Mysql whileÑ»·Óï¾äÉú³É²âÊÔÊý¾Ý
ʹÓÃwhileÑ»·Óï¾äÉú³É²âÊÔÊý¾Ý£º
ÏÂÃæµÄ·½·¨ÊÇͨ¹ý´´½¨Ò»¸ö´æ´¢¹ý³Ì£¬È»ºóÔÙµ÷ÓÃÕâ¸ö´æ´¢¹ý³ÌÀ´ÊµÏֵ쬴ÓÍøÉÏÕÒÁ˺ܶ෽·¨£¬µ«¶¼Ã»Óгɹ¦¡£
delimiter // /*¶¨ÒåÃüÁî½áÊø·ûĬÈÏΪ ; */
create procedure genUsers()
begin
declare i int default 0;
while i < 40 do
insert into users(userID,userName,password) values(i,concat('username',i),concat('password',i));
set i = i + 1;
end while;
end
//
Éú³ÉÕâ¸ö´æ´¢¹ý³Ìºó£¬Ë¢ÐÂϾÍÄÜ¿´µ½£¬È»ºóÖ±½Óµ÷ÓþͿÉÒÔÁË¡£
call genUser();
×¢ÒâÒªÊǸô洢¹ý³ÌÒÑ´æÔڵϰ£¬Ò»¶¨ÒªÏÈɾ³ýÖ®ºóÔÙÉú³É¡£
Ïà¹ØÎĵµ£º
CENTOS 5µÄÐéÄâ»ú£¬Ôõô´ÓͼÐνçÃæÇл»µ½ÃüÁîÐнçÃæ
1.ÁÙʱÇл»£º
ctrl+alt+1 …… ctrl+alt+6Ò»¹²Áù¸ö¿ØÖÆÌ¨¡£
2.ÓÀ¾Ã¹Ø±ÕͼÐλ¯£º
ÔÚrootÏÂÊäÈë vi /etc/inittab ½«init:5ÐÞ¸ÄΪinit:3
Mysql rpm°ü°²×°£¬²»ÄÜÖØ¶¨Î»(relocatable)
rpm°ü°²×°Òì³££¬--prefix ²ÎÊý²»ÄÜÖØ¶¨Î»£¬°²×°µ½ÁíÒ»¸öĿ¼µÄÔ ......
MySQLÊÖ²áÖп´µ½µÄ£¬¼Ç¼Ï¡£
MySQL¿ÉÒÔΪ¶à¸öÁд´½¨Ë÷Òý¡£Ò»¸öË÷Òý¿ÉÒÔ°üÀ¨15¸öÁС£¶ÔÓÚijЩÁÐÀàÐÍ£¬¿ÉÒÔË÷ÒýÁеÄǰ׺(²Î¼û7.4.3½Ú£¬“ÁÐË÷Òý”)¡£
¶àÁÐË÷Òý¿ÉÒÔÊÓΪ°üº¬Í¨¹ýÁ¬½ÓË÷ÒýÁеÄÖµ¶ø´´½¨µÄÖµµÄÅÅÐòµÄÊý×é¡£
MySQL°´ÕâÑùµÄ·½Ê½Ê¹Óöà ......
ÔÚÏò´ó¼ÒÏêϸ½éÉÜLinux mysql֮ǰ£¬Ê×ÏÈÈôó¼ÒÁ˽âÏÂLinux mysql£¬È»ºóÈ«Ãæ½éÉÜLinux mysql£¬Ï£Íû¶Ô´ó¼ÒÓÐÓá£
1. Linux mysql°²×°£º
$ yum install mysql-server
2. Linux mysqlÐÞ¸ÄrootÃÜÂ룺
$ mysqladmin -u root password
your_new_passwd
3. Æô¶¯Linux mysql·þÎñ
$ /etc/init.d/mysqld start
4. Ìí¼ÓΪϵͳ· ......
³£¼ûµÄMySQLÃüÁî´óÈ«
Ò»¡¢Á¬½ÓMySQL
¸ñʽ£º mysql -hÖ÷»úµØÖ· -uÓû§Ãû £pÓû§ÃÜÂë
1¡¢Àý1£ºÁ¬½Óµ½±¾»úÉϵÄMYSQL¡£
Ê×ÏÈÔÚ´ò¿ªDOS´°¿Ú£¬È»ºó½øÈëĿ¼ mysqlbin£¬ÔÙ¼üÈëÃüÁîmysql ......
1¡¢°²×°Ä¿Â¼:
½«my.iniÖÐ:
datadirµÄÖµ¸ü¸ÄΪ£º"sql/data/"
basedirµÄÖµ¸ü¸ÄΪ£º"sql"
2¡¢½øÈësql/data/"£¬É¾³ýÎļþ¼ÐÍâµÄËùÓÐÎļþ¡£
net start mysql»Ø³µ……
×¢ÒâбÏß/
ÐÞ¸Äpswd
·½·¨1£ºmysqladmin -u root -p "old password" "new password" (´ËÃüÁîÎÞ·¨°ÑÃØÃÜÇå¿Õ)
·½·¨2£º ......