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

Sql ¸ù¾ÝÃû³ÆÌÞ³ýÖØ¸´Êý¾Ý¡¢¸ù¾Ýid·µ»Ø×îеÄ

select *
  from (
        select soft.NETMODEL,
                soft.softname,
                soft.softid,
                soft.SOFTVER,
                soft.createdate,
                row_number() over(partition by softname order by softId desc) indexId
          from ZTEspt_Soft_File soft
         where soft.softkind = 7)
 where indexId = 1;
Òª½â¾öµÄÎÊÌâ
Òѽâ¾öµÄЧ¹û


Ïà¹ØÎĵµ£º

Hibernate ²»Í¬Êý¾Ý¿âµÄÁ¬½Ó¼°SQL·½ÑÔ

<!--MySql Çý¶¯³ÌÐò eg. mysql-connector-java-5.0.4-bin.jar-->
  <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
  <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
  <!-- JDBC URL -->
......

VS2010Öд´½¨×Ô¶¨ÒåSQL Rule£¨ºÂÏÜç⣩

VS2010ÒѾ­·¢²¼¼¸Ììʱ¼äÁË£¬Ò»Ð©ÐµÄÌØÐÔÌØ±ðÒýÈËעĿ£¬±ÈÈ磺 ÐÔÄܵÄÎȶ¨ºÍÌáÉý£¬±íÏÖÔÚWPF GUIºÍWPFÎı¾³ÊÏÖ¡£ Windows Azure ToolsÄ£°å¡£ ¶àÏÔʾÆ÷Ö§³Ö£¬Êä³ö´°¿Ú£¬Ààͼ´°¿Ú£¬´úÂ붨Òå´°¿ÚµÈÌṩ¸¨ÖúÐÅÏ¢µÄ´°¿Ú·ÅÖÃÔÚ¸±ÏÔʾÆ÷ÖС£ ¶Ô²¢ÐмÆË㿪·¢µÄ´óÁ¿Ö§³Ö¡£ °üº¬ÁËSharePointµÄÏîĿģ°åºÍµ÷ÊÔÖ§³Ö ......

SQL Ñ­»·

declare @i int
set @i=1
while @i<30
begin
insert into test (userid) values(@i)
set @i=@i+1
end
---------------
while Ìõ¼þ
begin
Ö´ÐвÙ×÷
set @i=@i+1
end
WHILE
ÉèÖÃÖØ¸´Ö´ÐÐ SQL Óï¾ä»òÓï¾ä¿éµÄÌõ¼þ¡£Ö»ÒªÖ¸¶¨µÄÌõ¼þÎªÕæ£¬¾ÍÖØ¸´Ö´ÐÐÓï¾ä¡£¿ÉÒÔʹÓà BREAK ºÍ CONTINUE ¹Ø¼ü×ÖÔÚÑ­»·ÄÚ²¿¿ØÖÆ W ......

[MySQLÓÅ»¯] ÈçºÎÁ˽âSQLµÄÖ´ÐÐÆµÂÊ


[MySQLÓÅ»¯] -- ÈçºÎÁ˽âSQLµÄÖ´ÐÐÆµÂÊ
ʱ¼ä:2010-2-28À´Ô´:HaCMS¿ªÔ´ÉçÇø ×÷Õß:chuxu
MySQL ¿Í»§¶ËÁ¬½Ó³É¹¦ºó£¬Í¨¹ý show [session|global]status ÃüÁî ¿ÉÒÔÌṩ·þÎñÆ÷״̬ÐÅÏ¢£¬Ò²¿ÉÒÔÔÚ²Ù×÷ϵͳÉÏʹÓà mysqladmin extended-status ÃüÁî»ñµÃÕâЩÏûÏ¢¡£ show [session|global] status ¿ÉÒÔ¸ù¾ÝÐèÒª¼ÓÉϲÎÊý&ldquo ......

SQL´¥·¢Æ÷ʵÀý

¶¨Ò壺 ºÎΪ´¥·¢Æ÷£¿ÔÚSQL ServerÀïÃæÒ²¾ÍÊǶÔijһ¸ö±íµÄÒ»¶¨µÄ²Ù×÷£¬´¥·¢Ä³ÖÖÌõ¼þ£¬´Ó¶øÖ´ÐеÄÒ»¶Î³ÌÐò¡£´¥·¢Æ÷ÊÇÒ»¸öÌØÊâµÄ´æ´¢¹ý³Ì¡£
     ³£¼ûµÄ´¥·¢Æ÷ÓÐÈýÖÖ£º·Ö±ðÓ¦ÓÃÓÚInsert , Update , Delete Ê¼þ¡£(SQL Server 2000¶¨ÒåÁËеĴ¥·¢Æ÷£¬Õ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ