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MySQL > Table doesn't exist. But it does (or it should)
					I changed the datadir of a MySQL installation and all the bases moved correctly except for one. 
I can connect and  USE  the database.  SHOW TABLES  also returns me all the tables correctly, and the files of each table exists on the MySQL data directory.
                    
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							What are best practices for validating email addresses on iOS 2.0
					...                            ;  "]", or "\"
Yes, that means +, ', etc are all legit.   
    
    
        
            
            
                
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							How to convert An NSInteger to an int?
					... front of the NSInteger? For example, (int)myInteger whenever you want to call the integer form, so that you do not have to create a new variable.
                
– chandhooguy
                Dec 28 '14 at 22:05
            
        
    
    
        
            
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							Best way to assert for numpy.array equality?
					..._equal is more reliable.
update
A few versions ago numpy obtained assert_allclose which is now my favorite since it allows us to specify both absolute and relative error and doesn't require decimal rounding as the closeness criterion.
    
    
        
            
            
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							How to identify server IP address in PHP
					...   This is NOT the server address! This is the address the remote browser calls the server, which is under control of the remote user. Use the answer by John K instead
                
– Ariel
                Feb 12 '15 at 10:36
                        
                            
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							Using mixins vs components for code reuse in Facebook React
					...inning to use Facebook React in a Backbone project and so far it's going really well.  
However, I noticed some duplication creeping into my React code.
                    
                    
                        
                            
                                
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							Excel: last character/string match in a string
					...(2,1/(MID(A4,SEQUENCE(LEN(A4)),2)="YY")) | 4        |
Whilst this both allows us to no longer use an arbitrary replacement character and it allows overlapping patterns, the "downside" is the useage of an array.
Note: You can force the same behaviour in older Excel versions through either 
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							Why does volatile exist?
					...ed 16 bit value as a semaphore to know when the other guy was done. Essentially we did this:
void waitForSemaphore()
{
   volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
   while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the optimizer sees ...				
				
				
							Should I compile with /MD or /MT?
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By dynamically linking with /MD, 
you are exposed to system updates (for good or ill), 
your executable can be smaller (since it doesn't have the library embedded in it), and 
I believe that at very least the code segment of a DLL is...				
				
				
							JavaScript listener, “keypress” doesn't detect backspace?
					...s invoked only for character (printable) keys, KeyDown event is raised for all including nonprintable such as Control, Shift, Alt, BackSpace, etc.
UPDATE:  
  The keypress event is fired when a key is pressed down and that key normally produces a character value 
Reference.
    
    
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