IDENTITYが有効になっているテーブルで間違えてDELETEとかして飛び番号を埋めたいときの対応方法。
SET IDENTITY_INSERT [テーブル名] ON
INSERT INTO [テーブル名] ([IDENTITYのカラム]) VALUES ([入れたい値])
SET IDENTITY_INSERT [テーブル名] OFF
最初にON、最後にOFFなのが間違えそう。
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