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Calculate the number of weeks into the year a date is In Excel I can use the WeekNum function to calculate how many weeks into the year a particular date is. How do I do this in QuickBase? Dates Int(DayofYear([datefield])/7+1) 
Find the day of the year that the date field is (in other words how many days into the year the date is). Then divide by seven to get the number of weeks into the year. Add one. Then show the integer only (in other words, leave off any fractional values that follow the decimal point). Numeric There is no week 0, so the first week is 1. That's why you add 1.

This formulas returns the "Absolute Week Number" which counts weeks starting from January 1st, no matter what day of the week it is. In other words, Jan 1st through 7th is always week one. If Jan 1st is a Tuesday, than each week of the year will be Tuesday through Monday and tallied accordingly.
If you'd like to calculate the week number, but specify that each week begin on a Sunday (in other words, week one always ends on the first Saturday of January and following weeks are tallied based on that premise) try this formula instead:

        + [MyDate])/7+1)
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Calculate a date 1 year ago Return a date that's exactly one year before the value in an existing date field (named Date). Dates AdjustYear([Date],-1) Take the value in the Date field and subract one from the year. Date Note that you can use the AdjustYear() function to go forward in time too.   More on this solution...
Calculate the number of months until a payoff date   Dates ((Year([Payoff Date]) - Year(Today()) )* 12) + (Month([Payoff Date]) - Month(Today()) ) Take this year (that today's date occurs in) and subtract it from the year listed in the Payoff Date field. Then multiply that number of years by 12 (to get months). Take that number of months and add it to the number of months that results from subtracting this month from the month listed in the Payoff date field. Numeric You're really calculating the number of months in two steps. On the left side of the plus sign, you're figuring out how many years until the payoff date and converting that into months. On the right side of the plus sign, you're figuring out the difference in months. The plus sign then adds those figures together.   More on this solution...

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When you bring additional fields into a conversion, Quick Base often finds inconsistencies. For example, say you're converting your Companies column into its own table. One company, Acme Corporation, has offices in New York, Dallas and Portland. So, when you add the City column to the conversion, Quick Base finds three different locations for Acme. A single value in the column you're converting can only match one value in any additional field. Quick Base needs you to clean up the extra cities before it can create your new table. To do so, you have one of two choices:

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