|  | What are the common MySQL functions Below are the four main common MySQL functions
 (1)DATEDIFF(X,Y):-Method to get difference between two dates.
 (2)CONCATE(X,Y):-Method to concatenates two string values creating single string output.
 (3)CURRDATEO:-Method to for returning the current date or time.
 (4)NOWO:-Method for returning current date and time as single value.
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