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

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

jdbcÁ¬½ÓOracle

      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 ......

ÔÚLinuxϵͳÉÏʵÏÖÓÃPythonÔ¶³Ì·ÃÎÊOracleÊý¾Ý¿â

1¡¢ÏÂÔØoracleÈí¼þ
http://www.oracle.com/technology/software/tech/oci/instantclient/index.html
oracle-instantclient-basic-10.2.0.4-1.i386.rpm
oracle-instantclient-sqlplus-10.2.0.4-1.i386.rpm
oracle-instantclient-devel-10.2.0.4-1.i386.rpm
2¡¢°²×°rpm°ü
rpm -ivh oracle-instantclient-basic-10.2.0.4 ......

oracle ʱ¼äÀàÐÍ C#

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 ......

ORACLEµÄlpadº¯Êý¡¢rpadº¯ÊýÓ÷¨

ORACLEµÄlpadº¯Êý¡¢rpadº¯ÊýÓ÷¨
Óï·¨£ºselect lpad('12345678',1,'0') from dual;
·µ»Ø×Ö·û´®‘12345678’µÄ´Ó×ó±ß³¤¶ÈΪ1µÄ×Ö·û´®£¬Èç¹û²»¹»£¬×ó±ß²¹‘0’
Óï·¨£ºselect rpad('12345678',1,'0') from dual; 
·µ»Ø×Ö·û´®‘12345678’µÄ´Ó×ó±ß³¤¶ÈΪ1µÄ×Ö·û´®£¬Èç¹û²»¹»£¬Óұ߲¹&ls ......

Oracle 10.1 Statistics

Oracle 10.1 Statistics£º
In Oracle 9.2 there were 264 statistics; in Oracle 10.1 there are 332 statistics
The following table shows the 106 statistics that were added in Oracle 10.1:
 
Name
application wait time
cluster wait time
concurrency wait time
consistent gets direct
consistent ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ