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Reena is working with functions of MySQL. Explain her following:

i. What is the purpose of now () function? 

ii. How many parameters does it accept? 

iii. What is the general format of its return type?

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i. It returns the current date and time. 

ii. None 

iii. The return type for NOW() function is either in ‘YYYYMM-DD HH:MM:SS’ format or YYYY-MM-DD HH:MM:SS. uuuuuu format, depending on whether the function is used in a string or numeric context.

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