Create Calendar Table in Power BI using DAX Function

 Calendar Table using Dax

Syntax:

CalendarTable = ADDCOLUMNS ( CALENDAR (DATE(2024, 1, 1), DATE(2024, 12, 31)), "Year", YEAR([Date]), "MonthNumber", MONTH([Date]), "MonthName", FORMAT([Date], "MMMM"), "Quarter", QUARTER([Date]), "DayOfWeek", WEEKDAY([Date]), "DayOfMonth", DAY([Date]), "WeekdayName", FORMAT([Date], "dddd"), "IsWeekend", IF( OR(WEEKDAY([Date]) = 1, WEEKDAY([Date]) = 7), TRUE(), FALSE()), "IsHoliday", IF( OR( MONTH([Date]) = 1 && DAY([Date]) = 1, MONTH([Date]) = 7 && DAY([Date]) = 4),

TRUE(), FALSE()) )

Explanation:

CALENDAR (DATE(2024, 1, 1), DATE(2024, 12, 31))

Creates a table with a single column containing dates from January 1, 2024, to December 31, 2024.

ADDCOLUMNS (

Adds new columns to the table created by the CALENDAR function.

"Year", YEAR([Date]),

Adds a column named "Year" that extracts the year from each date in the table.

"MonthNumber", MONTH([Date]),

Adds a column named "MonthNumber" that extracts the month number from each date.

"MonthName", FORMAT([Date], "MMMM"),

Adds a column named "MonthName" that formats the date to display the month name.

"Quarter", QUARTER([Date]),

Adds a column named "Quarter" that extracts the quarter from each date.

"DayOfWeek", WEEKDAY([Date]),

Adds a column named "DayOfWeek" that extracts the day of the week as a number (1 to 7).

"DayOfMonth", DAY([Date]),

Adds a column named "WeekdayName" that formats the date to display the weekday name.

"IsWeekend", IF( OR(WEEKDAY([Date]) = 1, WEEKDAY([Date]) = 7), TRUE(), FALSE()),

Adds a column named "IsWeekend" that checks if the day is a weekend (Saturday or Sunday) and returns TRUE or FALSE.

"IsHoliday", IF( OR( MONTH([Date]) = 1 && DAY([Date]) = 1, MONTH([Date]) = 7 && DAY([Date]) = 4),

TRUE(), FALSE())

Adds a column named "IsHoliday" that checks if the day is a holiday (January 1st or July 4th) and returns TRUE or FALSE.

This DAX code generates a comprehensive calendar table with various time-related columns that can be used for analytical purposes in tools like Power BI. You can customize it further based on your specific requirements and region-specific holidays.



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