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mysql-请各位给我个思路啊？？

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Release： 2016-06-06 09:41:26
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mysqlasp.net网页设计

我要做一个订单表 里面有id字段 自增 还有个订单编号 orderNumber

订单号的格式要求是“年份后两位+月份+日期 后面顺序补三位” 请问应该怎样实现？
设置成自增肯定不行 ，因为已经有了order自增， 而且 order显示的是“1，2，3”
格式，不满足三位。那可不可以让table.orderNumber=table.order呢？ 那还的在前面
加占位符？ 应该怎样做啊？请各位给个思路啊?

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mysql asp.net 网页设计
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