create a mysql record if it doesnt exist, else update it

Question

I would like to modify this MySQL query to insert the row only if it does not exist. Otherwise, I would like to update the existing row.

Answer 1

Yeah, use ON DUPLICATE KEY UPDATE

for that. Here is an example:

INSERT INTO  (, ) VALUES (, )
ON DUPLICATE KEY UPDATE  = 'update CONTENT';


important is the primary key (underlined in phpMyAdmin table).
    

             

                                                        
            
            

              
                
                0
              
                   
                
               讨论(0)
              
                                                  
              
              

                          
             
       
          
              
                                       

     查看其它4个回答


            
                         

                    



               
            

    发布评论:
    

         
                        
    
    
提交评论 
  
  

                    
                    

                    

                        

                        
                         加载中...
                        
                    
                
          
                              			
        
        
        

          

            
            

              
              

            
    


                                 
              
            
                          
    

        
         

                验证码
                

                  
                
                

                   看不清?
                
              
                                  

                    
   
                 
             
              
提交回复
            
          
        
      
       
      
    
    

          
 
     
 

        
热议问题