调用存储过程失败!出现如下错误:PROCEDURE ipbx.qu_ery can't return a result set in the given context, ipbx是数据库, qu_ery是自己写的存储过程的名字: 原因:连接数据库的方式不正确. 导致报错的连接方式: <?php if(!mysql_real_connect(&mysql,"localhost","root","123456","ipbx&…
C++调用存储过程失败!出现如下错误:MySQL Error: PROCEDURE xmdk.query_all_plan can't return a result set in the given context 其中: xmdk是数据库名称, query_all_plan是自己写的存储过程的名字: 错误原因:连接数据库的方式可能不正确. 导致报错的数据库连接方式: C++ Code 1234567891011 if (mysql_real_connect(m_mysql, serv…
因为很多存储过程都会共用一段sql语句,所以我把共用的sql封装成一个自定义函数 AddCapital(); 然后通过存储过程调用,创建存储过程会报错1415,Not allowed to return a result set from a function(不允许从函数返回结果集):因为存储过程返回值为int,你可以定义一个变量接收一下函数的返回值:再执行就没问题了.…
asp.net mvc返回文件: public ActionResult ExportReflection(string accessToken) { var reflections = GetCmsReflectionList(accessToken); var sb = new StringBuilder(); sb.AppendFormat("{0,-10},{1,-10},{2,-10},{3,-10},{4,-10},{5,-100},{6,-100},{7,-50}", &…
http://flylib.com/books/en/1.142.1.125/1/ Using Stored Programs with MySQLdb The techniques for calling stored programs with MySQLdb differ only slightly from those for using traditional SQL statements. That is, we create a cursor, execute the SQL to…
Mysql存储过程知识,案例: create procedure delete_setting(in p_settingid integer) begin delete from setting where settingid=p_settingid; end select `name` from mysql.proc where db = 'your_db_name' and `type` = 'PROCEDURE' show procedure status; show create pro…
Appendix B. Error Codes and MessagesTable of Contents B.1. Server Error Codes and MessagesB.2. Client Error Codes and MessagesThis appendix lists the errors that may appear when you call MySQL from any host language. The first list displays server er…
自己写了一个mysql存储过程,以为php有用于调用存储过程的内建函数,查了一下发现只能用mysql_query(call pro())这样的方式,我认为从本质上也就相当于在mysql命令行里执行语句了,由于我的存储过程含有输入输出参数,直接调用会报一个mysql_error错误:XXXXcan't return a result set in the given context google了一下这个错误发现有人用以下的代码解决了这个问题: 原文地址:http://www.phpwebl…
本文转自:http://msdn.microsoft.com/zh-cn/magazine/cc280502(en-us,SQL.100).aspx SQL statements and stored procedures frequently use input parameters, output parameters, and return codes. In Integration Services, the Execute SQL task supports the Input, Ou…
以前在采用Struts2开发的项目中,对JSON的处理一直都在Action里处理的,在Action中直接Response,最近研读了一下Struts2的源码,发现了一个更加优雅的解决办法,自己定义一个ResultType, 首先大家先看下Struts2中的源码 包com.opensymphony.xwork2下的DefaultActionInvocation 472行 /** * Save the result to be used later. * @param actionConfig cu…
using System; using System.Collections; namespace YieldDemo { class Program { public static IEnumerable Power(int num, int exponent) { int counter = 0; int result = 1; while (counter++ < exponent) { //if (counter == 4) yield break; if (counter == 4)…
以前在采用Struts2开发的项目中,对JSON的处理一直都在Action里处理的,在Action中直接Response,最近研读了一下Struts2的源码,发现了一个更加优雅的解决办法,自己定义一个ResultType, 首先大家先看下Struts2中的源码 包com.opensymphony.xwork2下的DefaultActionInvocation 472行 /** * Save the result to be used later. * @param actionConfig cu…
本文主要介绍带有返回值的Task和Continuation Task 带返回值的Task Continuation Task ContinueWhenAll即多任务延续 一.带返回值的Task 1.1代码演示 前一篇博客介绍了Task,主要是没有返回值的Task.本文所介绍的带有返回值的Task,返回值通过task.Result进行读取. class TaskFuture { public int Action() { Thread.Sleep(); ; } public int FutureD…
原题链接在这里:https://leetcode.com/problems/delete-nodes-and-return-forest/ 题目: Given the root of a binary tree, each node in the tree has a distinct value. After deleting all nodes with a value in to_delete, we are left with a forest (a disjoint union of…
题目如下: Given the root of a binary tree, each node in the tree has a distinct value. After deleting all nodes with a value in to_delete, we are left with a forest (a disjoint union of trees). Return the roots of the trees in the remaining forest. You…
前置: 默认情况下, 函数的返回值是 undefined (即没有定义返回值). new 操作符 js 中的 new 操作符,可以是我们像 java 一样,获得一个新的对象,例如: function Person() { this.heart = 'red'; } let per = new Person(); console.log(per.heart); // red 那么,在 new 的时候,内部发生了什么呢? 我们用伪代码模拟一下: new Person() = { var obj =…