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data-migration

majiayu000
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について

このスキルは、開発者がデータベースやシステムの移行(スキーマ変更、データ変換、データベースシステム間の移動を含む)を安全に計画・実行することを支援します。バージョン管理された移行、ロールバック戦略、データ整合性検証の機能を提供します。ゼロダウンタイム移行の実施、データのバックフィル、信頼性の高いシステム移行を確保する必要がある場合にご利用ください。

クイックインストール

Claude Code

推奨
プラグインコマンド推奨
/plugin add https://github.com/majiayu000/claude-skill-registry
Git クローン代替
git clone https://github.com/majiayu000/claude-skill-registry.git ~/.claude/skills/data-migration

このコマンドをClaude Codeにコピー&ペーストしてスキルをインストールします

ドキュメント

Data Migration - Safe Schema Changes

When to use this skill

  • Migrating database schemas and structures
  • Transforming data between formats
  • Moving data between database systems
  • Implementing versioned database migrations
  • Handling data transformations during migrations
  • Ensuring data integrity and validation
  • Planning zero-downtime migrations
  • Rolling back failed migrations safely
  • Migrating from legacy systems
  • Implementing data backfill strategies
  • Testing migrations in staging environments
  • Creating migration rollback procedures

When to use this skill

  • Migrating data between schemas, zero-downtime deployments.
  • When working on related tasks or features
  • During development that requires this expertise

Use when: Migrating data between schemas, zero-downtime deployments.

Process

  1. Add new column
  2. Dual-write to old & new
  3. Backfill historical data
  4. Switch reads to new column
  5. Remove old column

Example

```sql -- Step 1: Add column ALTER TABLE users ADD COLUMN email_new VARCHAR(255);

-- Step 2: Backfill UPDATE users SET email_new = email WHERE email_new IS NULL;

-- Step 3: Swap ALTER TABLE users DROP COLUMN email; ALTER TABLE users RENAME COLUMN email_new TO email; ```

Resources

GitHub リポジトリ

majiayu000/claude-skill-registry
パス: skills/data-migration

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