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数据库批量写入判断问题

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Jun 23, 2016 pm 02:04 PM

我所做的功能是一个订单导入的功能，就把xls里面的数据导入到mysql，每次1000条左右.

现在的问题是，每一条记录有个编码，我先要查一下这个编码系统中有没有建好，建好的，就导入，如果没有建好就这一整批都不导入系统，请问应该怎么做呢？？

回复讨论(解决方案)

没看明白，每条记录一个编码，但是这个编码没有建好，怎么就一整批不能导入，不是这条不能导入吗？
如果是我想的那一条不能导入，可以这样做：
先把那1000条数据从XLS文件里读出，同时把编码表从数据库读出，以编码为主键建立一个数组，然后循环读取你那1000条数据，每次用这条数据的编码查找编码数组中是否存在，不存在则跳过，存在则保存入数据库。当然你可以编写SQL语句最后一次性保存。

jzh2004大大能不能详细说明一下啊

我再说一下，我们会从网上下载一个订单明细下来，就是每天销售的订单明细，每条记录里面有个物料编码，我做的这个页面就是把订单明细导入到一个PHP ERP系统里面，但是有时候新的物料同事会忘记在ERP里面添加上去。我就是想做个判断，先判断订单明细里面这1000条记录，在ERP系统里面是不是全部都有，只要一个没有都就停止导入。

纯粹是没事找事，自找麻烦！
实现起来很简单，对于每条内容
先检查编码是否存在（select）
根据结果再插入（insert）

显然你们的系统使用了外键（纯属自己给自己造麻烦）
其实直接插入也没有关系，反正不是出错就是插入无效

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