PostgreSQL SQLAlchemy 打开和关闭连接

运行 SQL INSERT 语句可使用 SQLAlchemy 打开和关闭与 Cloud SQL for PostgreSQL 的连接。

深入探索

如需查看包含此代码示例的详细文档，请参阅以下内容：

• 管理数据库连接

代码示例

Python

如需向 Cloud SQL for PostgreSQL 进行身份验证，请设置应用默认凭据。如需了解详情，请参阅为本地开发环境设置身份验证。

# Preparing a statement before hand can help protect against injections.
stmt = sqlalchemy.text(
    "INSERT INTO votes (time_cast, candidate) VALUES (:time_cast, :candidate)"
)
try:
    # Using a with statement ensures that the connection is always released
    # back into the pool at the end of statement (even if an error occurs)
    with db.connect() as conn:
        conn.execute(stmt, parameters={"time_cast": time_cast, "candidate": team})
        conn.commit()
except Exception as e:
    # If something goes wrong, handle the error in this section. This might
    # involve retrying or adjusting parameters depending on the situation.
    # ...

后续步骤

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