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参数化查询赋空值

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- 已标记为答案 CaillenModerator 2015年6月8日 10:10
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- 已标记为答案 CaillenModerator 2015年6月8日 10:10
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应该是数据库中该列不可为Null,要么修改数据库列, Allow Nulls设置为True, 要么校验数据,不允许传递null。
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