Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

OracleÊý¾Ýµ¼³öµ½DBFµÄÎÊÌâ

 OracleÊý¾Ýµ¼³öºÜ¼òµ¥£¬µ«ÎªÁËÌá¸ßËٶȣ¬ÎÒÒ»°ã²»Ö±½Óµ¼³ö³ÉDBF£¬¶øÊÇÏȵ¼³ö³ÉCSV¸ñʽµÄÎı¾Îļþ¡£
½ñÌì¾ÍÓöµ½Ò»¸öÎÊÌ⣬µ¼³öµÄcsvÔÚת»»³Édbfʱ³öÏÖÁ˺ܶà¿ÕÐС£¾­¹ý²éÕÒÎÊÌ⣬·¢ÏÖÊÇ×Ö¶ÎÖк¬Óл»Ðзûµ¼Ö¡£
ʹÓÃ
select Replace(zsyj,chr(13)||chr(10),'')  as SXPD  from TableName
½â¾öÎÊÌâ¡£


Ïà¹ØÎĵµ£º

ÈçºÎ¿ª·¢ORACLE´æ´¢¹ý³Ì

 Ò». ¸ÅÊö
¡¡¡¡Oracle´æ´¢¹ý³Ì¿ª·¢µÄÒªµãÊÇ£º
¡¡¡¡• ʹÓÃNotepadÎı¾±à¼­Æ÷£¬ÓÃOracle PL/SQL±à³ÌÓïÑÔдһ¸ö´æ´¢¹ý³Ì;
¡¡¡¡• ÔÚOracleÊý¾Ý¿âÖд´½¨Ò»¸ö´æ´¢¹ý³Ì;
¡¡¡¡• ÔÚOracleÊý¾Ý¿âÖÐʹÓÃSQL*Plus¹¤¾ßÔËÐд洢¹ý³Ì;
¡¡¡¡• ÔÚOracleÊý¾Ý¿âÖÐÐ޸Ĵ洢¹ý³Ì;
¡¡¡¡• ͨ¹ý±àÒë´íÎóµ÷ÊÔ´æ´ ......

LinuxÏÂOracleµÄ°²×°Ïêϸ²½Öè

 
1.       ϵͳÅäÖùý³Ì
2.1. oracle°²×°Ìõ¼þ¼ì²é
2.1.1.               Ó²¼þ¼ì²é
¼ì²éÓ²¼þÇé¿öÊÇ·ñ·ûºÏoracle 10g µÄ°²×°ÒªÇó¡£ÒÔrootµÇ¼ϵͳ£¬ÓÃϱíÃüÁîÊä³öµÄÖµÓ¦´óÓÚ»òµÈÓÚ½¨ÒéÖµ¡£
¼ì²éÏîÄ¿
ÃüÁî ......

ÊìÁ·OracleµÄSqlÓï¾ä±Ø×ö18µÀ

 Ê¹ÓÃscott/tigerÓû§ÏµÄemp±íºÍdept±íÍê³ÉÏÂÁÐÁ·Ï°£¬±íµÄ½á¹¹ËµÃ÷ÈçÏÂ
empÔ±¹¤±í(empnoÔ±¹¤ºÅ/enameÔ±¹¤ÐÕÃû/job¹¤×÷/mgrÉϼ¶±àºÅ/hiredateÊܹÍÈÕÆÚ/salн½ð/commÓ¶½ð/deptno²¿ÃűàºÅ)
dept²¿Ãűí(deptno²¿ÃűàºÅ/dname²¿ÃÅÃû³Æ/locµØµã)
¹¤×Ê £½ н½ð £« Ó¶½ð
1£®ÁгöÖÁÉÙÓÐÒ»¸öÔ±¹¤µÄËùÓв¿ÃÅ
2£®Áгöн½ð±È& ......

Oracle 10g StatisticÊý¾Ýͳ¼Æ

http://www.ej38.com/showinfo/Oracle-108709.html
 Oracle 10g statisticÊý¾Ýͳ¼Æ,Oracle»á¸ù¾ÝÕâЩͳ¼ÆÐÅÏ¢À´¾ö¶¨ÊÇ×ßRBO(Rule-BasedOptimization)£¬»¹ÊÇ×ßCBO(Cost-BasedOptimization)£¬»áȥѡÔñÄÄÖÖÖ´Ðмƻ®¸ü»®Ëã,Ó°ÏìÊÇ·ñ×ßÏà¹ØµÄË÷ÒýµÈ.Èç¹ûÊÇCBOµÄ»°£¬ËüÒÀ¿¿×¼È·µÄ£¨»òÕß˵±È½Ï׼ȷµÄ£©Í³¼ÆÐÅÏ¢À´²úÉúÓÅ»¯µÄÖ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ