在我表格 class
中,我有一个自动生成的列 ID
。在插入时,我想获取自动识别的值,这个值应该为该列生成,而插入和粘合到要放置在 reF
列中的值,这是一个6位数独有的密钥。
我怎样才能找到下列的 < code> ID code >, 在前一列 < code> ID code > 上添加 < code> 1 < /code > 很容易, 但如果删除前一代代代号, 则会怎样? 请帮助我了解如何解决这个问题 。
我不想将删除项目的 ID
给予新项目。
在我表格 class
中,我有一个自动生成的列 ID
。在插入时,我想获取自动识别的值,这个值应该为该列生成,而插入和粘合到要放置在 reF
列中的值,这是一个6位数独有的密钥。
我怎样才能找到下列的 < code> ID code >, 在前一列 < code> ID code > 上添加 < code> 1 < /code > 很容易, 但如果删除前一代代代号, 则会怎样? 请帮助我了解如何解决这个问题 。
我不想将删除项目的 ID
给予新项目。
您可以使用 SCOPE_ IDENTIY () 来获取您当前范围中最后一个创建的身份值。 下一个值将会从中递增, 但是您不能确定它在您的范围、 其它范围或什么范围内。 删除不会影响下一个值是什么 。
你为什么需要"下一个价值"?
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