Oracle¸üжàÐÐ
¸üжàÐеIJ½Ö裺
²½Öè¶à£¬µ«Ð§ÂʱȽϸߣº
1¡¢create table ÁÙʱ±í value (select a.id,a.name,b.name,... from table1 a,table2 b where a.id=b.id)
2¡¢É¾³ýtable1ÖеļǼ£¬²»Òªdrop
3¡¢insert into table1 select ÄãÐèÒªµÄ×Ö¶Î from ÁÙʱ±í¡£
select * from tb_ai03
create table tb_ai031 as select * from tb_ai03
delete from tb_ai03 a where a.yymm in ('200911','200910')
insert into tb_ai03
select a.model,a.yysal/b.unitestrip as yysal ,a.mmsal/b.unitestrip as mmsal,
a.yychu/b.unitestrip as yychu,a.mmchu/b.unitestrip as mmchu,a.yymm
from tb_ld04 b,tb_ai031 a
where a.model=b.model(+) and a.yymm in ('200911','200910')
Ïà¹ØÎĵµ£º
ËäȻѧϰJavaºÜ¾ÃÁË£¬×Ô¼ºÒ²Á¬½Ó¹ýһЩÊý¾Ý¿â£¬±ÈÈçmysqlÖ®ÀàµÄ£¬Èç½ñÄØ£¬Ò²Ñ§Ï°ÁËÒ»¶Îʱ¼äµÄOracle£¬È»¶øÄØ£¬½ñÌìÊÇÎÒµÚÒ»´ÎÁ¬½ÓOracle£¬ºÙºÙ£¬Ó¦¸Ã»¹²»ËãÌ«³Ù°É¡£
½ñÌìÄØ£¬Óе㱿׾£¬´ó¼ÒĪЦ£¡
ÎÒÕâÊÇÒ»¸ö²éѯÀý×Ó
Ê×ÏÈ£¬Ô ......
ѧϰOracle DBAÒ²°ë¸ö¶àѧÆÚÁË£¬½ñÌìÃÍÈ»²Å·¢ÏÖ£¬ÔÀ´ÎÒµÄÊ黹ÊǺÜеģ¬ÉϿβÙ×÷ʱºòÒ²Ö»ÊÇÖªµÀ´ó¸ÅÔõô×ö£¬µ«ÊÇÒªÕæµÄÈ«²¿×Ô¼º×ö£¬¶ø²»È¥·Ê黹ÊÇÓÐÒ»¶¨µÄÄѶȵģ¬ËùÒÔÄØ£¬½ñÌ쿪ʼ½«DBA´ÓÍ·¸´Ï°Ò»±é£¬Í¬Ê±ÔÙ²Ù×÷Ò»±é¡£
µÚÒ»Õ£¬Ñ§µÄÊÇOracleµÄÌåϵ½á¹¹£ ......
×öÊý¾Ý¿â¿ª·¢»ò¹ÜÀíµÄÈ˾³£Òª´´½¨´óÁ¿µÄ²âÊÔÊý¾Ý£¬¶¯²»¶¯¾ÍÐèÒªÉÏÍòÌõ£¬Èç¹ûÒ»ÌõÒ»ÌõµÄ¼È룬ÄÇ»áÀË·Ñ´óÁ¿µÄʱ¼ä£¬±¾ÎĽéÉÜÁËOracleÖÐÈçºÎͨ¹ýÒ»ÌõSQL¿ìËÙÉú³É´óÁ¿µÄ²âÊÔÊý¾ÝµÄ·½·¨¡£
²úÉú²âÊÔÊý¾ÝµÄSQLÈçÏ£º
SQL> select rownum as id,
2 &nbs ......
ÔÚsqlÓï¾äÖÐÉæ¼°µ½Ê±¼äÀàÐÍʱ ÈôÖ»ÏëÒªÈÕÆÚ to_date('2007-7-8','yyyy-mm-dd')
ÔÚC#ÖÐÓÐdatetimeÀàÐÍ£¬´úÂë˵Ã÷Ò»ÇÐ
DateTime dt = System.DateTime.Now;
string lsh;
lsh=string.Format("{0:yyyyMMddHHmmss}", dt);
DateTime dt = DateTime.Now;
Label1.Text = dt.To ......
ÎÊÌ⣺Êý¾Ý¿âΪ£ºOracle Database 10g Release 2
¡¡¡¡²Ù×÷ϵͳΪ£ºWindows Vista/Windows XP MCE(Á½¸ö²Ù×÷ϵͳ·Ö±ð°²×°ºó³öÏÖÏàͬÎÊÌâ)
¡¡¡¡Êý¾Ý¿â°²×°ºó(һ·ĬÈÏÖµ)£¬³¢ÊÔInsertÊý¾ÝºóSelect³öÀ´£¬ÔÀ´µÄÖÐÎÄ×Ö¶ÎÖµ±ä³ÉÁË??????ÐÎʽµÄÂÒÂ룬¸ÃÈçºÎ½â¾ö£¿
¡¡¡¡ÔÚÍøÉϲéÁËһЩ×ÊÁÏ£¬ËµÊÇ·þÎñÆ÷Óë¿Í»§¶Ë×Ö·û¼¯²»Æ¥Å䣬µ«Î ......