ORACLEÖÐËÑË÷×ÖĸÊý×Ö»ìºÏµÄ×Ö·û´®
SQL> with tt as
2 (
3 select 'haha' string from dual union
4 select '123' from dual union
5 select 'haha12' from dual union
6 select 'haha[]' from dual union
7 select '12@@' from dual union
8 select 'ah@!123' from dual
9 )
10 select string
11 from
12 (
13 select string,translate(
14 string,'abcdefghijklmnopqrstuvwxyz0987654321',
15 rpad('#',26,'#')||rpad('*',10,'*')
16 )
17 translated from tt
18 )
19 where instr(translated,'#') > 0
20 and instr(translated,'*') > 0;
STRING
-------
ah@!123
haha12
Æäʵ¾ÍÊÇͨ¹ýtranslateº¯Êý°ÑËùÓÐ×ÖĸºÍÊý×ֱ任³ÉÁ½ÖÖͳһµÄ×Ö·û£¬ÉÏÀýÖÐÊǰÑ×Öĸ±äΪ#£¬Êý×Ö±äΪ*£¬½Ó×ÅÔÙÍâ²ãselectµÄwhere×Ó¾äÖжÔת»»ºóµÄ×Ö·û´®½øÐÐÅжϣ¬Èç¹ûÁ½Õß¶¼´óÓÚ0£¬Ò²¾Í˵¼ÈÓÐ×ÖĸҲÓÐÊý×Ö£¬ÄÇô¾ÍûÎÊÌâÁË¡£
Ïà¹ØÎĵµ£º
ÔÚORACLE Êý¾Ý¿âµÄ¿ª·¢»·¾³ºÍ²âÊÔ»·¾³ÖУ¬Êý¾Ý¿âµÄÈÕ־ģʽºÍ×Ô¶¯¹éµµÄ£Ê½Ò»°ã¶¼ÊDz»ÉèÖõģ¬ÕâÑùÓÐÀûÓÚϵͳӦÓõĵ÷Õû£¬Ò²ÃâµÄÉú³É´óÁ¿µÄ¹éµµÈÕÖ¾Îļþ½«´ÅÅ̿ռä´óÁ¿µÄÏûºÄ¡£µ«ÔÚϵͳÉÏÏߣ¬³ÉΪÉú²ú»·¾³Ê±£¬½«ÆäÉèÖÃΪÈÕ־ģʽ²¢×Ô¶¯¹éµµ¾ÍÏàµ±ÖØÒªÁË£¬ÒòΪ£¬ÕâÊDZ£Ö¤ÏµÍ³µÄ°²È«ÐÔ£¬ÓÐЧԤ·ÀÔÖÄѵÄÖØÒª´ëÊ©¡£ÕâÑù£¬Í¨¹ý¶¨Ê ......
SQLÖеĵ¥¼Ç¼º¯Êý
1.ASCII
·µ»ØÓëÖ¸¶¨µÄ×Ö·û¶ÔÓ¦µÄÊ®½øÖÆÊý;
SQL> select ascii('A') A,ascii('a') a,ascii('0') zero,ascii(' ') space from dual;
A A ZERO ......
±í´Ø£¨table cluster)ÊÇÒ»¸öÊý¾Ý¿â¶ÔÏó£¬Ëü¿ÉÒÔ½«ÄÇЩ¾³£ÔÚÏàͬÊý¾Ý¿éÖÐÒ»ÆðʹÓÃµÄ±í½øÐÐÎïÀí·Ö×é¡£µ±Äã´¦ÀíÄÇЩ¾³£Á¬½ÓÔÚÒ»Æð½øÐвéѯµÄ±íʱ£¬±í´ØÊÇÌØ±ðÓÐЧµÄ¡£Ò»¸ö±í´Ø´æ´¢´Ø¼ü£¨ÓÃÓÚ½«±íÁ¬½Óµ½Ò»ÆðµÄÁУ©£¬ÒÔ¼°´Ø±íÖеÄÁÐÖµ¡£ÒòΪ´ØÖÐµÄ±í¶¼±»´¢´æÔÚÏàͬµÄÊý¾Ý¿â¿éÖУ¬ËùÒÔʹÓôع¤×÷ʱ£¬I/O²Ù×÷¾Í¼õÉÙÁË¡£
......
1¡¢Ð½¨PDM.ÓÒ»÷Workspace->New->Free Model->Physical Data Model
2¡¢Model nameÈÎÒâ, DBMS=>ORACLE Version 9i2->È·¶¨
3¡¢ÅäÖÃODBC
¿ØÖÆÃæ°å->¹ÜÀí¹¤¾ß->Êý¾ÝÔ´(ODBC)->ϵͳDSN->Ìí¼Ó,Èç¹ûÓÐ×°ÍêÕûµÄOracle¿Í»§¶Ë»á³öÏÖרÃŵÄÇý¶¯,ÎÒµÄÊǼò°æµÄ¾ÍÑ¡
"Microsoft ODBC for Oracl ......
Êý¾Ý¿âÊÇÒ»¸ö¶àÓû§Ê¹ÓõĹ²Ïí×ÊÔ´¡£µ±¶à¸öÓû§²¢·¢µØ´æÈ¡Êý¾Ýʱ£¬ÔÚÊý¾Ý¿âÖоͻá²úÉú¶à¸öÊÂÎñͬʱ´æÈ¡Í¬Ò»Êý¾ÝµÄÇé¿ö¡£Èô¶Ô²¢·¢²Ù×÷²»¼Ó¿ØÖƾͿÉÄÜ»á¶ÁÈ¡ºÍ´æ´¢²»ÕýÈ·µÄÊý¾Ý£¬ÆÆ»µÊý¾Ý¿âµÄÒ»ÖÂÐÔ¡£
¼ÓËøÊÇʵÏÖÊý¾Ý¿â²¢·¢¿ØÖƵÄÒ»¸ö·Ç³£ÖØÒªµÄ¼¼Êõ¡£µ±ÊÂÎñÔÚ¶Ôij¸öÊý¾Ý¶ÔÏó½øÐвÙ×÷ǰ£¬ÏÈÏòϵͳ·¢³öÇëÇó£¬¶ÔÆä¼ÓËø¡£¼ÓËøº ......