SQL @005 ÊÕËõÈÕÖ¾
.Çå¿ÕÈÕÖ¾
DUMP TRANSACTION ¿âÃû WITH NO_LOG
2.½Ø¶ÏÊÂÎñÈÕÖ¾£º
BACKUP LOG ¿âÃû WITH NO_LOG
3.ÊÕËõÊý¾Ý¿âÎļþ(Èç¹û²»Ñ¹Ëõ,Êý¾Ý¿âµÄÎļþ²»»á¼õС
ÆóÒµ¹ÜÀíÆ÷--ÓÒ¼üÄãҪѹËõµÄÊý¾Ý¿â--ËùÓÐÈÎÎñ--ÊÕËõÊý¾Ý¿â--ÊÕËõÎļþ--Ñ¡ÔñÈÕÖ¾Îļþ--ÔÚÊÕËõ·½Ê½ÀïÑ¡ÔñÊÕËõÖÁXXM,ÕâÀï»á¸ø³öÒ»¸öÔÊÐíÊÕËõµ½µÄ×îСMÊý,Ö±½ÓÊäÈëÕâ¸öÊý,È·¶¨
Ïà¹ØÎĵµ£º
if object_id('tb') is not null drop table tb
go
create table tb([A] varchar(10),[B] int)
insert tb
select 'bcd',1 union all
select 'bcde',2 union all
select 'cd',3
go
¸öÈË·ÖÎöÕâµÀÌâµÄ˼·ÊÇ£º
ͨ¹ýSubstring() À´Ñ»··Ö¸î B ÁÐϵÄ×Ö·û´®¡£¡£
--ÏëµÃµ½µÄ½á¹û£º
/**
a b& ......
½ñÌìÊÔÑéʹÓÃpythonÁ¬½Ó sql server ·þÎñÆ÷¡£ÎҼǵÃÒÔǰʹÓÃadoÁ¬½Óaccess·Ç³£Ë³Àû£¬µ«ÊǽñÌìʹÓÃadoÁ¬½Ósql server¾¹È»²»³É¹¦¡£ÔÚpythonÀïÃæµÄ³ö´íÐÅÏ¢¶¼ÏÔÊ¾Îª×ªÒÆÐòÁУ¬·ÑÁ˰ëÌì¾¢²Å¸ãÃ÷°×£ºÎÞЧµÄÀà±ð×Ö·û´®¡£
ÊÇÁ¬½Ó×Ö·û´®Â𣿲âÊÔÁ˺ü¸¸ö È·ÈÏÎÞÎóµÄÊý¾Ý¿âÁ¬½Ó×Ö·û´®£¬Ò²ÊÇÈç´Ë ¡£ÉÏÍøËÑË÷£¬ÊÇÓпÉÄÜÊÇ comµÄÀà±ð×Ö ......
ÔÎĵØÖ·£ºhttp://topic.csdn.net/u/20100203/17
/8F916471-597D-481A-B170-83BCEFE3B199.html
============================ÎÒÊÇ·Ö¸î
·û================================
Ó¦Ò»¸öÅóÓѵÄÒªÇó£¬ÌùÉÏÊղصÄSQL³£Ó÷ÖÒ³µÄ°ì·¨¡«¡«
±íÖÐÖ÷¼ü±ØÐëΪ±êʶÁÐ
£¬[ID] int IDENTITY (1,1)
1.·ÖÒ³·½°¸Ò»£º(ÀûÓÃNot InºÍSELECT ......
Random rnd = new Random(unchecked((int)DateTime.Now.Ticks));
int intRandomNumber = rnd.Next();
&nb ......
sql2000º¯Êý´óÈ«1 µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate()
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
ÀýÈ磺ÏòÈÕÆÚ¼ÓÉÏ2Ìì
select dateadd(day,2,'2004-10-15') --·µ»Ø£º2004-10-17 00:00:00.000
3. datediff ·µ»Ø¿çÁ½¸öÖ¸¶¨ÈÕÆÚµÄÈ ......