Can primary index be a CHAR in MySQL?
- by FFish
My primary indexes are unique reference numbers like 002345 and 000023.
If I format them as integers I loose my zero's. They need to be 6 digits.
Can I use CHAR? I don't need any auto increments.
Search Results
Search found 7500 results on 300 pages for 'const char'.
Page 22/300 | < Previous Page | 18 19 20 21 22 23 24 25 26 27 28 29 | Next Page >
-
-
Invalid length for a Base-64 char array.
- by Scott Bedwell
I'm getting the following error in my ASP.net web page: Invalid length for a Base-64 char array. This happens when a user activates an ajax request before the previous request completes. How can I prevent this error fro occurring?Read the article
-
storing in unsigned char array
- by javierkeung
Hello everyone, i got a question about unsigned char array. How can i store an integer in the array continually? thanks for your help!Read the article
-
Expecting a LexBuffer<char> but given a LexBuffer<byte> The type 'char' does not match the type 'by
- by user152518
Type mismatch. Expecting a LexBuffer but given a LexBuffer The type 'char' does not match the type 'byte' This is the error message that I am getting while using fslex. I have tried manually checking every single occurrence of lexbuf and its type. It's LexBuffer everywhere. But still the compiler is giving me the above error.…Read the article
-
BINDing an ASP.NET 2.0 FormView - CheckBox or RadioButton to Oracle CHAR(1) Y/N
- by Pete
Oracle 9i has not BOOLEAN data type. CheckBoxes in ASP.NET are BOOLEAN controls are they not? So using a CHAR(1) column with Y or N values in the Oracle table, how do I bind to a CheckBox or CheckBoxList or RadioButton or RadioButtonList control on an ASP.NET 2.0 web form? I'm using VB, 'specially since I'm a noobie.Read the article
-
Objective-C: initWithName:(char *)string
- by iWalter
How would you read this in English? My concern is with the pointer. Is that pointer associated with char or with string? Thanks in advance!Read the article
-
Iterating bits of a char
- by Hamza Yerlikaya
Assuming I have char "C" whose ascii code is 0110 0111, How can iterate over its bits? I would like to build a vector from these 1's and 0's....Read the article
-
Why we can't have "char" enum types
- by Praveen Sharma
Hi All, I want to know why we can't have "char" as underlying enum type. As we have byte,sbyte,int,uint,long,ulong,short,ushort as underlying enum type. Second what is the default underlying type of an enum?Read the article
-
casting size_t to int to declare size of char array
- by Brandon Hilton
I am trying to declare a size of a char array and I need to use the value of the variable that is declared as a size_t to declare that size. Is there anyway I can cast the size_t variable to an int so that I can do that?Read the article
-
how to use the function " gtk_moz_embed_set_comp_path (char *aPath);"
- by ganapati
Hi, How to use the function extern void gtk_moz_embed_set_comp_path (char *aPath); and what is the use of that?Read the article
-
Memory leaks detected using type char pointers in std::list
- by Dave18
why i'm getting the memory leak errors without allocating or adding any elements to list below. should i just ignore it? #define CRTDBG_MAP_ALLOC #include <crtdbg.h> #include <list> using std::list; int main() { list <char*> roots; _CrtDumpMemoryLeaks(); }Read the article
-
Direct boost serialization to char array
- by scooterman
Hi all, Boost serialization doc's assert that the way to serialize/deserialize items is using a binary/text archive with a stream on the underlying structure. This works fine if I wan't to use the serialized data as an std::string, but my intention is to convert it directly to a char* buffer. How can I achieve this without creating a temporary…Read the article
-
Java Optimization String vs Char Arrays
- by ThePinkPoo
In a program I am writing I am doing a lot of string manipulation. I am trying to increase performance and am wondering if using char arrays would show a decent performance increase. Any suggestions?Read the article
-
Error-invalid length for a base-64 char array
- by dmenaria
Hi , I have silverlight app that post some data to another web application ,the data to post is converted to base 64 using code byte[] byteArray = Encoding.UTF8.GetBytes(sDataToPost); sDataToPost = Convert.ToBase64String(byteArray); Another webapplication get the data using the code strText =…Read the article
-
Java: How to return single char after string
- by newSpringer
I have a file directory which could look like either C:\projects\lab3\test\test.java or C:\projects\assignment3\test\test.java But the "lab3" or "assignment3" can appear anywhere in the directory, it is not a set directory What i want is to check to see if the directory either contains "lab"…Read the article
-
perl + want to put uniq char as @ without backslash "\"
- by yael
I need to know if there is some way to replace any string as @ or * or ? or & without to put the "\" before it Example perl -pe 'next if /^#/; s/\@d\&/new_value/ if /param5/' test in this example need to replace the @d& with new_value but I need to put the "\" before @ or & can…Read the article
-
preg_replace(), removing string containing '+' char
- by Mikey1980
I am having an issue removing "%3Cbr+%2F%3E" from my string using the preg_replace function. My assumption is that the '+' char is being interpreted incorrectly. Here my code: $address = preg_replace('/%3Cbr+%2F%3E/', '', urlencode($address)); Thanks as always!Read the article
-
Program crash on deque from queue
- by SwedishGit
My first question asked here, so please excuse if I fail to include something... I'm working on a homework project, which basically consists of creating a "Jukebox" (importing/exporting albums from txt files, creating and "playing" a playlist, etc.). I've become stuck on one point: When "playing"…Read the article
-
Impossible to be const-correct when combining data and it's lock?
- by Graeme
I've been looking at ways to combine a piece of data which will be accessed by multiple threads alongside the lock provisioned for thread-safety. I think I've got to a point where I don't think its possible to do this whilst maintaining const-correctness. Take the following class for example: …Read the article
-
Is it ok to dynamic cast "this" as a return value?
- by Panayiotis Karabassis
This is more of a design question. I have a template class, and I want to add extra methods to it depending on the template type. To practice the DRY principle, I have come up with this pattern (definitions intentionally omitted): template <class T> class BaseVector: public…Read the article
-
Why operator= returns reference not const reference
- by outmind
The original question is related to overloading operator= and I like to share my findings as it was nontrivial for me to find them. I cannot imagine reasonable example to use (a=b) as lvalue. With the help of IRC and google I've found the next article: …Read the article
-
How to compare string with const char*?
- by arzeth
#include <stdlib.h> #include <stdio.h> #include <iostream> #include <string.h> using namespace std; int main() { string cmd; while(strcmp(cmd.c_str(),"exit")==0 && strcmp(cmd.c_str(),"\exit")==0) { …Read the article
-
How do I define constant values of UIColor?
- by mobibob
I want to do something like this, but I cannot get a cooperative syntax. static const UIColor *colorNavbar = [UIColor colorWithRed: 197.0/255.0 green: 169.0/255.0 blue: 140.0/255.0 alpha: 1.0]; I suppose that I could define macros, but they are ugly.Read the article
-
How to I define constant values of UIColor?
- by mobibob
I want to do something like this, but I cannot get a cooperative syntax. static const UIColor *colorNavbar = [UIColor colorWithRed: 197.0/255.0 green: 169.0/255.0 blue: 140.0/255.0 alpha: 1.0]; I suppose that I could define macros, but they are ugly.Read the article
-
How do I apply the for-each loop to every character in a String in Java?
- by oxinabox.ucc.asn.au
So I want to iterate for each character in a string. So I thought: for (char c : "xyz") but I get a compiler error: StackCharTester.java:20: foreach not applicable to expression type How can I do this?Read the article
