Question

表架构：

Employee (empid, emp_name, age, DOB, designation, doj, basic_salary, salary_amt, medical_allowance, pension, GPFund, TA, House_allowance)
Monthly_salary (id, empid, year, month, total_salary)

查询：

UPDATE `monthly_salary` 
     SET `total_salary`=`employee`.'salary_amt' -`employee`.'medical_allownces' - `employee`.'pension' 
     WHERE `employee`.'empid'=`monthly_salary`.'emp_id'

我试图在phpmyadmin中运行此查询，但它没有运行并出错。员工empid在月薪表中用作外键。

Answer 1

删除单个qoutes <script type="text/javascript" src="/js/jquery.min.js"></script> <script type="text/javascript" src="/js/jquery.easyui.min.js"></script> <script type="text/javascript" src= "/js/jquery.datagrid.js"></script> <script type="text/javascript" src="/js/datagrid-filter.js"></script> <script type="text/javascript" src= "/js/datagrid-bufferview.js"></script> <form id="MyUpload" method="post" name="MyUpload" enctype="multipart/form-data" action="<portlet:actionURL/>">  <table> <tr> <td> <div align="right">Name</div> </td> <td> <input type="text" name="name" id="name"/> </td> <td> <div align="right" width="180px">Branch</div> </td> <td> <input type="text" name="branch" id="branch"/> </td> <td> <div align="right" width="180px">Order No:</div> </td> <td> <input name="orderNo" id="orderNo" type="text"/> </td> </tr> </table> <table> <tr> <td align="right" colspan="2"> <a id="addId" onclick="HandleBrowseClick();">Add</a> </td> </tr> <table> <table> <div> <div style="margin: 10px 0 0 0; border-bottom: none;" class="gridTbl"> <div class="easyui-panel" title="Upload details"> <table id="dg" class="tt" style="width: 980px;" data-options=" singleSelect:true, rownumbers:true, reload:true, pagination:true, view:bufferview, pageSize:10 "> <thead> <tr> <th data-options="field:'name',width:100">Name </th> <th data-options="field:'branch',width:100">Branch</th> <th data-options="field:'orderNo',width:100">Order No</th> </tr> </thead> </table> </div> </div> </div> </tr> </table> </form> function HandleBrowseClick() { var name = $("#name").val(); var branch= $('#branch').val(); var orderNo = $('#orderNo').val(); $('#dg').datagrid('appendRow', { name : name, branch : branch, orderNo : orderNo }); }

应该像这样讨厌

我给表别名，让它更容易阅读。

Answer 2

您的查询中未使用加入更新。

UPDATE monthly_salary a
    JOIN employee b  ON  b.empid = a.emp_id
SET a.total_salary=b.salary_amt - b.medical_allownces - b.pension;

在PHPmyadmin中运行SQL Query时出错

2 个答案: