oracleÖÐÎÄ×Ö¶ÎÌæ»»»Ø³µ
Q£ºÎҵıíÖÐÓÐÒ»¸ö×Ö¶ÎÊÇvarchar2(4000) £¬ÆäÖд洢Á˲»ÉÙÖÐÎÄ£¬ÏÖÔÚÓÉÓÚÅŰæÐèÒª£¬ÎÒÏëÕÒ³öº¬Óлسµ·ûµÄ¼Ç¼ɾ³ý»Ø³µ·û£¬ÇëÎʸßÊÖSQLÓï·¨Ôõôд£¿
A£ºOracleÖлسµ·ûÊÇchr(10),¿ÉÒÔʹÓú¯Êýreplace(×Ö¶Î,chr(10),'')
È磺 update x set a=replace(a,chr(10),'')¡£
º¯Êý£º
1.CHR
¸ø³öÕûÊý,·µ»Ø¶ÔÓ¦µÄ×Ö·û;
SQL> select chr(54740) zhao,chr(65) chr65 from dual; <!--DVNEWS_AD_BEGIN-->
ZH C
-- -
ÕÔ A
2.REPLACE('string','s1','s2')
string Ï£Íû±»Ìæ»»µÄ×Ö·û»ò±äÁ¿
s1 ±»Ìæ»»µÄ×Ö·û´®
s2 ÒªÌæ»»µÄ×Ö·û´®
SQL> select replace('he love you','he','i') from dual;
REPLACE('HELOVEYOU','HE','I')
------------------------------
i love you
PS£ºchr£¨13£©»Ø³µ£¬ chr(10)ÊÇ»»ÐУ¬13Óë10¶¼ÊÇASCÂ룬ÆäËûµÄ¿ÉÒÔ²éѯASCÂë±í
Ïà¹ØÎĵµ£º
Ò»¡¢ ³£ÓÃÈÕÆÚÊý¾Ý¸ñʽ
1.Y»òYY»òYYY ÄêµÄ×îºóһ룬Á½Î»»òÈýλ
SQL> Select to_char(sysdate,'Y') from dual;
TO_CHAR(SYSDATE,'Y')
--------------------
7
SQL> Select to_char(sysdate,'YY') from dual;
TO_CHAR(SYSDATE,'YY')
---------------------
07
SQL> Select to_char(sysdate,'YYY') from ......
2010Äê5ÔÂ25ÈÕ ¸»Ê¿¿µ11ÌøÂ¥×ÔɱµÄÕâÌì¡£´«ÎÅoracle 10g r203×Ô¶¯·ÖÎö×÷Òµ²»ÊǺܿ¿Æ×,¾ßÌåΪʲô²»µÃ¶øÖª£¡½ñÌìÀÏ¿âµÄ»úÆ÷Òª±»°á×ߣ¬¿´µ½ÉÏÃæÓиöĿ¼ÊÇDBAµ¼Êý¾Ý¶øÓõ쬻¹Áô×ÅÀÏ¿âǨµ½Ð¿âµÄDMPÊý¾ÝÎļþ309G¡£ÏëÀÏ¿âÕæÕýÓõ½µÄ±í±È½ÏÉÙ£¬Êý¾ÝÁ¿»áСºÜ¶à¡£ÎªÁËÖªµÀ¾ßÌåÁ¿£¬ËùÒÔ×Ô¼ºÊÔÍæÏÂEXPµ¼Êý¾Ý¡£ÏÈÊÔÁËÏÂÓû§±í590Íò1. ......
ÿ¸öOracleÓû§¶¼ÓÐÒ»¸öÃû×ֺͿÚÁî,²¢ÓµÓÐһЩÓÉÆä´´½¨µÄ±í¡¢ÊÓͼºÍÆäËû×ÊÔ´¡£Oracle½ÇÉ«£¨role£©¾ÍÊÇÒ»×éȨÏÞ£¨privilege£©(»òÕßÊÇÿ¸öÓû§¸ù¾ÝÆä״̬ºÍÌõ¼þËùÐèµÄ·ÃÎÊÀàÐÍ)¡£Óû§¿ÉÒÔ¸ø½ÇÉ«ÊÚÓè»ò¸³ÓèÖ¸¶¨µÄȨÏÞ£¬È»ºó½«½ÇÉ«¸³¸øÏàÓ¦µÄÓû§¡£Ò»¸öÓû§Ò²¿ÉÒÔÖ±½Ó¸øÆäËûÓû§ÊÚȨ¡£
Êý¾Ý¿âϵͳȨÏÞ£¨Dat ......
ÔÚ¶ÔÊý¾Ý¿â½øÐвÙ×÷¹ý³ÌÖÐÎÒÃÇ¿ÉÄÜ»áÓöµ½ÕâÖÖÇé¿ö£¬±íÖеÄÊý¾Ý¿ÉÄÜÖØ¸´³öÏÖ£¬Ê¹ÎÒÃǶÔÊý¾Ý¿âµÄ²Ù×÷¹ý³ÌÖдøÀ´ºÜ¶àµÄ²»±ã£¬ÄÇôÔõôɾ³ýÕâÐ©ÖØ¸´Ã»ÓÐÓõÄÊý¾ÝÄØ?
¡¡¡¡Öظ´Êý¾Ýɾ³ý¼¼Êõ¿ÉÒÔÌṩ¸ü´óµÄ±¸·ÝÈÝÁ¿£¬ÊµÏÖ¸ü³¤Ê±¼äµÄÊý¾Ý±£Áô£¬»¹ÄÜʵÏÖ±¸·ÝÊý¾ÝµÄ³ÖÐøÑéÖ¤£¬Ìá¸ßÊý¾Ý»Ö¸´·þÎñˮƽ£¬·½±ãʵÏÖÊý¾ÝÈÝÔֵȡ£ ÖØ¸´µÄÊý¾ ......