MySQL SQLAlchemy 打开和关闭连接
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运行 SQL INSERT 语句可使用 SQLAlchemy 打开和关闭与 Cloud SQL for MySQL 的连接。
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如需查看包含此代码示例的详细文档,请参阅以下内容:
代码示例
Python
如需向 Cloud SQL for MySQL 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。
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[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],[],[],[],null,["# MySQL SQLAlchemy opening and closing connections\n\nRun a SQL INSERT statement to open and close a connection to Cloud SQL for MySQL by using SQLAlchemy.\n\nExplore further\n---------------\n\n\nFor detailed documentation that includes this code sample, see the following:\n\n- [Manage database connections](/sql/docs/mysql/manage-connections)\n\nCode sample\n-----------\n\n### Python\n\n\nTo authenticate to Cloud SQL for MySQL, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n # Preparing a statement before hand can help protect against injections.\n stmt = sqlalchemy.text(\n \"INSERT INTO votes (time_cast, candidate) VALUES (:time_cast, :candidate)\"\n )\n try:\n # Using a with statement ensures that the connection is always released\n # back into the pool at the end of statement (even if an error occurs)\n with db.connect() as conn:\n conn.execute(stmt, parameters={\"time_cast\": time_cast, \"candidate\": team})\n conn.commit()\n except Exception as e:\n # If something goes wrong, handle the error in this section. This might\n # involve retrying or adjusting parameters depending on the situation.\n # ...\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=cloud_sql_mysql)."]]