how do you calculate the age (in months) using the date of birthday?

Kailin
Kailin Member
in Beast Mode

how do you calculate the age (in months) using the date of birthday?

Can I use this:

ROUND(DATEDIFF(INFANT'S DETAILS:\nDate of Birth,CURRENT_DATE()) / 365,1)*12

Best Answers

  • ColemenWilson
    ColemenWilson Coach
    edited September 7 Answer ✓

    This is what I would use:

    ROUND(DATEDIFF(CURRENT_DATE(),`INFANT'S DETAILS:\nDate of Birth`)/ 30.437)

    Note that I've also swapped the order of Infants details and Current date in the DATEDIFF() function to avoid a negative number.

    If I solved your problem, please "accept" my answer as the solution

  • marcel_luthi
    marcel_luthi Coach
    Answer ✓

    Another approach would be to use the PERIOD_DIFF function, something like:

    period_diff(date_format(CURRENT_DATE(), '%Y%m'),date_format(`INFANT'S DETAILS:\nDate of Birth`, '%Y%m'))

    I'd advise you to try both, put them side by side and then compare a few examples to what your expected number would be, so you can get the one that works closer to how you'd manually do so.

Answers

  • ColemenWilson
    ColemenWilson Coach
    edited September 7 Answer ✓

    This is what I would use:

    ROUND(DATEDIFF(CURRENT_DATE(),`INFANT'S DETAILS:\nDate of Birth`)/ 30.437)

    Note that I've also swapped the order of Infants details and Current date in the DATEDIFF() function to avoid a negative number.

    If I solved your problem, please "accept" my answer as the solution

  • marcel_luthi
    marcel_luthi Coach
    Answer ✓

    Another approach would be to use the PERIOD_DIFF function, something like:

    period_diff(date_format(CURRENT_DATE(), '%Y%m'),date_format(`INFANT'S DETAILS:\nDate of Birth`, '%Y%m'))

    I'd advise you to try both, put them side by side and then compare a few examples to what your expected number would be, so you can get the one that works closer to how you'd manually do so.

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