SQLAlchemyã§ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã® master / slave å‚照切り替ãˆã‚’行ㆠ- アルパカDiary Pro
SQLAlchemy㧠「更新ã¯MasterDB〠「å‚ç…§ã¯SlaveDB〠ã¨ã„ã†ã“ã¨ã‚’実ç¾ã—ãŸã‹ã£ãŸã®ã§èª¿æŸ»ãƒ¡ãƒ¢ã‚’残ã—ã¦ãŠã。 カスタマイズSessionクラスを作ã£ã¦ãã®ä¸ã§Master/Slave判定ã™ã‚Œã°è‰¯ã„よã†ã 。 サンプルアプリケーション Flask使ã£ã¦ã¿ã‚‹ã€‚ config.py # Master / Slaveã®DBæƒ…å ±ã‚’æ›¸ã„ã¦ãŠã SQLALCHEMY_ENGINES = { 'master' : 'mysql://db[email protected]/appdb', 'slave1' : 'mysql://db[email protected]/appdb', 'slave2' : 'mysql://db[email protected]/appdb', } database.py # encoding:utf-8 from sqlalchemy import creat
zzzeek : Django-style Database Routers in SQLAlchemy
Mike Bayer is the creator of many open source programming libraries for the Python Programming Language, including SQLAlchemy, Alembic Migrations, Mako Templates for Python, and Dogpile Caching. Dilly and Posy were dedicated members of the team. Dilly and Posy were best of friends, and after a few years in different worlds are together again. We will always love and miss you Dilly and Posy! Catego
PostgreSQL — SQLAlchemy 2.0 Documentation
DBAPI Support¶ The following dialect/DBAPI options are available. Please refer to individual DBAPI sections for connect information. psycopg2 psycopg (a.k.a. psycopg 3) pg8000 asyncpg psycopg2cffi Sequences/SERIAL/IDENTITY¶ PostgreSQL supports sequences, and SQLAlchemy uses these as the default means of creating new primary key values for integer-based primary key columns. When creating tables, SQ
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Transactions and Connection Management — SQLAlchemy 2.0 Documentation
How do I INSERT INTO t1 (SELECT * FROM t2) in SQLAlchemy?
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A practical guide to using Alembic
Template for SQLAlchemy Declarative : milkbox
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