Question

我希望在sql的帮助下创建Thu, 31 October 2013之类的日期。我怎么浏览了很多文章并找到了这个article。在本文中，我发现一个函数可以生成具有特定格式的字符串。

供参考我包括此功能。

CREATE FUNCTION dbo.fnFormatDate (@Datetime DATETIME, @FormatMask VARCHAR(32))
RETURNS VARCHAR(32)
AS
BEGIN
    DECLARE @StringDate VARCHAR(32)
    SET @StringDate = @FormatMask
    IF (CHARINDEX (‘YYYY’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘YYYY’,
                         DATENAME(YY, @Datetime))
    IF (CHARINDEX (‘YY’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘YY’,
                         RIGHT(DATENAME(YY, @Datetime),2))
    IF (CHARINDEX (‘Month’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘Month’,
                         DATENAME(MM, @Datetime))
    IF (CHARINDEX (‘MON’,@StringDate COLLATE SQL_Latin1_General_CP1_CS_AS)>0)
       SET @StringDate = REPLACE(@StringDate, ‘MON’,
                         LEFT(UPPER(DATENAME(MM, @Datetime)),3))
    IF (CHARINDEX (‘Mon’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘Mon’,
                                     LEFT(DATENAME(MM, @Datetime),3))
    IF (CHARINDEX (‘MM’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘MM’,
                  RIGHT(’0′+CONVERT(VARCHAR,DATEPART(MM, @Datetime)),2))
    IF (CHARINDEX (‘M’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘M’,
                         CONVERT(VARCHAR,DATEPART(MM, @Datetime)))
    IF (CHARINDEX (‘DD’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘DD’,
                         RIGHT(’0′+DATENAME(DD, @Datetime),2))
    IF (CHARINDEX (‘D’,@StringDate) > 0)
       SET @StringDate = REPLACE(@StringDate, ‘D’,
                                     DATENAME(DD, @Datetime))   
RETURN @StringDate
END
GO

– Microsoft SQL Server date format function test
– MSSQL formatting dates
SELECT dbo.fnFormatDate (getdate(), ‘MM/DD/YYYY’)           – 01/03/2012
SELECT dbo.fnFormatDate (getdate(), ‘DD/MM/YYYY’)           – 03/01/2012
SELECT dbo.fnFormatDate (getdate(), ‘M/DD/YYYY’)            – 1/03/2012
SELECT dbo.fnFormatDate (getdate(), ‘M/D/YYYY’)             – 1/3/2012
SELECT dbo.fnFormatDate (getdate(), ‘M/D/YY’)               – 1/3/12
SELECT dbo.fnFormatDate (getdate(), ‘MM/DD/YY’)             – 01/03/12
SELECT dbo.fnFormatDate (getdate(), ‘MON DD, YYYY’)         – JAN 03, 2012
SELECT dbo.fnFormatDate (getdate(), ‘Mon DD, YYYY’)         – Jan 03, 2012
SELECT dbo.fnFormatDate (getdate(), ‘Month DD, YYYY’)       – January 03, 2012
SELECT dbo.fnFormatDate (getdate(), ‘YYYY/MM/DD’)           – 2012/01/03
SELECT dbo.fnFormatDate (getdate(), ‘YYYYMMDD’)             – 20120103
SELECT dbo.fnFormatDate (getdate(), ‘YYYY-MM-DD’)           – 2012-01-03
– CURRENT_TIMESTAMP returns current system date and time in standard internal format
SELECT dbo.fnFormatDate (CURRENT_TIMESTAMP,‘YY.MM.DD’)      – 12.01.03
GO
————

我只想按照我的要求制作出格式。我怎么能用功能来修改它呢，或者任何人都可以为此做出另一种解决方案。

Answer 1

试试这个

DECLARE @dt DATETIME = getdate()
SELECT LEFT(DATENAME(weekday,@dt),3) + ', ' + DATENAME(day,@dt) + ' ' + DATENAME(month,@dt) + ' ' + DATENAME(year,@dt)

制作具有特定要求的日期字符串

1 个答案: