Problem
Calculate the number of weeks into the year a date is
Dates
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?
Solution
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:

Int(DayOfYear(Days(DayOfWeek(FirstDayOfYear([MyDate])))
        + [MyDate])/7+1)
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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:

  • If you want to create three separate Acme records (Acme-New York, Acme-Dallas and Acme-Portland) click the Conform link at the top of the column.
  • If the dissimilar entries are mistakes (say Acme only has one office in New York and the other locations are data-entry errors) go back into your table and correct the inconsistencies—in this case, changing all locations to New York. Then try the conversion again.

Read more about converting a column into a table.

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