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

MysqlÖд´½¨Óû§ÕÊ»§µÄ·½·¨

1.CREATE USER
CREATE USER user [IDENTIFIED BY [PASSWORD] 'password']
    [, user [IDENTIFIED BY [PASSWORD] 'password']] ...
CREATE USERÓÃÓÚ´´½¨ÐµÄMySQLÕË»§¡£ÒªÊ¹ÓÃCREATE USER£¬Äú±ØÐëÓµÓÐmysqlÊý¾Ý¿âµÄÈ«¾ÖCREATE USERȨÏÞ£¬»òÓµÓÐINSERTȨÏÞ¡£¶ÔÓÚÿ¸öÕË»§£¬CREATE USER»áÔÚûÓÐȨÏÞµÄmysql.user±íÖд´½¨Ò»¸öмǼ¡£Èç¹û ÕË»§ÒѾ­´æÔÚ£¬Ôò³öÏÖ´íÎó¡£
ʹÓÃ×ÔÑ¡µÄIDENTIFIED BY×Ӿ䣬¿ÉÒÔΪÕË»§¸ø¶¨Ò»¸öÃÜÂë¡£userÖµºÍ ÃÜÂëµÄ¸ø¶¨·½·¨ºÍGRANTÓï¾äÒ»Ñù¡£ÌرðÊÇ£¬ÒªÔÚ´¿Îı¾ÖÐÖ¸¶¨ÃÜÂ룬ÐèºöÂÔPASSWORD¹Ø¼ü´Ê¡£Òª°Ñ ÃÜÂëÖ¸¶¨ÎªÓÉPASSWORD()º¯Êý·µ»ØµÄ»ì±àÖµ£¬Ðè°üº¬¹Ø¼ü×ÖPASSWORD¡£
2.ʹÓÃGRANTÓï¾ä
×îºÃµÄ·½·¨ÊÇʹÓÃGRANTÓï¾ä£¬ÒòΪÕâÑù¸ü¾«È·£¬´íÎóÉÙ¡£´ÓMySQL 3.22.11ÆðÌṩÁËGRANT£»ËüµÄÖ÷ÒªÓÃ;ÊÇÀ´¸øÕÊ»§ÊÚȨµÄ£¬µ«Ò²¿ÉÓÃÀ´½¨Á¢ÐÂÕÊ»§²¢Í¬Ê±ÊÚȨ¡£×¢Ò⣺µ±mysqlÔËÐÐÓÚno_auto_create_userʱҪÌṩн¨Óû§µÄÃÜÂ룬·ñÔò²»ÄÜ´´ÐÂÓû§¡£
ÏÂÃæµÄʾÀý˵Ã÷ÈçºÎʹÓÃMySQL¿Í»§¶Ë³ÌÐòÀ´ÉèÖÃÐÂÓû§¡£
Ê×ÏÈ£¬Ê¹ÓÃMySQL³ÌÐòÒÔMySQL rootÓû§À´Á¬½Ó·þÎñÆ÷£º
shell> MySQL --user=root MySQL
Èç¹ûÄãΪrootÕË»§Ö¸¶¨ÁËÃÜÂ룬»¹ÐèҪΪ¸ÃMySQLÃüÁîºÍ±¾½ÚÖеÄÆäËüÃüÁîÌṩ--password»ò-pÑ¡Ïî¡£
ÒÔrootÁ¬½Óµ½·þÎñÆ÷ÉϺ󣬿ÉÒÔÌí¼ÓÐÂÕË»§¡£ÏÂÃæµÄÓï¾äʹÓÃGRANTÀ´ÉèÖÃËĸöÐÂÕË»§£º
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost'
    ->     IDENTIFIED BY 'some_pass' WITH GRANT OPTION;
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%'
    ->     IDENTIFIED BY 'some_pass' WITH GRANT OPTION;
mysql> GRANT RELOAD,PROCESS ON *.* TO 'admin'@'localhost';
mysql> GRANT USAGE ON *.* TO 'dummy'@'localhost';
ÓÃGRANTÓï¾ä´´½¨µÄÕË»§ÓÐÏÂÃæµÄÊôÐÔ£º
·         ÆäÖÐÁ½¸öÕË»§ÓÐÏàͬµÄÓû§ÃûmontyºÍÃÜÂësome_pass¡£Á½¸öÕË»§¾ùΪ³¬¼¶Óû§ÕË»§£¬¾ßÓÐÍêÈ«µÄȨÏÞ¿ÉÒÔ×öÈκÎÊÂÇé¡£Ò»¸öÕË»§ ('monty'@'localhost')Ö»ÓÃÓÚ´Ó±¾»úÁ¬½Óʱ¡£ÁíÒ»¸öÕË»§('monty'@'%')¿ÉÓÃÓÚ´ÓÆäËüÖ÷»úÁ¬½Ó¡£Çë×¢ÒâmontyµÄÁ½¸öÕË»§±ØÐëÄÜ´ÓÈκÎÖ÷»úÒÔmontyÁ¬½Ó¡£Ã»ÓÐlocalhostÕË»§£¬µ±monty´Ó±¾»úÁ¬½Óʱ£¬mysql_install_db´´½¨µÄlocalhostµÄÄäÃûÓû§ÕË»§½«Õ¼ÏÈ¡£½á¹ûÊÇ£¬monty½«±»


Ïà¹ØÎĵµ£º

MySQL´æ´¢ÒýÇæ±È½Ï

MySQL³£ÓõĴ洢ÒýÇæΪMyISAM¡¢InnoDB¡¢MEMORY¡¢MERGE£¬ÆäÖÐInnoDBÌṩÊÂÎñ°²È«±í£¬ÆäËû´æ´¢ÒýÇ涼ÊÇ·ÇÊÂÎñ°²È«±í¡£ 
MyISAMÊÇMySQLµÄĬÈÏ´æ´¢ÒýÇæ¡£MyISAM²»Ö§³ÖÊÂÎñ¡¢Ò²²»Ö§³ÖÍâ¼ü£¬µ«Æä·ÃÎÊËٶȿ죬¶ÔÊÂÎñÍêÕûÐÔûÓÐÒªÇó¡£ 
InnoDB´æ´¢ÒýÇæÌṩÁ˾ßÓÐÌá½»¡¢»Ø¹öºÍ±ÀÀ£»Ö¸´ÄÜÁ¦µÄÊÂÎñ°²È«¡£µ«ÊDZÈÆðMyISAM´æ´ ......

MySqlÊý¾Ý¿âµÄÁÐÀàÐÍ£¨×Ö¶ÎÀàÐÍ)

MySqlÊý¾Ý¿âµÄÁÐÀàÐÍ£¨×Ö¶ÎÀàÐÍ)
MySQLÊý¾Ý¿âµÄ±íÊÇÒ»¸ö¶þά±í£¬ÓÉÒ»¸ö»ò¶à¸öÊý¾ÝÁй¹³É¡£
ÿ¸öÊý¾ÝÁж¼ÓÐËüµÄÌض¨ÀàÐÍ£¬¸ÃÀàÐ;ö¶¨ÁËMySQLÈçºÎ¿´´ý¸ÃÁÐÊý¾Ý£¬ÎÒÃÇ¿ÉÒÔ°ÑÕûÐÍÊýÖµ´æ·Åµ½×Ö·ûÀàÐ͵ÄÁÐÖУ¬MySQLÔò»á°ÑËü¿´³É×Ö·û´®À´´¦Àí¡£
MySQLÖеÄÁÐÀàÐÍÓÐÈýÖÖ£ºÊýÖµÀà¡¢×Ö·û´®ÀàºÍÈÕÆÚ/ʱ¼äÀà¡£
´Ó´óÀàÀ´¿´ÁÐÀàÐͺÍÊýÖ ......

java¿ª·¢ÖÐMysqlÖÐÎÄÂÒÂëÎÊÌâµÄ½â¾ö

     MysqlÔÚĬÈÏÇé¿öϽ¨Á¢±íµÄ×Ö·û±àÂëÊÇlatin1£¬ËùÒÔÔÚ²åÈëÖÐÎÄʱ»á³ö´í¡£
eg£º
1¡¢²é¿´±í½¨Á¢µÄsqlÔ´Â룺
1: sqlÃüÁshow create table users
2:
3: ½á¹û£º
4: CREATE TABLE `users` (
5: `userID` int(10) unsigned NOT NULL AUTO_INCREMENT,
6: `userName` varchar(4 ......

C# Á¬½ÓMySqlµÄ·½·¨


1.´Óhttp://prdownloads.sourceforge.net/mysqldrivercs/MySQLDriverCS-n-EasyQueryTools-3.0.18.exe?downloadÉÏÏÂÔØMySQLDriverCS. 
2.°ÑMySQLDriverCS.dll.Ìí¼Óµ½.netµÄ×é¼þ 
3.ʹÓ÷½·¨ 
 ÏÂÃæÊÇ´´½¨Ò»¸öÊý¾Ý¿âÁ´½Ó:
ÏÂÃæÊÇ´´½¨Ò»¸öÊý¾Ý¿âÁ´½Ó:
using MySQLDriverCS;
MySQLConnection conn ......

mysql²é¿´Êý¾Ý¿â´óС£¬Ë÷Òý´óС

mysql> use information_schema
Database changed
mysql> select concat(round(sum(index_LENGTH)/(1024*1024),2),'MB') as 'Data Size' from tables where table_schema='bbs';
+-----------+
| Data Size |
+-----------+
| 0.00MB    |
+-----------+
1 row in set (0.01 sec)
½âÊÍ£º
......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ