= 0 DECLARE @CurrentDate DATE = @StartDate WHILE @CurrentDate <= @EndDate BEGIN IF DATEPART(WEEKDAY, @CurrentDate) IN (1, 7) -- 1=Sunday, 7=Saturday SET @WeekendDays = @WeekendDays + 1 SET @CurrentDate = DATEADD
like calculating the number of days between a date and today and getting the date difference between two columns. Additionally, we’ve touched on the SELECT DATEDIFF, DATEADD, and the equivalents in Snowflake, MySQL, and PostgreSQL.
Returns the difference in days only. PostgreSQL PostgreSQL does not have a DATEDIFF() function but provides similar functionality through: The AGE() function: SELECT AGE(enddate, startdate); Powered By Direct subtraction of date values: SELECT enddate - startdate; Powered By Parameter Wha...
In MS SQL Server, the function DATEDIFF is used to calculate the time interval between two date values and return it as an integer.
{ year: "$promotionEvents.promotionalDates.endDate.Year", month: "$promotionEvents.promotionalDates.endDate.Month", day: "$promotionEvents.promotionalDates.endDate.Day" } }, durationInDays: { $dateDiff: { startDate: { $dateFromParts: { year: "$promotionEvents.promotionalDates.startDate....
PostgreSQL-日期的天数差异 考虑使用 SQL Server 函数来计算两天之间的日期差: SQL Server: --DifferencebetweenDec29,201123:00andDec31,201101:00indaysSELECTDATEDIFF(day,'2011-12-29 23:00:00','2011-12-31 01:00:00');--Result:2 请注意,DATEDIFF 返回了 2 天,尽管 datetime 值之间只有 1 天 2 小...
SSRS ODBC (PostgreSQL) Parameter name SSRS One Row per page? SSRS Only Display One Row SSRS Operation is not valid due to the current state of the object SSRS option to make capital first letter and rest small letters of a string SSRS out of memory exception SSRS page break when export ...
PostgreSQL: EXTRACT(unit FROM age(end_date, start_date)) Oracle Database: end_date - start_date IBM Db2: DAYS(end_date) - DAYS(start_date) SQLite: The function is not standardized, but you can perform similar calculations using date and time functions. Refer to the documentation of your...
PostgreSQL provides a datediff function to users. The datediff means we can return the difference between two dates based on their specified interval. The datediff Function plays an important role in the database management system because datediff functions as a calendar and is very helpful to users...
Note that we cannot use the minus (-) operator in PostgreSQL as it always returns the difference in days so we cannot extract the YEAR part: PostgreSQL: -- Minus operator returns timestamp difference in days SELECT '2024-01-01'::TIMESTAMP - '2022-10-31'::TIMESTAMP; /* 427 days ...