优化更新
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@@ -15,11 +15,7 @@
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首次部署时,使用初始化脚本一键完成建库、建表、Flask-Migrate stamp:
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```bash
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# 方式一:直接运行脚本
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python scripts/setup_db.py
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# 方式二:Make 命令
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make db-init
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```
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:::tip 初始化流程
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@@ -40,7 +36,7 @@ make db-init
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flask db migrate -m "描述变更内容"
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# 或使用 Make 命令
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make migrate-revision
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flask db migrate
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```
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:::tip 注意事项
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@@ -56,7 +52,7 @@ make migrate-revision
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flask db upgrade
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# 或使用 Make 命令
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make migrate-upgrade
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flask db upgrade
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```
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### 回滚迁移
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@@ -87,7 +83,7 @@ flask db history
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flask db stamp head
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# 或使用 Make 命令
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make migrate-stamp
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flask db stamp head
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```
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## 跨库数据迁移
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@@ -111,7 +107,7 @@ make migrate-stamp
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| 目标库 | 驱动包 | 说明 |
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|:----|:----|:----|
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| PostgreSQL | psycopg[binary] | psycopg3 |
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| PostgreSQL | psycopg2-binary | psycopg2 |
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| SQL Server | pymssql | - |
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| SQLite | 内置 | 无需额外驱动 |
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| Oracle | oracledb | thin 模式,无需安装 Oracle Client |
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@@ -362,14 +358,14 @@ CREATE SEQUENCE flask_user_id_seq START WITH <max_id+1>;
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| 场景 | 命令 |
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|------|------|
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| 全新安装 | `make db-init` |
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| 模型变更后生成迁移 | `make migrate-revision` |
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| 应用迁移 | `make migrate-upgrade` |
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| 全新安装 | `python scripts/setup_db.py` |
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| 模型变更后生成迁移 | `flask db migrate` |
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| 应用迁移 | `flask db upgrade` |
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| 回滚一次迁移 | `flask db downgrade -1` |
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| 标记已有库为最新 | `make migrate-stamp` |
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| 标记已有库为最新 | `flask db stamp head` |
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| 跨库迁移干跑 | `make db-migrate-dry-run ARGS="..."` |
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| 跨库迁移执行 | `make db-migrate ARGS="..."` |
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## 总结
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数据库迁移分为结构迁移(Flask-Migrate / Alembic)和数据迁移(`migrate_db.py`)两部分。全新安装用 `make db-init`,模型变更用 Flask-Migrate 自动生成迁移脚本,跨库切换用 `migrate_db.py` 数据泵。建议每次迁移前先干跑确认,生产环境务必做好备份。
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数据库迁移分为结构迁移(Flask-Migrate / Alembic)和数据迁移(`migrate_db.py`)两部分。全新安装用 `python scripts/setup_db.py`,模型变更用 Flask-Migrate 自动生成迁移脚本,跨库切换用 `migrate_db.py` 数据泵。建议每次迁移前先干跑确认,生产环境务必做好备份。
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