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A DELETE statement requires an exclusive lock on a table.If there are a significant number of deletes while simultaneously there is also a lot of SELECT traffic, this may impact performance. One trick that can be used is to turn the delete into an insert! Consider the following example: [B]CREATE … | |
Hi forum, Trying to create an RSS feed for my blog (not using a blog host or blog software). Seems to me the best way for me to do it is to use PHP in the XML to draw the last X posts from my MySQL database. So first, I … | |
hi.. i just wanted to knw What is BusinessLogic Class in C#?? how it can be used in a program? & which namespaces should be used to access this class..?? i tried adding new namespaces bt it is not working. i will b reli happy if anyone helps me.. thanx.. | |
I need some advice from people who know what they're are talking about. The question I am struggling with is below and my attempt is below that. Can you tell where I'm going wrong? Thanks. I'm trying to acheive this: (A) Read the first name and the surname of a … | |
Hello there. I'm having a problem with a linker error. I am trying to compile a project (just a hobby). It manages to compile, but I get a link error when trying to link. I don't see anything wrong with the code at all. I am using Dev-C++. This is … | |
hi.. i have problem in which im using a login form as my first form.when i log in, a 2nd form shows up with a button. when i click on the button i want a messagebox to be appear with a certain msg. i want to change the font of … | |
Hi everybody, So i am totally new to the programming world but I have manage so far to learn how to connect to mysql database to Java and execute a simple query. However, I would like to know if there's a way I could make this query to look like … | |
hello to all , i have problem , my sql table called Kings and its look like this ID Game1 Game2 Game3 Game4 Game5 Game6 Game 7 Date Username 1 213 222 323 232 522 212 122 3.4.09 user1 2 214 212 325 432 262 222 292 3.4.09 user55 3 … | |
i have problem that in showpane Modify and Delete pane3 eventhough clicked delete button for the action but the combobox "Select Book" doesnt update in the list that the deleted book still exist. What happen ? any guide ? thx in advance . [CODE]import java.awt.*; import java.awt.event.*; import javax.swing.*; import … | |
[CODE]#include <iostream> #include <fstream> using namespace std; void PrintError(fstream&, char, bool&); int Conversion(fstream&, char&, bool&); int main() { fstream InFile; char Bit; int Decimal; bool BadBit = false; //Open file to read InFile.open("f:\\Binary.txt",ios::in); //Read the first bit of the number InFile.get(Bit); //continue reading all numbers till the end of file … | |
Hi everyone,this program prompts a user for a leap yr code and a day code resulting in an entire year's calendar.The result displays months one below another.Can some one tell me how to make it print 2 months next to each other,that is JAN FEB then MAR APRIL below them. … | |
Hi. I am developing an e-mail application for lab works. I am using servlets mainly along with JSP and using HTML with CSS. I have two questions.Please tell me the solutions. Its important and its urgent. 1. As usual I give the provision for attachments.I wrote code for uploading files … | |
hello . I am trying to simulate the MD5 hashing algo. My code: [CODE] private void jButton1MouseClicked(java.awt.event.MouseEvent evt) { try { MessageDigest object = MessageDigest.getInstance("MD5"); String str = jTextField1.getText(); byte arr [] = str.getBytes(); object.update(arr);//update the md5 object with the message arr = object.digest();//calculate the digest str = IntegerToHex(arr);//convert to … | |
Hi, Can somebody let me know how to check whether particular network drive is mapped or not e.g x:\\share1\share2? Regards, Rana | |
Hello guys, I am converting my servlet page into mvc form and struck at perticular point. I am using DAO class and VO class for database related tasks.Here I am sending u a little bit of my code segments so taht u can understand my problem. In DAO class:- //I … | |
hi evrybodt plzhelp me in vb6 hough transform for circle detection.....i need its code as soon aspossible..... | |
The following is a simple program on 'while ... do': program dowhile; {$APPTYPE CONSOLE} uses SysUtils, Ourcrt; Var my_words: string; begin [COLOR="Green"] my_words:=''; writeln('Enter some words (type "stop" to finish):'); readln(my_words);[/COLOR] while (my_words<>'stop')do begin clrscr; writeln('You typed:'); [COLOR="Red"] writeln(my_words); writeln; writeln('Enter some words (type "stop" to finish):'); readln(my_words);[/COLOR] end; end. … | |
Hello, When the JS file is not working at the time of Ajax files is called. on first time the onmouseover JS is working but , if you call the ajax JS is not working. | |
hi, if I had: [code=C++] char* arr; [/code] and want to add character one by one into [B]arr[/B]. How could I? I don't wanna use vectors! thanks | |
hi, everyone i'm new in java programming i need help in my simple project i have list contain names of persons from db .. i finished it using access ... the problem that i wanna to 'when i select any name of this two window open and chat between each … | |
I getting an error from a code that I have been working on. The error is Exception in thread "main" java.util.InputMismatchException at java.util.Scanner.throwFor(Unknown Source) at java.util.Scanner.next(Unknown Source) at java.util.Scanner.nextInt(Unknown Source) at java.util.Scanner.nextInt(Unknown Source) at sample2.AdditionalMethods.main(AdditionalMethods.java:57) My code for the information is package sample2; public class shape { private String Name; … | |
I am begginer in C so please be easy on me.....:-) Anyways....my query is I have a server and a Client program written in C(attached below) for test in UNIX/LINUX in which the client sends a request to the server and the server then sends back the request to the … | |
I'm going to be working on a summer research project with my college's robotics team. My task is going to be to develop a program to communicate with the robot via 802.11g. I would really like to stick to straight C++, and if I can't then C# is also an … | |
I want to update data using DataGridView in Visual Studio2008 with the following code. But it is not working. Plz help me. Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click cmd = New Odbc.OdbcCommand("UPDATE Table1 SET Name") Me.Table1TableAdapter.Update(DataSet1.Table1) MsgBox("Updated") End Sub | |
this is giving me an error at the line that says loc = (zip.find("605", 0)); can't tell why?!? [CODE]void calcShippingCharge(string zip, int RATE605, int RATE606, int &chg) { //search zip code for proper prefix int loc = 0; loc = (zip.find("606", 0)); if (loc >= 0) chg = RATE606; else … | |
Hey everybody, I am trying to initialize a deck of cards using a structured data type. Here is the currently relevant portions of the code: [code] struct ACard { int Num; char Pic; }; void InitiateCard(ACard Card[]) { for (int i =0; i < 13; i++) { Card[i].Num = i; … | |
Hi u all!!! I have a website, dedicated to beauty products for women, ok? Sometime ago a friend of mine told me "hey! why don´t you send that info through MSN?". I liked that, so I downloaded an autoresponder code from here: [URL="http://nayyeri.net/blog/auto-responder-add-in-for-windows-live-messenger/"]http://nayyeri.net/blog/auto-responder-add-in-for-windows-live-messenger/[/URL] So I simply added this routine to … | |
Hi I will explain what I am trying to do: I have used MYPHP admin to create a database where user booking details will be stored in a table called bookings. Now I need to retrieve all the bookings for a specific date. For achieving this I have created two … | |
Hi i have one small application which includes clients registrations and contact details.Now i want voice recording which records the customerts conversation with the web site holder n tht conversation has to store in database. So i need a PHP application which supports the voice recordins. | |
Hi, I am trying to create a mortgage calculator per an assignment and have it working ALMOST perfectly. I just need to add a loop to make it pause when the screen is filled and wait for an ENTER until the loan balance is 0. Can someone help me? Here … | |
I am having trouble printing onto a JPanel. I am able to print any string that i want to. here my code: [CODE]import javax.swing.JFrame; import java.awt.BorderLayout; import javax.swing.JLabel; public class TestDraw { public static void main(String[] args) { final int WINDOW_WIDTH = 300, WINDOW_HEIGHT = 300; DrawPanel panel = new … | |
What will be the code for not overwriting the text file you make. [code]ofstream myfile; myfile.open (home/.test.txt); myfile << "test"; myfile.close(); [/code] Because the test.txt is needed to create only just once after you load the widget. I inserted that code to the mainWindow but whenever I loaded the mainWindow … | |
Im having this exception when i use the class vector: [code] vector <int64> p; dsdriver::EngineAdmin ea; p= ea.getEngineIds(); [/code] And EngineAdmin is: [code] class DSUTIL_EXPORT EngineAdmin { public: static vector<int64> getEngineIds() ; [/code] When i use p=ea.getengineIds(); its throw me an exception in xmemory: [code] void deallocate(pointer _Ptr, size_type) { … | |
help please, how to save a data between the time of what user input in the 2 textbox. 1 textbox is for intime and the 2 one is out time. for example if the user input 7:30 - 9:30 Am Intime all i want is this is the only time … | |
I have a very hard programming challenge and i need help... I have nothing so far, so im hoping somebod could help me build it... Im to write a program that uses a structure to store student name, student ID number, pointer to and array of test scores, average test … | |
This is the input that I am trying to load up the array with: 11 13 7 10 XXXXXXXXXXXXX X JX AX X X XXXX XXXXBX X X X SX X X X XXXX XXX X X X X X X X X XXXXXXXXX X X X X X XXXXXX … | |
Hi, I'm new to C++, and I made this program that makes either 1, or 2 pop up. And for 1, a text field is suppost to pop up to show you won, and if 2 pops up, it's suppost to say you lose. I got everything down (The unmber … | |
Hi! I was wondering if there is any way to just include a small part of a file? If I write include("c:\wamp\www\somefile.php"); then the whole file is included. I would like to only include the half of the file or a variable. Is this possible? Thanks in advance! | |
After this code executes [CODE] ptr = new myStuff; // some code ... delete ptr; [/CODE] the memory allocated is freed but ptr still contains the mem addr of the 1st byte of the previously allocated mem. Is there some history to this? Why didn't the C++ standard also have … | |
How can my VB.net application interact with windows modal dialog boxes? For example when you click an HTML <input type=file> the dialog that opens is a windows form that isn't in my application, so how can I manipulate it? | |
The problem seems pretty simple but I haven't figured it out yet. I'm using wxWidgets to make a gui and this function gets called when I press enter while in a text field. [code=c++] void Camera_Settings::on_exposure(wxCommandEvent &event) { wxString temp = exposure->GetValue(); char *value = (char *)temp.mb_str(); char *hex_string = … | |
Hey guys below is my full code of the program I am trying to run. I want to save the data automatically. It goes through many areas but the save area is not working for some reason. Errr...I have spent many hours and it is very basic code probably because … | |
It is a grading system, but its not calulating the grades [ICODE]#include<stdio.h> #include<conio.h> #include<string.h> #define max 2 void Cal_semester_Grade(char studname[][25],int gradeavg[][1],int examAvg[][1]); void Class_Grade(char studname[][25],char classname[5], int classgrd[][3],int gradeavg[][1], int Maxtestscr[][3],char subjectname[15],int classprectge[][3],int finalClassgrade[][1]); void Exam_Grade(char studname[][25], int examMarks[][2], int MaxExamTest[][2],int Examperctage[][2],int examAvg[][1],int finalExamgrade[][1],int paperweight[][2]); //void search_name(char); void Menu(); char … | |
hey can someone suggest the best way to get the list of files in a directory. i only need files no need directories. given a folder, i want to write a program that gets all the files in it. its part of a much bigger program. appreciate any help. many … | |
Hello, I am trying to add hyperlink to my mysql query result. I have a table called EastLondon which consist of the following: [code] (restaurant_id INT UNSIGNED PRIMARY KEY, restaurant_name VARCHAR(20), phone_number VARCHAR(20), picture varchar(8), website varchar(40)); [/code] I extract all these info into a table using php. What I … | |
I have a very hard programming challenge and i need help... I have nothing so far, so im hoping somebod could help me build it... Im to write a program that uses a structure to store student name, student ID number, pointer to and array of test scores, average test … | |
Hi guys, I just can't figure out how to traverse trough this heap. It's a 4-heap and I'm trying to implement a toString method for it. It should return a string and must be recursive. Like pre-order traversal. I'm lost with it. [CODE=java]public String toString(int index,String out) { int child … | |
I am writing a program that will reverse the order of ASCII code. The user input a character and output the reverse 7 bits of it. EX: 011001 to 100110. I am trying to understand the sll and srl instructions better and how they are used because they seem to … | |
Hi I am writing to a text file but end up having several duplicates in the text file, this is a basic program I am creating using PHP and HTML. How is it possible to fwrite only when record exists. Thnx [code]<?php $FirstName = $_POST['FirstName']; $LastName = $_POST['LastName']; $Email = … | |
first of all i am new here so hi everyone! I am looking for a program that can generate binary patterns like the ones shown below. i know there are generators out there but i cant seem to find any, been searching for hours:( i want to generate code like … |
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