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问题 I've started to examine Procedures in MySQL, but all my efforts don't work. Here is my Procedure Creation: DELIMITER // CREATE PROCEDURE test(IN a INT) BEGIN SELECT * FROM `table` WHERE `id` = a; END MySQL returns O.K., no errors. DELIMITER ; MySQL returns O.K., no errors. But CALL-Statement does not work: CALL test(8); Returns an error: #1312 - PROCEDURE dbxyz.test can't return a result set in the given context Now, I don't know what I've made wrong: a mistake in Procedure-Cration or an

问题 So, I want to call a Python callback function from C. At some point, the function is sent to C and packed into a tuple like this PyObject *userData = Py_BuildValue("Oi",py_callback,some_number); Somewhere in that area, I do Py_INCREF(py_callback) , too. At some later time in the program, I want to call that function PyObject *py_callback; int some_number; PyArg_ParseTuple((PyObject*)userData,"Oi",&py_callback,&some_number); // returns true PyObject *py_result = PyObject_CallFunctionObjArgs(py

问题 I got two files in C:\temp\SQL\alex.sql and in C:\temp\alex.ps1 . In C:\temp\SQL\alex.sql , that is simply select count(*) from user_tables; quit; In C:\temp\alex.ps1 , that is $cmd = "sqlplus"; $args = "user/password@server/sid @C:\temp\SQL\alex.sql"; &$cmd $args; I tried the command in Command Prompt sqlplus user/password@server/sid @C:\temp\SQL\alex.sql which executed perfectly! The SQL file is not executed at all, but SQL*Plus help is shown. What did I do wrong? Thanks! 回答1: I found the

问题 I'm having some problems with SMS alerts and call notification freezing up the video player. I'm currently displaying a video using MPMoviePlayerController with movieControl Hidden. I'm also overlaying a subtitle using UITextView on top of the video. However whenever a SMS alert popup, the video will freeze up but the textView will continue to scroll. A call alert will also intrupt the video, causing the video to freeze up while the text continue scrolling, which leads to misallignment. So is

问题 I am new at iPhone development. I want to access iOS6 call_history. My code work for iOS5 but not work for iOS6. please help me to solve this problem. Many Thanks. 回答1: You cannot access the call log using the SDK and approved APIs. There are some workarounds, as you probably already know. The only option I know about is accessing call_history.db . Take a look at this tutorial. Unfortunately for you, security has been made more severe, and you only can access that file in iOS < 5.0 (and

问题 I have of list of variable names. list = c("smoke", "ptd", "ht", "ui", "racecat", "visit") I want to make a series of plots like this. plot(low[somevariable=="0"] ~ age[somevariable=="0"]) I'd like to replace somevariable with each of the variable name in the list. For example, plot(low[smoke=="0"] ~ age[smoke=="0"]) plot(low[ptd=="0"] ~ age[ptd=="0"]) ...... plot(low[visit=="0"] ~ age[visit=="0"]) I've tried to create a for-loop and use a variety of things to replace somevariable, such as

问题 Can you anyone please help me (noob) call the broadcast function from class BroadcastServerFactory in class process , as per attached code I have tried so many methods of call a function from another class, but no solution import time, sys from apscheduler.scheduler import Scheduler import threading import socket from twisted.internet import reactor from twisted.python import log from twisted.web.server import Site from twisted.web.static import File from autobahn.websocket import

问题 I use the following code to handle incoming calls from within a service. It works perfectly when i invode the endCall method (My phone's Android Version is ICS). But when I invoke the answerRingingCall method i get an exception for not having permission to modify phone state. I know that Google revoked this permission at one point but since i can invoke the end call method what is the explanation for not being able to invoke the answer call method as well? I mean..both methods modify the

问题 I have a web application made with Spring that runs on Tomcat. On the same machine there is a normal Java application. I would like to execute the Java application by calling it from the web server, but i want to make it so the application won't use the server's resources (it involves the training of a classifier so it may take up a lot of resources and time) and it must not hang the server (so it must be called asynchronously). Is there any way to do that? 回答1: You have two options. Start a

问题 When using the telprompt intent on iOS like window.location = 'telprompt://' + phoneNumber the user gets prompted to either call the number or cancel. Is there a way to know which of the two actions the user has made? Looking at the PhoneGap docs the "startcallbutton" event is only supported on BlackBerry. 回答1: All you can do is listen for the pause event. document.addEventListener("pause", yourCallbackFunction, false); This event will be fired when there is an incoming call or starting a