Дальнейшее развитие: приведенный ниже код удовлетворяет тому, что требовалось в предыдущих комментариях [если вы следите за историей] :), мой новый вопрос прямо ниже озадачивает меня.
Вопрос : Я хочучтобы 'Week_Of_Year' корректировался каждое воскресенье, код ниже делает это каждый понедельник .. Я пробовал 1 и 0, но через alter session для Snowflake, но не повезло! Есть идеи, как начать новую неделю по воскресеньям, а не по понедельникам (как сейчас)?
т.е. желаемый результат для Date: 1/2/2005, чтобы отразить Week_Of_Year как 2, а не 1. alter session set week_of_year_policy = 1;vs alter session set week_of_year_policy = 0;
РАБОЧИЙ КОД
create or replace temporary table test_temptable
(
DATE_ID SMALLINT NOT NULL
,FULL_DATE DATE NOT NULL
,DATE Varchar(10) NOT NULL
,YEAR SMALLINT NOT NULL
,WEEK_OF_YEAR SMALLINT NOT NULL
,DAY_OF_YEAR SMALLINT NOT NULL
,QTR_NUMBER SMALLINT NOT NULL
,DAY_OF_QUARTER SMALLINT NOT NULL
,MONTH_OF_YEAR SMALLINT NOT NULL
,MONTH_NAME CHAR(3) NOT NULL --need to have full month name, if it comes to it maybe do if logic
,DAY_OF_MONTH SMALLINT NOT NULL
,DAY_OF_WEEK VARCHAR(9) NOT NULL
,DAY_NAME VARCHAR(12) NOT NULL
,DAY_IS_WEEKDAY boolean NOT Null
,DAY_IS_LAST_OF_MONTH boolean NOT Null
,DAY_OF_WEEK_IN_MONTH SMALLINT NOT NULL
,HOLIDAYUSA VARCHAR(80) ----left out NOT NULL on Purpose
--- ,DAY_IS_HOLIDAY boolean NOT NULL
)
AS
WITH MY_DATES AS (
SELECT DATEADD(DAY, SEQ4(), '2005-01-01') AS Full_DATE
,(seq8()+ 1) AS date_id
,DATE_TRUNC('QUARTER',Full_DATE) as Q
,DATEDIFF('day',Q, Full_DATE) as Day_of_Quarter
/*logic to support Easter Day calculation */
,Full_DATE as SinCurDay
,MONTH(Full_Date) as inCurMonth
,YEAR(Full_Date) as inCurYear
,FLOOR(inCurYear/100) as inCurCent
,inCurYear%19 as inYear
,FLOOR((inCurCent-17)/25) as inYearTmp
,(inCurCent-FLOOR(inCurCent/4)-FLOOR((inCurCent-inYearTmp)/3)+(19*inYear)+15)%30 as inTemp2a
,inTemp2a-FLOOR(inTemp2a/28)*(1 - FLOOR(inTemp2a/28)*FLOOR(29/(inTemp2a+1))*FLOOR((21-inYear)/11)) as inTemp2b
,(inCurYear+FLOOR(inCurYear/4)+inTemp2b+2-inCurCent+FLOOR(inCurCent/4))%7 as inTemp3
,inTemp2b-inTemp3 as inTemp4
,3+FLOOR((inTemp4+40)/44) as inEastMontha
,inTemp4+28-31*FLOOR(inEastMontha/4) as inEastDay
,inEastMontha /*- 1*/ as inEastMonthb
,Date_from_parts(inCurYear,inEastMonthb, inEastDay) as EasterDay
/*End Easter Day Logic */
/*Day of Week in Month*/
/* CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 End as Day_In_Month
*/
FROM TABLE(GENERATOR(ROWCOUNT=>365))
)
SELECT date_id
,Full_Date
,to_varchar(Full_Date, 'mm/dd/yyyy')
,YEAR(Full_Date)
,WEEKOFYEAR(Full_Date)
,DAYOFYEAR(Full_Date)
,QUARTER(Full_Date)
,Day_Of_Quarter + 1
,MONTH(Full_Date)
,MONTHNAME(Full_Date)
,DAY(Full_Date)
,DAYOFWEEK(Full_Date) + 1
,DAYNAME(Full_Date)
/*Weekend boolean */
,CASE
WHEN DAYOFWEEK(Full_date) + 1 = 7 THEN FALSE
WHEN DAYOFWEEK(Full_date) + 1 = 1 THEN FALSE
ELSE TRUE END
/*Last Day Of Month Boolean*/
,CASE
WHEN Full_Date = last_day(Full_Date) THEN True
ELSE FALSE END
/*Week in Month*/
---,CAST(Round((day(Full_Date) +6)/7,0) as VARCHAR)
,CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 End
/*HolidayUSA Logic */
,CASE
WHEN MONTH(Full_Date) = 10 AND DAY(Full_Date) = 31 THEN 'Halloween'
/*ThanksGiving*/
WHEN MONTH(Full_Date) = 11 AND DAYOFWEEK(Full_Date) + 1 = 5 AND
CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 End = 4
THEN 'Thanksgiving Day' -- should I add ()
WHEN MONTH(Full_Date) = 11 AND DAYOFWEEK(Full_Date) + 1 = 6 AND
CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 End = 4
THEN 'Black Friday' -- should I add ()
WHEN MONTH(Full_Date) = 12 AND DAY(Full_Date) = 25 THEN 'Christmas Day'
WHEN MONTH(Full_Date) = 7 AND DAY(Full_Date) = 4 THEN 'Independence Day'
WHEN MONTH(Full_Date) = 12 AND DAY(Full_Date) = 31 THEN 'New Years Eve'
WHEN MONTH(Full_Date) = 1 AND DAY(Full_Date) = 1 THEN 'New Years Day'
WHEN MONTH(Full_Date) = 5 AND DAYOFWEEK(Full_Date)+ 1 = 2 AND Day(Full_Date) > '24' then 'Memorial Day'
WHEN MONTH(Full_Date) = 9 AND DAYOFWEEK(Full_Date) + 1 = 2 AND Day(Full_Date) < '8'THEN 'Labor Day'
/*Martin Luther King Jr Day */
WHEN MONTH(Full_Date) = 1 AND DAYOFWEEK(Full_Date) + 1 = 2 AND
CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 End
= 3 THEN 'Martin Luther King Jr Day'
/*Presidents Day*/
WHEN MONTH(Full_Date) = 2 AND DAYOFWEEK(Full_Date) + 1 = 2 AND
CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 END
= 3 THEN 'Presidents Day'
WHEN MONTH(Full_Date) = 11 AND DAY(Full_Date) = 11 THEN 'Veterans Day'
/*Mothers Day */
WHEN MONTH(Full_Date) = 5 AND DAYOFWEEK(Full_Date) + 1 = 1 AND
CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 END
= 2 THEN 'Mothers Day'
/*Fathers Day */
WHEN MONTH(Full_Date) = 6 AND DAYOFWEEK(Full_Date) + 1 = 1 AND
CASE
WHEN Day(Full_Date) < 8 THEN 1
WHEN Day(Full_Date) BETWEEN 7 AND 14 then 2
WHEN Day(Full_Date) BETWEEN 14 AND 21 then 3
WHEN Day(Full_Date) BETWEEN 21 AND 28 then 4
ELSE 5 END
= 3 THEN 'Fathers Day'
WHEN MONTH(Full_Date) = 2 AND DAY(Full_Date) = 14 THEN 'Valentines Day'
WHEN Full_Date = EasterDay THEN 'Easter Day'
WHEN Full_Date = EasterDay - 2 THEN 'Good Friday'
ELSE NULL END
--- ,CASE
--- WHEN HOLIDAYUSA is not NULL THEN TRUE Else False
--- END
FROM MY_DATES
Order By Full_Date;
Развитый вопрос : Пожалуйста, просмотрите обновленный код, куда я перевел логику T-SQLРассчитать Пасху в то, что Снежинка могла понять. Единственная проблема заключается в том, что в 2005 году я ухожу на один день (код ниже возвращает 28 марта 2005 года к Пасхе, но это 27 марта 2008 года).
Вопрос: Может ли кто-нибудь помочь мне понять, почему нижняя строка настолько близка, но неправильна, я пробовал так много вариаций rtrim, RIGHT и других манипуляций со значениями, которые питают дату, думая, что она имеет отношение кокругление вниз, но все, что делает возвращение пасхи, датируются еще дальше. Ниже мой самый близкий для 20-летнего промежутка, все в пределах приблизительно 1-5 дней фактического.
Строка, вызывающая ошибку: date_from_parts(YR, '0' + rtrim(EasterMonth),'0' + rtrim(EasterDay)) AS test6
Easter Logic
(24 + 19 * (YR % 19)) % 30 AS EpactCalc,
EpactCalc - (EpactCalc / 28) AS PaschalDaysCalc,
PaschalDaysCalc - ((YR + YR / 4 + PaschalDaysCalc - 13) % 7) AS NumOfDaysToSunday,
3 + (NumOfDaysToSunday + 40) / 44 AS EasterMonth,
NumOfDaysToSunday + 28 - (31 * (EasterMonth / 4)) AS EasterDay, ---EasterMonth + RTRIM(YR) as test6
---to_date_from_parts(YR,(("0" + EasterMonth).substr(-2)), (("0" + EasterDay).substr(-2)) as test6
date_from_parts(YR, '0' + rtrim(EasterMonth),'0' + rtrim(EasterDay)) AS test6
Полный сценарий:
CREATE OR REPLACE
TEMPORARY TABLE .test_temptable (Date_Id SMALLINT NOT NULL ,Full_Date DATE NOT NULL ,Date Varchar(10) NOT NULL ,YEAR SMALLINT NOT NULL ,WEEK_OF_YEAR SMALLINT NOT NULL ,DAY_OF_YEAR SMALLINT NOT NULL ,QTR_Number SMALLINT NOT NULL ,Day_Of_Quarter SMALLINT NOT NULL,MONTH_OF_YEAR SMALLINT NOT NULL ,MONTH_NAME CHAR(3) NOT NULL --need to have full month name, if it comes to it maybe do if logic
,DAY_OF_MONTH SMALLINT NOT NULL ,DAY_OF_WEEK VARCHAR(9) NOT NULL ,DAY_NAME VARCHAR(12) NOT NULL ,DAY_IS_WEEKDAY boolean NOT NULL,DAY_IS_LAST_OF_MONTH boolean NOT NULL ,DAY_OF_WEEK_IN_MONTH SMALLINT NOT NULL ,HOLIDAYUSA VARCHAR(80) ----left out NOT NULL on Purpose
,test1 smallint NOT NULL,test2 smallint NOT NULL ,test3 smallint NOT NULL ,test4 smallint NOT NULL,test5 smallint NOT NULL ,test6 DATE NOT NULL) AS WITH CTE_MY_DATE AS
(---Returns a sequence of monotonically increasing integers, with wrap-around. Wrap-around occurs after the largest representable integer of the integer width (1, 2, 4, or 8 byte)..??I'd like to understand this a tad bit better.Is SEQ4 for float?
SELECT DATEADD(DAY, SEQ4(), '2005-01-01') AS Full_DATE,
YEAR(Full_Date) AS YR,
(seq8()+ 1) AS date_id,
DATE_TRUNC('QUARTER',Full_DATE) AS q,
DATEDIFF('day',q, Full_DATE) AS Day_of_Quarter,
(24 + 19 * (YR % 19)) % 30 AS EpactCalc,
EpactCalc - (EpactCalc / 28) AS PaschalDaysCalc,
PaschalDaysCalc - ((YR + YR / 4 + PaschalDaysCalc - 13) % 7) AS NumOfDaysToSunday,
3 + (NumOfDaysToSunday + 40) / 44 AS EasterMonth,
NumOfDaysToSunday + 28 - (31 * (EasterMonth / 4)) AS EasterDay, ---EasterMonth + RTRIM(YR) as test6
---to_date_from_parts(YR,(("0" + EasterMonth).substr(-2)), (("0" + EasterDay).substr(-2)) as test6
date_from_parts(YR, '0' + rtrim(EasterMonth),'0' + rtrim(EasterDay)) AS test6
FROM TABLE(GENERATOR(ROWCOUNT=>9125))
)
SELECT date_id ,
Full_Date ,
to_varchar(Full_Date, 'mm/dd/yyyy') ,
YEAR(Full_Date) ,
WEEKOFYEAR(Full_Date) ,
DAYOFYEAR(Full_Date) ,
QUARTER(Full_Date) ,
Day_Of_Quarter + 1 ,
MONTH(Full_Date) ,
MONTHNAME(Full_Date) ,
DAY(Full_Date) ,
DAYOFWEEK(Full_Date) + 1 ,
DAYNAME(Full_Date) ---calculates if it is on weekend or not
,
CASE
WHEN DAYOFWEEK(Full_date) = 7 THEN FALSE
WHEN DAYOFWEEK(Full_date) = 1 THEN FALSE
ELSE TRUE
END ----calculates if last day of month
,
CASE
WHEN Full_Date = last_day(Full_Date) THEN TRUE
ELSE FALSE
END,
CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) -- this is what week you are in in the month, double check that what it ought to be
--- calculates holidays, is Thxgiving always in the fifth week?,
,
CASE
WHEN MONTH(Full_Date) = 10
AND DAY(Full_Date) = 31 THEN 'Halloween'
WHEN MONTH(Full_Date) = 11
AND DAYOFWEEK(Full_Date) + 1 = 4
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 5 THEN 'Thanksgiving Day'
WHEN MONTH(Full_Date) = 12
AND DAY(Full_Date) = 25 THEN 'Christmas Day'
WHEN MONTH(Full_Date) = 7
AND DAY(Full_Date) = 4 THEN 'Independence Day' --adding
WHEN MONTH(Full_Date) = 12
AND DAY(Full_Date) = 31 THEN 'New Years Eve'
WHEN MONTH(Full_Date) = 1
AND DAY(Full_Date) = 1 THEN 'New Years Day' ---memorial day attempt
WHEN MONTH(Full_Date) = 5
AND DAYOFWEEK(Full_Date)+ 1 = 2
AND Day(Full_Date) > '24' THEN 'Memorial Day' ---labor day
WHEN MONTH(Full_Date) = 9
AND DAYOFWEEK(Full_Date) + 1 = 2
AND Day(Full_Date) < '8'THEN 'Labor Day'
WHEN MONTH(Full_Date) = 1
AND DAYOFWEEK(Full_Date) = 2
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 3 THEN 'Martin Luther King Jr Day'
WHEN MONTH(Full_Date) = 2
AND DAYOFWEEK(Full_Date) = 2
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 3 THEN 'Presidents Day'
WHEN MONTH(Full_Date) = 11
AND DAY(Full_Date) = 11 THEN 'Veterans Day' ---added Mother's Day
WHEN MONTH(Full_Date) = 5
AND DAYOFWEEK(Full_Date) + 1 = 1
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 2 THEN 'Mothers Day'
WHEN MONTH(Full_Date) = 6
AND DAYOFWEEK(Full_Date) + 1 = 1
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 3 THEN 'Fathers Day'
WHEN MONTH(Full_Date) = 2
AND DAY(Full_Date) = 14 THEN 'Valentines Day' ---easter
---good friday
ELSE NULL
END ,
EpactCalc ,
PaschalDaysCalc ,
NumOfDaysToSunday ,
EasterMonth ,
EasterDay ,
test6
FROM CTE_MY_DATE;
Старый вопрос: У меня есть этот прекрасный кусок кода для пользователей снежинок, который мне нужно немного помочь закончить. Я специально хочу использовать второй кусок кода, который был написан для SqlServer, который будет использоваться в Snowflakes env и интегрирован в мой скрипт ниже (первый кусок кода).
В частности: a) «Как интегрировать функцию в запрос, подобный этому», как в Совете, где разместить код внутри моего скрипта выше, потому что у меня возникают проблемы с пониманием того, как интегрировать функцию в оператор выбораб) «Есть ли что-то ослепительное в этом запросе, которое сделало бы его выполнение в Snowflake уникально трудным?» Я попытался запустить SQLServer «пасхальную дату» в одиночку внутри снежинки и изменил переменные в соответствии с требованиями к снежинкам (т. е. вывести @) итогда я получил ошибку unexpected 'BEGIN'.
CREATE OR REPLACE
TEMPORARY TABLE test_temptable (Date_Id SMALLINT NOT NULL ,Full_Date DATE NOT NULL ,Date Varchar(10) NOT NULL ,YEAR SMALLINT NOT NULL ,WEEK_OF_YEAR SMALLINT NOT NULL ,DAY_OF_YEAR SMALLINT NOT NULL ,QTR_Number SMALLINT NOT NULL ,Day_Of_Quarter SMALLINT NOT NULL,MONTH_OF_YEAR SMALLINT NOT NULL ,MONTH_NAME CHAR(3) NOT NULL
,DAY_OF_MONTH SMALLINT NOT NULL ,DAY_OF_WEEK VARCHAR(9) NOT NULL ,DAY_NAME VARCHAR(12) NOT NULL ,DAY_IS_WEEKDAY boolean NOT NULL,DAY_IS_LAST_OF_MONTH boolean NOT NULL ,DAY_OF_WEEK_IN_MONTH SMALLINT NOT NULL ,HOLIDAYUSA VARCHAR(80)
(
SELECT DATEADD(DAY, SEQ4(), '2005-01-01') AS Full_DATE,
(seq8()+ 1) AS date_id,
DATE_TRUNC('QUARTER',Full_DATE) AS q,
DATEDIFF('day',q, Full_DATE) AS Day_of_Quarter
FROM TABLE(GENERATOR(ROWCOUNT=>366))
)
SELECT date_id ,
Full_Date ,
to_varchar(Full_Date, 'mm/dd/yyyy') ,
YEAR(Full_Date) ,
WEEKOFYEAR(Full_Date) ,
DAYOFYEAR(Full_Date) ,
QUARTER(Full_Date) ,
Day_Of_Quarter + 1 ,
MONTH(Full_Date) ,
MONTHNAME(Full_Date) ,
DAY(Full_Date) ,
DAYOFWEEK(Full_Date) + 1 ,
DAYNAME(Full_Date)
,
CASE
WHEN DAYOFWEEK(Full_date) = 7 THEN FALSE
WHEN DAYOFWEEK(Full_date) = 1 THEN FALSE
ELSE TRUE
END
,
CASE
WHEN Full_Date = last_day(Full_Date) THEN TRUE
ELSE FALSE
END,
CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR)
,
CASE
WHEN MONTH(Full_Date) = 10
AND DAY(Full_Date) = 31 THEN 'Halloween'
WHEN MONTH(Full_Date) = 11
AND DAYOFWEEK(Full_Date) + 1 = 4
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 5 THEN 'Thanksgiving Day'
WHEN MONTH(Full_Date) = 12
AND DAY(Full_Date) = 25 THEN 'Christmas Day'
WHEN MONTH(Full_Date) = 7
AND DAY(Full_Date) = 4 THEN 'Independence Day' --adding
WHEN MONTH(Full_Date) = 12
AND DAY(Full_Date) = 31 THEN 'New Years Eve'
WHEN MONTH(Full_Date) = 1
AND DAY(Full_Date) = 1 THEN 'New Years Day' ---memorial day attempt
WHEN MONTH(Full_Date) = 5
AND DAYOFWEEK(Full_Date)+ 1 = 2
AND Day(Full_Date) > '24' THEN 'Memorial Day' ---labor day
WHEN MONTH(Full_Date) = 9
AND DAYOFWEEK(Full_Date) + 1 = 2
AND Day(Full_Date) < '8'THEN 'Labor Day'
WHEN MONTH(Full_Date) = 1
AND DAYOFWEEK(Full_Date) = 2
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 3 THEN 'Martin Luther King Jr Day'
WHEN MONTH(Full_Date) = 2
AND DAYOFWEEK(Full_Date) = 2
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 3 THEN 'Presidents Day'
WHEN MONTH(Full_Date) = 11
AND DAY(Full_Date) = 11 THEN 'Veterans Day' ---added Mother's Day
WHEN MONTH(Full_Date) = 5
AND DAYOFWEEK(Full_Date) + 1 = 1
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 2 THEN 'Mothers Day'
WHEN MONTH(Full_Date) = 6
AND DAYOFWEEK(Full_Date) + 1 = 1
AND CAST(Round((day(Full_Date) +6)/7,0) AS VARCHAR) = 3 THEN 'Fathers Day'
WHEN MONTH(Full_Date) = 2
AND DAY(Full_Date) = 14 THEN 'Valentines Day' ---easter
---good friday
ELSE NULL
END
FROM CTE_MY_DATE;
Ниже приведен код SQLServer, мне нужна помощь для ввода вышеуказанного !! (спасибо Функция возврата даты Пасхи за данный год )
CREATE FUNCTION dbo.GetEasterSunday
( @Y INT )
RETURNS SMALLDATETIME
AS
BEGIN
DECLARE @EpactCalc INT,
@PaschalDaysCalc INT,
@NumOfDaysToSunday INT,
@EasterMonth INT,
@EasterDay INT
SET @EpactCalc = (24 + 19 * (@Y % 19)) % 30
SET @PaschalDaysCalc = @EpactCalc - (@EpactCalc / 28)
SET @NumOfDaysToSunday = @PaschalDaysCalc - (
(@Y + @Y / 4 + @PaschalDaysCalc - 13) % 7
)
SET @EasterMonth = 3 + (@NumOfDaysToSunday + 40) / 44
SET @EasterDay = @NumOfDaysToSunday + 28 - (
31 * (@EasterMonth / 4)
)
RETURN
(
SELECT CONVERT
( SMALLDATETIME,
RTRIM(@Y)
+ RIGHT('0'+RTRIM(@EasterMonth), 2)
+ RIGHT('0'+RTRIM(@EasterDay), 2)
)
)
END
GO