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

Çóc#²Ù×÷sqlserverÊý¾Ý¿âÎÊÌâ

ÔÚÊý¾Ý¿âÖÐÓÐÕÅ±í£¬ÓÐid,nameÁ½ÁУ¬id ÊÇÖ÷¼ü,ûÓÐÉèÖÃ×ÔÔöÊôÐÔ,ÔÚ³ÌÐòÖÐÈ¡³öÕâÕűí·ÅÈëdatatable£¬ÔÚÕâ¸ödatatableÖвåÈëÒ»Ìõ¼Ç¼£¬µ±¸üÐÂÊý¾Ý¿âʱÌáʾidÁв»ÄÜΪ¿Õ£¬ÇëÎʸÃÔõô½â¾ö£¿
¸øËüÒ»¸öÖµ£¡£¡Ö÷¼ü²»ÄÜΪ¿Õ ......

win7Éϰ²×°sqlserver - MS-SQL Server / ÒÉÄÑÎÊÌâ

ÓÐÈËÊÔ¹ýÔÚwin7Éϰ²×°sqlserverÂð£¿
Ìý˵sql2000×°²»ÉÏÈ¥£¬²»ÖªµÀÆäËû°æ±¾Ðв»ÐС£

ºÃÏñ²»ÐÐ,²»¼æÈÝ,ÉÏ´ÎÒ²ÓÐÈËÎʹýѽ


ºÇºÇ£¬ÓÐÍøÓÑÓÐÏà¹ØµÄ¾­ÑéÂð£¿
Õâ¸ösqlserverÒª¾¡Á¿×°ÔÚwin7ÉÏ¡£

SQLSERVER 2000Ã ......

Çë½ÌSQLSERVERµÄÁ½¸öÎÊÌâ - MS-SQL Server / ÒÉÄÑÎÊÌâ

1¡£ÔõÑùʹxp_cmdshellÄÜÍêÕûÊä³ö³¬¹ý255¸ö×Ö·ûµÄ×Ö·û´®¡£
2¡£select ʱ£¬¼ìË÷ËÙ¶ÈÊÇÓëfromºóµÄ TABLE˳ÐòÓйأ¬»¹ÊÇÓëwhereÌõ¼þµÄ˳ÐòÓйØ(TABLEÊý¾Ý¶àÉÙ )
ÔÚϵͳÊôÐÔÉ趨ÀïÓиöÑ¡Ïî,¿ÉÒÔÐ޸ĵ¥×Ö¶ÎÊä³ö×ÖÊýÏÞÖÆ. ......

sqlserverµ¼³öaccessÖеÄÎÊÌâ

ÎÒÔÚÆóÒµ¹ÜÀíÆ÷Öн«sqlserver µÄÒ»¸öÊý¾Ý¿âµ¼³öΪaccess£¬ÒªÓû§ÃûºÍÃÜÂë,
ÎÒÊäÈëÁËsqlÊý¾Ý¿âµÄ²»ÐÐ
accessĬÈϵÄadminÓû§ÃûÒ³²»ÐС£
Ôõô°ì£¿
µÇ¼Êý¾Ý¿âµÄÃû×ÖºÍÃÜÂë,²»Í¬·þÎñÆ÷,ÏȽ¨Á¢Á´½Ó·þÎñÆ÷

SQL cod ......

sqlserverÊý¾Ý¼Ó×ÜÅÅÐòµÄÓï¾äÔõôд£¿

sqlserverÊý¾Ý¼Ó×ÜÅÅÐòµÄÓï¾äÔõôд£¿
ÈçÏÂÊý¾Ý±ítable
id
a
a
a
b
b
c
ÎÒÒªµÃµ½µÄΪ£º
a 3
b 2
c 1
ÕâÑù¼Ó×ÜidÃû³ÆÒ»ÑùµÄ²¢½øÐÐÅÅÐòÓ¦¸ÃÔõôд£¿
SQL code:
select id,count(1) from tb gro ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ