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## mysq_uuid_v4.md

      
        
          
            
              
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                c-gross
                / mysq_uuid_v4.md
            
            
              Created
              October 17, 2023 14:31
                — forked from odan/mysq_uuid_v4.md
            
              
                Generating UUID v4 in MySQL
              
          
        
      
        
  
      
    Generating UUID v4 in MySQL

SELECT
  LOWER(
    CONCAT(
      # 1th and 2nd block are made of 6 random bytes
      HEX(RANDOM_BYTES(4)),
      '-',
 HEX(RANDOM_BYTES(2)),