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

mysqlÇøÃ»¸ßÊÖ - MS-SQL Server / »ù´¡Àà

ÎÒ¾õµÃmysqlºÍsqlserverÓй²Í¬µÄµØ·½£º
ÓиöÎÊÌâÊǹØÓÚ±íµÄËøÎÊÌ⣺
½ø³ÌA ½ø³ÌB
select * from user where id in lock share mode£¨¹²ÏíËø)


  update user set name='55' where id=1£¨´ËÊ±Ëø×¡µÈ´ýA£©
 
update user set name='66' where id=1£¨Õâ¸öʱºò»á³öÏÖËÀËø)
   
  ¸üгɹ¦


Èç¹û»»³Éɾ³ýµÄ»°¾Í²»»á³öÏÖËÀËø×´Ì¬£¬B»áµÈ´ýAÌá½»ºóɾ³ý
Èç¹û½«select»»ÎªÅÅËûËøµÄ»°B»áµÈ´ýAÌá½»ºó¸üÐÂ
ÊéÖнâÊÍÊÇBÓÉÓÚÎÞ·¨»ñÈ¡¹²ÏíËøËùÒÔ·ÅÈë¶ÓÁУ¬A´ËʱupdateÓë¶ÓÁеÄBµÄupdate³åÍ»Ôì³ÉËÀËø£¬
ÎÒÈÏΪµÄÊÇBÓ¦¸ÃÔÚAÌá½»ºó²Å½øÐиüвÙ×÷£¬´ËʱΪʲô²¢Ã»ÓÐÌá½»¾Í»á·¢Éú³åÍ»ÄØ£¿¶øselectÉèΪÅÅËûËø¾Í²»»á
¹²ÏíËøÓëÅÅËûËø»¹ÓÐʲôԭÀíÄØ£¿Ð»Ð»
Èç¹ûÊÇsql server,Ôò²Î¿¼ÏÂÃæµÄһЩÎÄÕÂ.
SQL code:
1 ÈçºÎËøÒ»¸ö±íµÄijһÐÐ

A Á¬½ÓÖÐÖ´ÐÐ

SET TRANSACTION ISOLATION LEVEL REPEATABLE READ

begin tran

select * from tablename with (rowlock) where id=3

waitfor delay '00:00:05'

commit tran

BÁ¬½ÓÖÐÈç¹ûÖ´ÐÐ

update tablename set colname='10' where id=3 --ÔòÒªµÈ´ý5Ãë

update tablename set colname='10' where id<>3 --¿ÉÁ¢¼´Ö´ÐÐ

2 Ëø¶¨Êý¾Ý¿âµÄÒ»¸ö±í


Ïà¹ØÎÊ´ð£º

Asp+sql serverÎÊÌâ - Web ¿ª·¢ / ASP

ÎÒÒ»¸öÏîÄ¿£¬Óиö²åÈë²Ù×÷£¬¾ßÌåÊÇÕâÑùµÄ£º
ÎÒÓнø»õÐÅÏ¢±í¡£ÔÚ³ö»õʱѡÔñÏàÓ¦µÄ½ø»õÐÅÏ¢£¬ÊäÈëÊýÁ¿£¬Ñ¡Ôñ²¿Ãź󣬵㱣´æ°´Å¥£¬ÓÉÓÚÍøÂçÑÓʱ£¬µãÒ»ÏÂûÓз´Ó³£¬ÓÚÊÇÓû§¾ÍÓÖµãһϣ¬µ¼ÖÂÒ»´Î²åÈëÁËÁ½Ìõ¼Ç¼:
Àý£º ......

Êý¾ÝÒÔxml¸ñʽ·µ»Ø - MS-SQL Server / Ó¦ÓÃʵÀý

´ÓÊý¾Ý¿âÖвéѯһÕűíµÄÊý¾Ý
select ²¿ÃÅ,ÐÕÃû from tb
ÈçºÎ²ÅÄÜÉú³ÉÏÂÃæµÄxml¸ñʽ
XML code:
<folder state="unchecked" label="È«²¿">
¡¡¡¡ <folder state="unchecked&qu ......

netbeans Á¬mysql - Web ¿ª·¢ / HTML(CSS)

ÎÒÓõÄÊÇÁ¬½Ó³Ø×öµÄ£¬ÅäÁ¬½Ó³ØµÄ·½·¨Ó¦¸ÃûÓÐ´í£¬ÎªÊ²¾ÍÊdzöÏÖÕâÖÖÎÊÌâ
javax.servlet.ServletException: javax.naming.NameNotFoundException: No object bound to name java:comp/env/test
ÇëÎÊ´óÏÀÃÇÕâÊÇÔ ......

sql - MS-SQL Server / ÒÉÄÑÎÊÌâ

sqlµÄÈí¼þÔÚÄÄÀï¿ÉÒÔϰ¡£¡ÔÚÍøÉÏÕÒÁËÂù¶à¶¼Óò»Á˰¡

Ëæ±ã¸ãÒ»D°æ°É£¬

ѸÀ×µÚÒ»¸ö¾Í¿ÉÒÔÓÃ
2000,2005¶¼ÕâÑù

http://119.147.41.16/down?cid=0698C2D64D7D637D90A6D2482298E6717D4F15CD&t=2&fmt=-1 ......

PHP+MYSQLÊý¾Ý¼¯´¦Àí - PHP / »ù´¡±à³Ì

1¡¢ÊDz»ÊÇPHPÖÐÖ»ÄÜʹÓÃmysql_query("update user_aa set money=money2-".$bpanmm." where uid=".$userppp);¸üÐÂÊý¾Ý£¿£¿£¿
2¡¢PHP¸üÐÂmysql_fetch_row($res)Óëmysql_fetch_array($res)ÖеÄÊý¾ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ