在SQL中将数字日期列转换为日期和时间

Question

我目前正在使用SQL Server Management Studio 2008,很久以前就创建了数据库.创建它的人将Date设置为数值,并将GMT Time设置为比实际时间提前4小时,从而在查询中的某处强制执行-4小时功能.我感兴趣的只是使用正确的日期和时间格式转换4小时后当天前4天的数据.

列:日期(数字(17,9),非空)Parms(nvarchar(2000),null)...等

   Right now my query is:
   -----
   SELECT ItemId, DATE,
   SUBSTRING(Parms,1,6) +' Was removed from:' AS RemovalPath,
   [OBJECT] AS [MOVE LIST]
   FROM JnlList
   where UserCode = 'Automation' AND ListType = 'M'
   Order by Date DESC, RemovalPath DESC;
   -----
   1 sample row output for my query out of 385 rows is:
   -----
   ItemId: 9393
   Date: 20130627.180846113
   RemovalPath: V77963 Was Removed From:
   MOVE LIST: M-002411
   -----
   REQUIRED OUTPUT:
   ItemId: 9393
   Date: 2013-06-27
   Time: 2:08:46
   RemovalPath: V77963 Was Removed From:
   MOVE LIST: M-002411
   -----

任何人都可以对我的查询进行更改以获得所需的输出吗？非常感谢.

Answer 1

试试这个:

;WITH CTE AS
(
    SELECT  CONVERT(DATETIME,LEFT([Date],8)+' '+
                             SUBSTRING([Date],10,2)+':'+
                             SUBSTRING([Date],12,2)+':'+
                             SUBSTRING([Date],14,2)+'.'+
                             RIGHT([Date],3)) [Date],
            ItemId,
            Parms,
            [OBJECT]
    FROM (  SELECT  ItemId,
                    CONVERT(VARCHAR(18),[Date]) [Date],
                    Parms,
                    [OBJECT]
            FROM YourTable
            WEHRE UserCode = 'Automation' AND ListType = 'M') A
)
SELECT  ItemId,
        CONVERT(DATE,[Date]) [Date],
        CONVERT(TIME(0),[Date]) [Time],
        SUBSTRING(Parms,1,6) +' Was removed from:' RemovalPath,
        [OBJECT] [MOVE LIST]
FROM CTE
WHERE [Date] >= CONVERT(DATE,DATEADD(DAY,-4,GETDATE()))