Good puppies start long before breeding ever takes place. Both parents need long-term care -- what dog people call conditioning -- to produce the best offspring. This means regular veterinary care, screening for genetic problems, pre-breeding tests, and regular exercise and good nutrition.
A universally unique identifier (UUID) is an identifier standard used in software construction. A UUID is simply a 128-bit value. The meaning of each bit is defined by any of several variants. For human-readable display, many systems use a canonical format using hexadecimal text with inserted hyphen characters.
GUID Values in MySQL. The MySQL function to generate a GUID is UUID. It returns a value of type CHAR(36) : 32 characters (all valid hex digits) with four dashes for standard formatting.