sql 數據庫
在使用 insert into 表名 select union all 時報錯
原因：
在插入該表時，該表 有一個設自增長的字段
解決：
1.
設置允許自增長字段插入數據
set IDENTITY_INSERT dbo.SysBillStatusFuncItem ON
在插入元素后，記得set IDENTITY_INSERT dbo.SysBillStatusFuncItem OFF
2.
插入數據 給自增長字段賦值
這里的seq 是自增長字段
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