Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

¡¾³õѧÕßÇó½Ì¡¿SQLServerµÄʱ¼äÓë³ÌÐòÖв»Ò»ÖÂ

loatÀàÐ͵Äֵת»¯ÎªÊ±¼äÊÇ—>
C# code:

DateTime dt = DateTime.fromOADate(40277.4927000525);
MessageBox.Show(dt.ToString());


MessageBoxÏÔʾµÄʱ¼äÊÇ—>2010-4-9 11:49:29

µ«ÊÇͬÑùµÄÊý×Ö£¨¼È40277.4927000525£©£¬Èç¹û´ÓÊý¾Ý¿âÖÐÈ¡³öÀ´ÏÔʾµÄdatagridviewÖУ¬¾Í»á±ÈÉÏÃæµÄʱ¼ä¶àÁ½Ìì¡£
C# code:

SqlDataAdapter da = new SqlDataAdapter("select [ID],cast([Time] as datetime) from DatapointValue2", con);
//×¢:40277.4927000525¾ÍÊÇTimeÁÐijһÐÐÖеÄÖµ



¾­¶Ô±È£¬Í¬ÑùÊÇ40277.4927000525£¬gridviewÖÐÏÔʾµÄÊÇ—>2010-4-11 11:49:29£¬Ò²¾ÍÊDZÈÕæÊµµÄʱ¼ä¶àÁ½Ìì¡£

ÎÒÏÖÔÚÏë×öµÄÊÂÊÇÏëÈÃdataGridviewµÄʱ¼äÏÔʾÕý³££¬¿É·ñÔÚsqlÓï¾äÀïÃæÖ±½Ó¼ôµôÁ½Ì죬»òÕßÓñðµÄ·½·¨¡£Ï£Íû¸ßÊÖÖ¸µã£¡£¡£¡
Íò·Ö¸Ð¼¤£¡£¡£¡£¡£¡£¡


http://msdn.microsoft.com/zh-cn/library/ms186819.aspx

¸Ðл¿Õ¾ü£¬»ØÁË£¡£¡£¡£¡

»ØÁË£¡£¡£¡£¡—>»áÁË£¡£¡£¡£¡


Ïà¹ØÎÊ´ð£º

PB10¡¢PB11Á¬½ÓSQLServer (×ªÔØ)

PB10¡¢PB11Á¬½ÓSQLServer¹Ø¼ü×Ö: pb10¡¢pb11Á¬½Ósqlserver (×ªÔØ)
PB10¡¢PB11Á¬½ÓSQLServer (×ªÔØ)
2007-11-02 22:27
´ÓPB10¿ªÊ¼£¬Ã»ÓÐÁËmssql serverרÓýӿÚÁË£¬ÁíÒ»·½ÃæÊý¾Ý¿â¹ÜÀíϵͳ(DBMS)
»»³ÉÁË ......

sqlserver´íÎó - MS-SQL Server / ÒÉÄÑÎÊÌâ

sqlserver2005 ½¨Á¢µÄÊý¾Ý¿â£¬ÓëÊÖ³Öpda´«ÊäÊý¾Ý£¬×î½üͻȻ³öÏÖÎÞ·¨´«µÝÊý¾ÝµÄÎÊÌ⣬pda¶ËÌáʾµÄ´íÎóʱoutofmemoryexception£¬µ«ÊÇpdaÉÏÃæµÄÈÝÁ¿Ã»ÓÐÎÊÌ⣬
sqlserverµÄÈÕ×ÓÉϵĴíÎóÈçÏ£º
ÈÕÆÚ 2010-1-25 14:45: ......

¼±¼±¼±,SqlServerµÄÎÊÌâ

ÎÒÍùSqlServerÖмÓÊý¾ÝµÄʱºò,Ëû¸øÎÒ±¨Á˸ö´í
˵:"µ± IDENTITY_INSERT ÉèÖÃΪ OFF ʱ£¬²»ÄÜÏò±í 'O_TRAIN_CATEGORY' ÖеıêʶÁвåÈëÏÔʽֵ¡£"
ÒòΪÎÒÕâ¸ö±íµÄÖ÷¼üÉèÖõÄÊÇ×ÔÔöµÄ!ÊDz»ÊÇ×ÔÔöû¿ª°¡?Ôõô¸ ......

sqlserver Êý¾Ý¿â±¸·ÝÎÊÌâ

ÎÒÔÚ±¾µØÓÃMicrsosoft sql server managementÁ¬½Ó·þÎñÆ÷ÉϵÄÊý¾Ý¿â¡£
ÎÒÏë°Ñ·þÎñÆ÷ÉϵÄÊý¾Ý¿â ±¸·Ýµ½ÎÒ±¾µØ¡£¿ÉÒÔÔõôҲ²»³É¹¦¡£
µÚÒ»ÖÖ·½·¨ÊÇÓÃsql£º
Backup Database test_database
To disk='C:\test_database ......

sqlserver ´æ´¢¹ý³ÌÖе÷ÓÃ×Ô¶¨Ò庯Êý

º¯ÊýʵÏÖÈçÏ£º
GO
CREATE FUNCTION dbo.fn_Sum(@code varchar(50))
RETURNS varchar(8000)
AS
BEGIN
DECLARE @values varchar(8000)
SET @values = ''
SELECT @values = @values + ',' + values from test ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ