two fields are aggregated. The first is a normal field user_id, and the second is a date. Date, date needs to be aggregated according to fuzzy aggregation. For example, if the date is 2018-02-15, the data of aggregate user_id,2018-02 is the GROUP BY of ...
I now provide interfaces to the front end. When designing an API, should I try to complete an operation in one API or split it into multiple API? for example, do a function to upload a picture, upload the picture to the file and return it to url, an...
there are multiple items under an order. The order object is stored in the form of nested, and an order is a piece of data. order 1-> Commodity A, Commodity B, Commodity C, Commodity D order 2-> Commodity A, Commodity B, Commodity C, Commodity D. or...
<script src=" unpkg.com vue dist vue.js">< script> <script src=" unpkg.com element-ui@2.5.4 lib index.js">< script> <div id="app"> <el-form :model="ruleForm" :rules="rules&qu...
Where is the cookie stored in the browser? Cookie and token, why only hijack the former? ...
which react vue angular is more suitable for background management system? ...
keep reporting this error. I don t know what the problem is. Does anyone know this problem? ...
the server port 8080 of webpack is well developed and debugged. The local port 80 can only open the home page, and all other paths are [an error occurred while processing this directive] The requested URL was not found on this server.. If you entered th...