How to Insert & Return a Row using a Function based on the Input parameter

Question

Hi Guys, Plz help me the following code i am converting from Sql Server to Oracle.
I want equivalent code in Oracle.
ALTER FUNCTION [dbo].[GetDateRange]
     @Period     VARCHAR(50)
RETURNS @DateRange TABLE(StartDate     DATETIME,EndDate DATETIME,[Name] NVARCHAR(500), [Description] Nvarchar(2000) )
AS
IF(LTRIM(RTRIM(@Period)) = 'LQ')
BEGIN
''''CALCULATION
          INSERT INTO @DateRange
                         StartDate,
                         EndDate,
[Name],
[description]
               SELECT     @StartDate,@EndDate,'Last Quarter',
'Last Quarter - '+ Cast(@StartDate as Nvarchar(11))+ ' to '+Cast(@EndDate as Nvarchar(11))
END
     RETURN
END
above Function i am using in another Procedure
select ----
FROM     dbo.SalesFact SF ,
               dbo.DateDimension DD,                    
               dbo.GetDateRange('LY') GDR
     WHERE     DD.DateKeyID = SF.BillDateKeyID AND
               DD.Date >= GDR.StartDate AND
               DD.Date < GDR.EndDate
Edited by: 801668 on Oct 11, 2010 10:26 PM

Answer 1

hi i'm sending again the following code
ALTER FUNCTION [dbo].[GetDateRange]
     @Period     VARCHAR(50)
RETURNS @DateRange TABLE
(StartDate     DATETIME,     EndDate     DATETIME,[Name] NVARCHAR(500), [Description] Nvarchar(2000) )
AS
BEGIN
DECLARE @ToDay          DATETIME,
@StartDate     DATETIME,
@EndDate     DATETIME
DECLARE
@V_Getdate DATETIME
,@V_Getdate_2 DATETIME
,@V_dateA datetime
,@V_dateB datetime
,@V_dateC datetime
,@V_dateD Datetime
,@StartFirstdayofquarter datetime
,@EndLastdayofthequarter datetime
,@quater int
,@FirstdayofPreviousyr Datetime
,@LastdayofPreviousyr Datetime
,@FirstdayofPreviousyr6MTD Datetime
,@TodayDayOfWeek INT
,@EndOfPrevWeek DateTime
,@StartOfPrevWeek DateTime
,@V_Date_1 datetime
,@V_P6MV1 datetime
,@V_P6MV2 Datetime
,@StartFirstdayofquarter_1 datetime
,@EndLastdayofthequarter_1 datetime
,@i int
,@CurrentRowNum int
,@CurrentQuarter int
,@V_Startdate datetime
,@V_Startdate2 datetime
,@V_enddate datetime
,@V_Quarter int
,@V_rownum int
SET @Period=LTRIM(RTRIM(@Period))
SET @V_Getdate = (SELECT CONVERT(DATETIME,(SELECT CONVERT(VARCHAR(10),(Select LastETLDate from Parameterconfig),101))))
--Where parameterconfig is a table
SET @V_Getdate_2=@V_Getdate
     IF(LTRIM(RTRIM(@Period)) = 'LQ')
     BEGIN
SET @ToDay = (SELECT CONVERT(DATETIME,CONVERT(VARCHAR(10),@V_Getdate,101) + ' 00:00:00.000'))--#Ch003
--If Today is in between 1st January to 31st March then return
--1st Oct of previous year as StartDate and 1st Jan of present year as EndDate
IF((DATEPART(MM,@ToDay) = 1) OR (DATEPART(MM,@ToDay) = 2) OR (DATEPART(MM,@ToDay) = 3 ))
BEGIN
SET @StartDate = (SELECTCONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,DATEADD(YYYY,-1,@ToDay))) +'-10-01 00:00:00.000'))
SET @EndDate = (SELECTCONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-01-01 00:00:00.000'))
     INSERT INTO @DateRange(StartDate,EndDate,[Name],[description]     )
     SELECT     @StartDate,@EndDate,'Last Quarter',
'Last Quarter - '+ Cast(@StartDate as Nvarchar(11))+ ' to '+Cast(@EndDate as Nvarchar(11))
END
     --If Today is in between 1st April to 30th June then return
     --1st Jan of present year as StartDate and 1st April of present year as EndDate
IF((DATEPART(MM,@ToDay) = 4) OR (DATEPART(MM,@ToDay) = 5) OR (DATEPART(MM,@ToDay) = 6 ))
BEGIN
SET @StartDate = (SELECT     CONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-01-01 00:00:00.000'))
SET @EndDate = (SELECT     CONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-04-01 00:00:00.000'))
     INSERT INTO @DateRange(StartDate,EndDate,[Name],[description]     )
SELECT     @StartDate,@EndDate,'Last Quarter ',
'Last Quarter - '+ Cast(@StartDate as Nvarchar(11))+' to '+Cast(@EndDate as Nvarchar(11))
END
--If Today is in between 1st July to 30th September then return
--1st April of present year as StartDate and 1st July of present year as EndDate
IF((DATEPART(MM,@ToDay) = 7) OR (DATEPART(MM,@ToDay) = 8) OR (DATEPART(MM,@ToDay) = 9 ))
BEGIN
SET @StartDate = (SELECT     CONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-04-01 00:00:00.000'))
SET @EndDate = (SELECT     CONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-07-01 00:00:00.000'))
INSERT INTO @DateRange(StartDate,EndDate,[Name],[description])
SELECT     @StartDate,@EndDate,'Last Quarter',
'Last Quarter - '+ Cast(@StartDate as Nvarchar(11))+' to '+Cast(@EndDate as Nvarchar(11))
END
          --If Today is in between 1st Oct to 31St Dec then return
          --1st July of present year as StartDate and 1st Oct of present year as EndDate
IF((DATEPART(MM,@ToDay) = 10 ) OR (DATEPART(MM,@ToDay) = 11) OR (DATEPART(MM,@ToDay) = 12 ))
BEGIN
SET @StartDate = (SELECT     CONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-07-01 00:00:00.000'))
SET @EndDate = (SELECT     CONVERT(DATETIME,CONVERT(VARCHAR(4),DATEPART(YYYY,@ToDay)) +
          '-10-01 00:00:00.000'))
INSERT INTO @DateRange(StartDate,EndDate,[Name],[description])
SELECT     @StartDate,@EndDate,'Last Quarter',
'Last Quarter - '+ Cast(@StartDate as Nvarchar(11))+' to '+Cast(@EndDate as Nvarchar(11))
END
END
RETURN
END
above function i'm using in another procedure. which acts as a virtual table. for joining purpose.