Converting Datetime values to various formats - SQL

Using the CONVERT function in SQL Server 2005 the following datetime formats can be produced:


SELECT
GETDATE() AS UnconvertedDateTimeUsingGetDate,
CURRENT_TIMESTAMP AS UnconvertedDateTimeUsingCurrentTimestamp,
CAST(GETDATE() AS nvarchar(30)) AS UsingCast,
CONVERT(nvarchar(30), GETDATE(), 100) AS [Default mon dd yyyy hh:miAM (or PM)],
CONVERT(nvarchar(30), GETDATE(), 101) AS [USA mm/dd/yy],
CONVERT(nvarchar(30), GETDATE(), 102) AS [ANSI yy.mm.dd],
CONVERT(nvarchar(30), GETDATE(), 103) AS [British/French dd/mm/yy],
CONVERT(nvarchar(30), GETDATE(), 104) AS [German dd.mm.yy],
CONVERT(nvarchar(30), GETDATE(), 105) AS [Italian dd-mm-yy],
CONVERT(nvarchar(30), GETDATE(), 106) AS [dd mon yy],
CONVERT(nvarchar(30), GETDATE(), 107) AS [Mon dd, yy],
CONVERT(nvarchar(30), GETDATE(), 108) AS [hh:mm:ss],
CONVERT(nvarchar(30), GETDATE(), 109) AS [Default+milliseconds mon dd yyyy hh:mi:ss:mmmAM (or PM)],
CONVERT(nvarchar(30), GETDATE(), 110) AS [USA mm-dd-yy],
CONVERT(nvarchar(30), GETDATE(), 111) AS [Japan yy/mm/dd],
CONVERT(nvarchar(30), GETDATE(), 112) AS [ISO yymmdd],
CONVERT(nvarchar(30), GETDATE(), 113) AS [Europe default + milliseconds dd mon yyyy hh:mm:ss:mmm(24h)],
CONVERT(nvarchar(30), GETDATE(), 114) AS [hh:mi:ss:mmm(24h)],
CONVERT(nvarchar(30), GETDATE(), 120) AS [ODBC canonical yyyy-mm-dd hh:mi:ss(24h)],
CONVERT(nvarchar(30), GETDATE(), 121) AS [ODBC canonical (with milliseconds) yyyy-mm-dd hh:mi:ss.mmm(24h)],
CONVERT(nvarchar(30), GETDATE(), 126) AS [ISO8601 yyyy-mm-dd Thh:mm:ss.mmm(no spaces)],
CONVERT(nvarchar(30), GETDATE(), 130) AS [Hijri**** dd mon yyyy hh:mi:ss:mmmAM],
CONVERT(nvarchar(30), GETDATE(), 131) AS [ Hijri**** dd/mm/yy hh:mi:ss:mmmAM]

Create a CTE list of dates on the fly - SQL

CTE list of dates on the fly:

WITH D AS
(
SELECT number AS rn FROM master.dbo.spt_values
WHERE type = 'P' AND number BETWEEN 0 AND 29
)
SELECT DATEADD(dd, -D.rn, DATEADD(dd, DATEDIFF(dd,0,GETDATE()), 0)) AS ReportDate
FROM D;


2000/pre CTE solution here

Create a list of dates on the fly - SQL

I've recently had the requirement to produce a list of the last 30 days on the fly (I didn't have the option to refer to a 'Numbers' table). This was to be used as a 'Command' in Crystal Reports and joined to a database table to produce 'missing dates'.

Using the system table, spt_values, the first stage was to produce a list of numbers:

SELECT number AS rn FROM master.dbo.spt_values
WHERE type = 'P' AND number BETWEEN 0 AND 29

This is then extended to produce a list of the last 30 dates.

SELECT DATEADD(dd, -D.rn, DATEADD(dd, DATEDIFF(dd,0,GETDATE()), 0)) AS ReportDate
FROM (
SELECT number AS rn FROM master.dbo.spt_values
WHERE type = 'P' AND number BETWEEN 0 AND 29
) AS D

This was with help from both Chris Morris & Kevin McKelvey at http://www.sqlservercentral.com/

CTE solution here



 

DateName function - SQL

SELECT DATENAME(month, GETDATE()) AS 'MonthName';

Date Stamp trigger - SQL

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TRIGGER [trg_test]
ON [dbo].[JobLog]
AFTER UPDATE
AS
BEGIN
IF
UPDATE(JobLogSignOff)
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON
;
UPDATE JobLog
SET JobLogSignOffTimeStamp = GETDATE()
WHERE
JobLogID in (SELECT JobLogID FROM inserted)
-- Insert statements for trigger here
END
END