SQL SERVER´æ´¢¹ý³ÌÖÐʹÓÃÊÂÎñ
Create PROCEDURE UpdateWanjun
@UserName nvarchar(500),
@UserPassword nvarchar(500),
@ReturnVal int output
AS
--Set XAcT_ABORT ON
Begin Transaction T
Update admins set UserPassword = @UserPassword where UserName = @UserName
Update admins set UserPassword = @UserPassword,a='aaadfasdfasdfas' where id=4 --³ö´íÓï¾ä ,aΪintÐÍ,´óСΪĬÈÏÖµ4
--set @ReturnVal=@@Rowcount(Õâ¸ö±äÁ¿,Ö»ÄÜÔÚ½ô°¤×ÅËüµÄÉÏÃæSQLÏÂÆð×÷ÓÃ,ÕâÑù²ÅÄÜ·µ»ØÖµ,Ö»ÓзÅÔÚUpdateÏÂÃæ²Å¹ÜÓÃ)
IF @@Error <> 0
Begin
Print '111'
RollBack Transaction T
End
Else
print '222'
COMMIT Transaction T
GO
####################################################################################
Èç¹ûÔÚÒ»¸ö´æ´¢¹ý³ÌÖÐÖ´Ðе÷ÓÃÁíÒ»¸ö·þÎñÆ÷ÉϵĴ洢¹ý³Ìʱ£¬Ìí¼ÓÊÂÎñʱÐèҪʹÓÃ
BEGIN DISTRIBUTED TRANSACTIONÀ´¿ªÊ¼ÊÂÎñ£¨·Ö²¼Ê½ÊÂÎñ£©
BEGIN DISTRIBUTED TRAN [ SACTION ]
[ transaction_name
| @tran_name_variable
]
²ÎÊý
transaction_name
ÊÇÓû§¶¨ÒåµÄÊÂÎñÃû£¬ÓÃÓÚ¸ú×Ù MS DTC ʵÓù¤¾ßÖеķֲ¼Ê½ÊÂÎñ¡£transaction_name
±ØÐë·ûºÏ±êʶ·û¹æÔò£¬µ«ÊǽöʹÓÃÍ· 32 ¸ö×Ö·û¡£
@
tran_name_variable
ÊÇÓû§¶¨ÒåµÄÒ»¸ö±äÁ¿Ãû£¬Ëüº¬ÓÐÒ»¸öÊÂÎñÃû£¬¸ÃÊÂÎñÃûÓÃÓÚ¸ú×Ù MS DTC ʵÓù¤¾ßÖеķֲ¼Ê½ÊÂÎñ¡£±ØÐëÓà char
¡¢varchar
¡¢nchar
»ò nvarchar
Êý¾ÝÀàÐÍÉùÃ÷¸Ã±äÁ¿¡£
×¢ÊÍ
Ö´ÐÐ BEGIN DISTRIBUTED TRANSACTION Óï¾äµÄ·þÎñÆ÷ÊÇÊÂÎñ´´½¨ÈË£¬²¢ÇÒ¿ØÖÆÊÂÎñµÄÍê³É¡£µ±Á¬½Ó·¢³öºóÐø
COMMIT TRANSACTION »ò ROLLBACK TRANSACTION Óï¾äʱ£¬Ö÷¿Ø·þÎñÆ÷ÇëÇó MS DTC
ÔÚËùÉæ¼°µÄ·þÎñÆ÷¼ä¹ÜÀí·Ö²¼Ê½ÊÂÎñµÄÍê³É¡£
ÓÐÁ½¸ö·½·¨¿É½«Ô¶³Ì SQL ·þÎñÆ÷µÇ¼ÇÔÚÒ»¸ö·Ö²¼Ê½ÊÂÎñÖУº
·Ö²¼Ê½ÊÂÎ
Ïà¹ØÎĵµ£º
ÔÚÎÒÃÇ×öÊý¾Ý¿â³ÌÐò¿ª·¢µÄʱºò£¬¾³£»áÓöµ½ÕâÖÖÇé¿ö£ºÐèÒª½«Ò»¸öÊý¾Ý¿â·þÎñÆ÷ÖеÄÊý¾Ýµ¼Èëµ½ÁíÒ»¸öÊý¾Ý¿â·þÎñÆ÷µÄ±íÖС£Í¨³£ÎÒÃÇ»áʹÓÃÕâÖÖ·½·¨£ºÏÈ°ÑÒ»¸öÊý¾Ý¿âÖеÄÊý¾ÝÈ¡³öÀ´·Åµ½Ä³³ö£¬È»ºóÔÙ°ÑÕâЩÊý¾ÝÒ»ÌõÌõ²åÈ뵽ĿµÄÊý¾Ý¿âÖУ¬ÕâÖÖ·½·¨Ð§Âʽϵͣ¬Ð´Æð³ÌÐòÀ´Ò²ºÜ·±Ëö£¬ÈÝÒ׳ö´í¡£ÁíÍâÒ»ÖÖ·½·¨ÊÇʹÓÃbcp»òBULK IN ......
SqlÓï¾ä
1. ˵Ã÷£º¸´ÖƱí(Ö»¸´Öƽṹ£¬Ô´±íÃû£ºa£¬Ð±íÃû£ºb) SQL:select * into bfrom awhere 1<>1;
2. ˵Ã÷£º¿½±´± ......
Select CONVERT(varchar(100), GETDATE(), 0): 05 16 2006 10:57AM
Select CONVERT(varchar(100), GETDATE(), 1): 05/16/06
Select CONVERT(varchar(100), GETDATE(), 2): 06.05.16
Select CONVERT(varchar(100), GETDATE(), 3): 16/05/06
Select CONVERT(varchar(100), GETDATE(), 4): 16.05.06
Select CONVERT ......
¾µäSQLÓï¾ä´óÈ«
ÏÂÁÐÓï¾ä²¿·ÖÊÇMssqlÓï¾ä£¬²»¿ÉÒÔÔÚaccessÖÐʹÓá£
¡¡¡¡SQL·ÖÀࣺ
¡¡¡¡DDL—Êý¾Ý¶¨ÒåÓïÑÔ(CREATE£¬ALTER£¬DROP£¬DECLARE)
¡¡¡¡DML—Êý¾Ý²Ù×ÝÓïÑÔ(SELECT£¬DELETE£¬UPDATE£¬INSERT)
¡¡¡¡DCL—Êý¾Ý¿ØÖÆÓïÑÔ(GRANT£¬REVOKE£¬COMMIT£¬ROLLBACK)
¡¡¡¡Ê×ÏÈ,¼òÒª½éÉÜ»ù´¡Óï¾ä£º
¡¡¡¡1¡¢Ë ......
ͨ¹ýË÷Òý£¬¿ÉÒÔ¼Ó¿ìÊý¾ÝµÄ²éѯËٶȺͼõÉÙϵͳµÄÏìӦʱ¼ä£»¿ÉÒÔʹ±íºÍ±íÖ®¼äµÄÁ¬½ÓËٶȼӿ졣µ«ÊÇ£¬²»ÊÇÔÚÈκÎʱºòʹÓÃË÷Òý¶¼Äܹ»´ïµ½ÕâÖÖЧ¹û¡£ÈôÔÚ²»Ç¡µ±µÄ³¡ºÏÏ£¬Ê¹ÓÃË÷Òý·´¶ø»áÊÂÓëԸΥ¡£ Ë÷ÒýÊÇÒÔ±íÁÐΪ»ù´¡µÄÊý¾Ý¿â¶ÔÏó¡£Ë÷ÒýÖб£´æ×űíÖÐÅÅÐòµÄË÷ÒýÁÐ
¡¡¡¡
ͨ¹ýË÷Òý£¬¿ÉÒÔ¼Ó¿ìÊý¾ÝµÄ²éѯËٶȺͼõÉÙϵͳµÄÏìӦʱ¼ä£ ......