Brug DATENAME og pak logikken ind i en funktion, ikke en lagret proc
declare @myTime as DateTime
set @myTime = GETDATE()
select @myTime
select DATENAME(day, @myTime) + SUBSTRING(UPPER(DATENAME(month, @myTime)), 0,4)
Returnerer "14OCT"
Prøv ikke at bruge nogen tegn-/strengbaserede operationer, hvis det er muligt, når du arbejder med datoer. De er numeriske (en float), og ydeevnen vil lide under disse datatypekonverteringer.
Grav disse praktiske konverteringer, jeg har kompileret gennem årene...
/* Common date functions */
--//This contains common date functions for MSSQL server
/*Getting Parts of a DateTime*/
--//gets the date only, 20x faster than using Convert/Cast to varchar
--//this has been especially useful for JOINS
SELECT (CAST(FLOOR(CAST(GETDATE() as FLOAT)) AS DateTime))
--//gets the time only (date portion is '1900-01-01' and is considered the "0 time" of dates in MSSQL, even with the datatype min value of 01/01/1753.
SELECT (GETDATE() - (CAST(FLOOR(CAST(GETDATE() as FLOAT)) AS DateTime)))
/*Relative Dates*/
--//These are all functions that will calculate a date relative to the current date and time
/*Current Day*/
--//now
SELECT (GETDATE())
--//midnight of today
SELECT (DATEADD(ms,-4,(DATEADD(dd,DATEDIFF(dd,0,GETDATE()) + 1,0))))
--//Current Hour
SELECT DATEADD(hh,DATEPART(hh,GETDATE()),CAST(FLOOR(CAST(GETDATE() AS FLOAT)) as DateTime))
--//Current Half-Hour - if its 9:36, this will show 9:30
SELECT DATEADD(mi,((DATEDIFF(mi,(CAST(FLOOR(CAST(GETDATE() as FLOAT)) as DateTime)), GETDATE())) / 30) * 30,(CAST(FLOOR(CAST(GETDATE() as FLOAT)) as DateTime)))
/*Yearly*/
--//first datetime of the current year
SELECT (DATEADD(yy,DATEDIFF(yy,0,GETDATE()),0))
--//last datetime of the current year
SELECT (DATEADD(ms,-4,(DATEADD(yy,DATEDIFF(yy,0,GETDATE()) + 1,0))))
/*Monthly*/
--//first datetime of current month
SELECT (DATEADD(mm,DATEDIFF(mm,0,GETDATE()),0))
--//last datetime of the current month
SELECT (DATEADD(ms,-4,DATEADD(mm,1,DATEADD(mm,DATEDIFF(mm,0,GETDATE()),0))))
--//first datetime of the previous month
SELECT (DATEADD(mm,DATEDIFF(mm,0,GETDATE()) -1,0))
--//last datetime of the previous month
SELECT (DATEADD(ms, -4,DATEADD(mm,DATEDIFF(mm,0,GETDATE()),0)))
/*Weekly*/
--//previous monday at 12AM
SELECT (DATEADD(wk,DATEDIFF(wk,0,GETDATE()) -1 ,0))
--//previous friday at 11:59:59 PM
SELECT (DATEADD(ms,-4,DATEADD(dd,5,DATEADD(wk,DATEDIFF(wk,0,GETDATE()) -1 ,0))))
/*Quarterly*/
--//first datetime of current quarter
SELECT (DATEADD(qq,DATEDIFF(qq,0,GETDATE()),0))
--//last datetime of current quarter
SELECT (DATEADD(ms,-4,DATEADD(qq,DATEDIFF(qq,0,GETDATE()) + 1,0)))