sqlȨÏÞ
sqlȨÏÞ:
´´½¨User:
insert into mysql.user(Host,User,Password)
values("localhost","cordev",password("xasoftorg"));
insert into
mysql.user(Host,User,Password)
values("localhost","corhotfix",password("xasoftorg"));
insert into
mysql.user(Host,User,Password)
values("localhost","corint",password("xasoftorg"));
¸³ÓèȨÏÞ£º
grant
all privileges on cordev.* to cordev identified by 'xasoftorg';
grant
all privileges on corhotfix.* to corhotfix identified by 'xasoftorg';
grant
all privileges on corint.* to corint identified by 'xasoftorg';
Ë¢ÐÂ:
flush
privileges;
Óû§È¨ÏÞ
ÉèÖÃ
¡¡¡¡1¡¢ÒÔroot£¨Ò²¿ÉÓÃÆäËüÓÐȨÏÞµÄÓû§£©Éí·ÝµÇ¼
¡¡¡¡2¡¢
ÏÂÃæ´´½¨Ò»¸ötestÓû§£¬ÃÜÂëΪtest£¬²¢ÇÒÖ»ÄܶÔpictureÊý¾Ý¿â½øÐвÙ×÷µÄÃüÁî
¡¡¡¡¡¡¡¡mysql>GRANT ALL ON
picture.* TO test IDENTIFIED BY "test";
¡¡¡¡GRANTÓï¾äµÄÓï·¨¿´ÉÏÈ¥ÏñÕâÑù£º
¡¡
¡¡GRANT privileges (columns) ON what TO user IDENTIFIED BY "password"
WITH GRANT OPTION¡¡
ҪʹÓøÃÓï¾ä£¬ÄãÐèÒªÌîдÏÂÁв¿·Ö£º
¡¡¡¡privileges
ÊÚÓèÓû§µÄȨÏÞ£¬Ï±íÁгö¿ÉÓÃÓÚGRANTÓï¾äµÄȨÏÞÖ¸¶¨·û£º
¡¡È¨ÏÞÖ¸¶¨·û ȨÏÞÔÊÐíµÄ²Ù×÷
¡¡¡¡Alter
¡¡¡¡¡¡¡¡¡¡¡¡Ð޸ıíºÍË÷Òý
¡¡¡¡Create ¡¡¡¡¡¡¡¡ ´´½¨Êý¾Ý¿âºÍ±í
¡¡¡¡Delete ¡¡¡¡¡¡¡¡ ɾ³ý±íÖÐÒÑÓеļǼ
¡¡
¡¡Drop ¡¡¡¡ Åׯú£¨É¾³ý£©Êý¾Ý¿âºÍ±í
¡¡¡¡INDEX ¡¡¡¡¡¡¡¡ ´´½¨»òÅׯúË÷Òý
¡¡¡¡Insert ¡¡¡¡¡¡¡¡ Ïò±íÖвåÈëÐÂÐÐ
¡¡
¡¡REFERENCE ¡¡¡¡Î´ÓÃ
¡¡¡¡Select¡¡¡¡¡¡¡¡ ¼ìË÷±íÖеļǼ
¡¡¡¡Update ¡¡¡¡¡¡¡¡ ÐÞ¸ÄÏÖ´æ±í¼Ç¼
¡¡
¡¡FILE ¡¡¡¡¡¡¡¡¡¡¡¡¶Á»òд·þÎñÆ÷ÉϵÄÎļþ
¡¡¡¡PROCESS ¡¡¡¡ ²é¿´·þÎñÆ÷ÖÐÖ´ÐеÄÏß³ÌÐÅÏ¢»òɱËÀÏß³Ì
¡¡¡¡RELOAD
¡¡¡¡¡¡¡¡ÖØÔØÊÚȨ±í»òÇå¿ÕÈÕÖ¾¡¢Ö÷»ú»º´æ»ò±í»º´æ¡£
¡¡¡¡SHUTDOWN¡¡¡¡ ¹Ø±Õ·þÎñÆ÷
¡¡¡¡ALL ¡¡¡¡¡¡¡¡¡¡¡¡ËùÓУ»ALL
PRIVILEGESͬÒå´Ê
¡¡¡¡USAGE ¡¡¡¡¡¡¡¡ÌØÊâµÄ“ÎÞȨÏޔȨÏÞ
Ìí¼ÓϵͳÓû§:
adduser
oracle
passwd oracle
solar:/home# rm -r oracle
solar:/home# cp
-r mhung oracle
solar:/home# chown -R oracle oracle
solar:/home#
rm -r oracle
solar:
Ïà¹ØÎĵµ£º
Õû¸öSQLºÍAsp.net(vb.net)Ò»Æð´ò°üµÄÈ«¹ý³ÌдһÏ¡£
Ò».×¼±¸±ØÒªµÄÎļþ
1. SQL½Å±¾Îļþ£¬Éú³ÉÒÔºó°²×°¹ý³ÌÖÐÐèÒªµÄ±íºÍ´æ´¢¹ý³ÌµÈµÈ£»
Éú³ÉÖ®ºó£¬¾ÍÔÝʱ°ÑËüÃüÃûΪdb.sql(×¢Òâ´óСд)
2.LisenceFile.rtfµÄ°²×°Îļþ£¬ÒòΪÎÒµÄϵͳÊǸöÈ˵쬶øÇÒfreeµÄ£¬ËùÒÔ¾ÍûÓÐ×ö¡£Õâ¸öÒÔºóÒ²ÊÇÒªÓõ½µÄ¡£
¶þ.ÔÚ×Ô¼ºÏÖÓеÄÏîÄ¿Àïà ......
.errInfo
{
border:solid 1px #d00;
background:#F7F0F7;
}
1.URLµØÖ··À×¢È룺
//¹ýÂËURL·Ç·¨SQL×Ö·û
var sUrl=location.search.toLowerCase();
var sQuery=sUrl.substring(sUrl.indexOf("=")+1);
re=/select|update|delete|truncate|join|union|exec|insert|drop|count|&r ......
SQLÖÐround£¨£©º¯ÊýÓ÷¨
SQL round()Ïê½â
roundÓÐÁ½¸öÖØÔØ,Ò»¸öÓдøÓÐÁ½¸ö²ÎÊýµÄ,Ò»¸öÊÇ´øÓÐÈý¸ö²ÎÊýµÄ,
ÿһ¸ö²ÎÊý¶¼ÏàͬÊÇÒª´¦ÀíµÄÊý,
1.´øÓÐÁ½¸ö²ÎÊý.ÿ¶þ¸ö²ÎÊýÊÇСÊýµãµÄ×ó±ßµÚ¼¸Î»»òÓұߵڼ¸Î»,·Ö±ðÓÃÕý¸º±íʾ.×ó±ßΪ¸º,ÓÒ±ßΪ¸º.ΪËÄÉáÎåÈë.
select round(748.585929,-1) 750.000000
select round(748.58592 ......
¡¡UNIONÖ¸ÁîµÄÄ¿µÄÊǽ«Á½¸öSQLÓï¾äµÄ½á¹ûºÏ²¢ÆðÀ´¡£´ÓÕâ¸ö½Ç¶ÈÀ´¿´£¬ ÎÒÃÇ»á²úÉúÕâÑùµÄ¸Ð¾õ£¬UNION¸úJOINËÆºõÓÐЩÐíÀàËÆ£¬ÒòΪÕâÁ½¸öÖ¸Áî¶¼¿ÉÒÔÓɶà¸ö±í¸ñÖÐߢȡ×ÊÁÏ¡£ UNIONµÄÒ»¸öÏÞÖÆÊÇÁ½¸ö SQL Óï¾äËù²úÉúµÄÀ¸Î»ÐèÒªÊÇͬÑùµÄ×ÊÁÏÖÖÀà¡£ÁíÍ⣬µ±ÎÒÃÇÓà UNIONÕâ¸öÖ¸Áîʱ£¬ÎÒÃÇÖ»»á¿´µ½²»Í¬µÄ×ÊÁÏÖµ (ÀàËÆ SELECT DISTINCT) ......
What Is SQL?
SQL (pronounced as the letters S-Q-L or as sequel) is an abbreviation for Structured Query Language. SQL is a language designed specifically for communicating with databases.
Unlike other languages (spoken languages like English, or programming languages like Java or Visual Basic), SQ ......