MSSQLÖмÆËãÁ½¸öÈÕÆÚÖ®¼äÏà¸ô xxÌìxxСʱxx·ÖxxÃë
DECLARE @dt1 AS datetime, @dt2 AS datetime;
SELECT @dt1 = '2008-8-4 9:36:41', @dt2 = '2008-8-2 9:33:39';
DECLARE @Days AS int, @Hours AS int, @Minutes AS int, @Seconds AS int;
SET @Seconds = DATEDIFF( second, @dt2, @dt1);
SET @Days = @Seconds / (24 * 60 * 60)
SET @Seconds = @Seconds - @Days * 24 * 60 * 60
SET @Hours = @Seconds / (60 * 60);
SET @Seconds = @Seconds - @Hours * 60 * 60
SET @Minutes = @Seconds / 60;
SET @Seconds = @Seconds - @Minutes * 60;
SELECT CONVERT(varchar(10), @Days ) + 'Ìì'
+ CONVERT(varchar(10), @Hours ) + 'Сʱ'
+ CONVERT(varchar(10), @Minutes ) + '·Ö'
+ CONVERT(varchar(10), @Seconds ) + 'Ãë';
Ïà¹ØÎĵµ£º
SQL Server ÌṩϵͳÊý¾ÝÀàÐͼ¯£¬¶¨ÒåÁË¿ÉÓë SQL Server Ò»ÆðʹÓõÄËùÓÐÊý¾ÝÀàÐÍ¡£ÏÂÃæÁгöϵͳÌṩµÄÊý¾ÝÀàÐͼ¯¡£
¿ÉÒÔ¶¨ÒåÓû§¶¨ÒåµÄÊý¾ÝÀàÐÍ£¬ÆäÊÇϵͳÌṩµÄÊý¾ÝÀàÐ͵ıðÃû¡£ÓйØÓû§¶¨ÒåµÄÊý¾ÝÀàÐ͵ĸü¶àÐÅÏ¢£¬Çë²Î¼û sp_addtype ºÍ´´½¨Óû§¶¨ÒåµÄÊý¾ÝÀàÐÍ¡£
µ±Á½¸ö¾ßÓв»Í¬Êý¾ÝÀàÐÍ¡¢ÅÅÐò¹æÔò¡¢¾«¶È¡¢Ð¡ÊýλÊý»ò³ ......
Êý¾ÝÀàÐÍ
ÀàÐÍ
ÃèÊö
bit
ÕûÐÍ
bit Êý¾ÝÀàÐÍÊÇÕûÐÍ£¬ÆäÖµÖ»ÄÜÊÇ0¡¢1»ò¿ÕÖµ¡£ÕâÖÖÊý¾ÝÀàÐÍÓÃÓÚ´æ´¢Ö»ÓÐÁ½ÖÖ¿ÉÄÜÖµµÄÊý¾Ý £¬ÈçYes »òNo¡¢True »òFa lse ¡¢On »òOff
int
ÕûÐÍ
int Êý¾ÝÀàÐÍ¿ÉÒÔ´æ´¢´Ó- 231( ......
--×Ö¶ÎÌí¼Ó˵Ã÷
EXEC sp_addextendedproperty 'MS_Description', 'ÒªÌí¼ÓµÄ˵Ã÷', 'user', dbo, 'table', ±íÃû, 'column', ÁÐÃû
--ɾ³ý×Ö¶Î˵Ã÷
EXEC sp_dropextendedproperty 'MS_Description', 'user', dbo, 'table', ±íÃû, 'column', ×Ö¶ÎÃû
--²é¿´×Ö¶Î˵Ã÷
SELECT
[Table Name] = i_s.TAB ......
²éѯÓï¾äÖ»ÒªÕâÑùд,¾Í¿ÉÒÔËæ»úÈ¡³ö¼Ç¼ÁË
SQL="Select top 6 * from Dv_bbs1 where isbest = 1 and layer = 1 order by newID() desc"
ÔÚACCESSÀï
SELECT top 15 id from tablename order by rnd(id)
SQL Server£º
Select TOP N * from TABLE Order By NewID()
Access£º
Select TOP N * from TABLE Order By Rnd(ID ......
--´Ë´úÂëʵÏÖSQLÊý¾Ý¿âÔ¶³Ì±¸·Ý£¬·Åµ½×÷ÒµÀïÃæÖ´ÐпÉÒÔ×Ô¶¯±¸·ÝÊý¾Ý¿â¡¢×Ô¶¯É¾³ý@keepNDaysÌìÇ°±¸·Ý¡£
--´Ë´úÂ뽫±¾µØËùÓеÄÓû§Êý¾Ý¿â±¸·Ýµ½¹²ÏíĿ¼¡°\\backupServerIp\ShareName\Êý¾Ý¿â±¸·Ý¡±Ï¡£
--²¢É¾³ýÌìÇ°µÄ±¸·ÝÎļþ¡£Òª±¸·Ý³É¹¦±ØÐëÄܹ»¶Ô¹²ÏíĿ¼ÓвÙ×÷ȨÏÞ£¡
sp_configure 'xp_cmdshell',1 ......