{
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  "as_of": "2026-10-23",
  "item": {
    "id": "METHOD-0273",
    "kind": "METHOD",
    "title": "PostgreSQLのtransactionで検証変更をまとめて戻す",
    "last_verified": "2026-10-23",
    "currentness": "VERIFIED_AS_OF",
    "revision": 1,
    "requirements": [
      "対象データへの権限",
      "接続先または入力ファイルを確認する",
      "原典と導入済みversionの対応を確認し、権限のある検証用入力・別の出力先を用意する"
    ],
    "suitable_for": "SQL更新の効果を検証DBで確かめる場面。",
    "unsuitable_for": "rollbackを前提に本番の外部副作用を伴う処理を試す用途。",
    "purpose": "PostgreSQLのtransactionで検証変更をまとめて戻す",
    "composition": "PostgreSQL",
    "shortest_path": [
      "専用の検証データと更新範囲を決める",
      "BEGIN内で変更し、結果をSELECTで読む",
      "ROLLBACKして元の値を確認する"
    ],
    "verification": "transaction前後の値を照合し、sequenceや外部副作用などrollback対象外も区別します。",
    "coverage": [
      "database/SQL",
      "data transformation"
    ],
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    "publication": "PUBLIC_NO_ADS",
    "index": "INDEX",
    "ads": "OFF",
    "link_policy": "DIRECT"
  },
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      "object_id": "IDX-C03-004",
      "scope_note": "検証・運用上の関連概念。製品の基本定義とは区別する。",
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