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cobol-java-v3/.claude/skills/code-review/references/manual-review/data-migration.md
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NB-076 2f61ad7f1a feat: 集成code-review skill到项目 
- 项目级 skill: .claude/skills/code-review/ (398行SKILL.md + 参考文件)
- 自动触发: AI修改.py/.cbl/.cpy/.lark后自动review
- CLAUDE.md: 定义触发规则、review流程、严重级别
- .code-review.yaml: tier=standard, 高风险模块配置

效果: clone即用, 每次代码变更后自动审查, 防止低质量代码入库
Co-Authored-By: Claude <noreply@anthropic.com>
2026-06-25 10:24:15 +08:00

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Data Migration — Manual Review Checklist

Rollback Plan

  • Rollback script tested and ready before migration
  • Rollback handles partial migration state
  • Rollback is idempotent
  • Database backup taken before migration

Consistency Verification

  • Migration verification query defined (row count, checksum, sample compare)
  • Old and new data validated before old table dropped
  • Foreign key constraints preserved
  • Indexes migrated or recreated

Large Table Strategy

  • Batch processing with configurable batch size
  • Migration doesn't lock table for extended period
  • Progress tracking (how many rows processed)
  • Rate limiting to avoid DB overload
  • Dry-run mode tested before actual migration

Idempotency

  • Migration script is idempotent (can be re-run safely)
  • Uses INSERT ON CONFLICT / INSERT IGNORE / MERGE as appropriate
  • Migration tracks what has been processed (checkpoint table)
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