month, data type
month is a primitive data type, representing months as the combination of a year and a month number within that year, such as
2001-01 (the earliest month representable in Envision) or
read "Promo.ion" as Promotions with StartWeek : month EndWeek : month
Date arithmetic is supported by the
monthA + 1 is the month right after
monthA - monthB is the number of months between
month(y: number, m: number) 🡒 month, const pure function
Returns the month number
m in year
y ; will raise an error if the combination is incorrect.
show scalar "" with month(2020, 10) // 2020-10
month(d: date) 🡒 month, const pure function
Returns the month associated to the specified date.
show summary "" a1a3 with month(date(2019, 12, 28)) month(date(2019, 12, 30)) month(date(2020, 1, 1))
Month, built-in table
Month is automatically defined if the
date dimension is used in a script. It contains, at any point in the script, the set of months that have at least one of their days appear in table
Day. In effect, this is equivalent to the definition:
table Month[month] = by month(date)
However, unlike a normal
by table, the
Month table is automatically updated every time the
Day table is filtered or expanded.
month, primary dimension
The primary dimension of table
Month is named
month, and it is of type
If a table has dimension
date (either as primary or non-primary dimension), it automatically receives
month as a non-primary dimension as well.