can inspect what training data the package is able to reference
training_data = vn.get_training_data()
training_data
# You can remove training data if there's obsolete/incorrect information. 
vn.remove_training_data(id='1-ddl')

```## Asking the AI
Whenever you ask a new question, it will find the 10 most relevant pieces of training data and use it as part of the LLM prompt to generate the SQL.
```python
vn.ask(question=...)

启动用户界面

vanna-flask

from vanna.flask import VannaFlaskApp
app = VannaFlaskApp(vn)
app.run()

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仅通过提问即可快速获取数据库中的洞察