µÚÒ»ÖÖ:²éSlow queryµÄSQLÓï·¨:
log_slow_queries = /var/log/mysql/mysql-slow.log
long_query_time = 2 (³¬¹ý2ÃëµÄSQLÓï·¨¼Ç¼ÆðÀ´,Éè¶ÌÒ»µãÀ´¼Ç¼³ý´íÒ²ÊÇÒ»ÖÖ·½·¨.)
µÚ¶þÖÖ:ÉèMySQL ReplicationÓÃbinlog:
log_bin = /var/log/mysql/mysql-bin.log (´ËµµÒªÓÃmysqlbinlog½âÀ´¿´£¬
mysqlbinlog mysql-bin.000042| grep "T_ABC" | grep "column value"
)
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log = /tmp/mysql.log
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C:\mysql\bin>mysqldump -uroot -p -c -Q --add-drop-table --default-character-set=gb2312 ipmngr > D:\db20100525backup.sql
Enter password:£¨ÊäÈëÃÜÂëÒ»°ãÃÜÂëΪ¿ÕÖ±½Ó»Ø³µ¼´¿É£©
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net stop mysql
net start mysql
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¸ñʽ£ºgrant ȨÏÞ on Êý¾Ý¿â.* to Óû§Ãû@µÇ¼Ö÷»ú identified by "ÃÜÂë"
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grant select,insert,update,delete on *.* to user1@localhost Identified by "password1";
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grant select,insert,update,delete on mydb.* to user1@localhost identified by "";
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show databases;
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/*clear fastload tables*/
%let gdw_dir =( user="XXXXX" password="XXXXX" database="XXXXX" tdpid="XXXXX");
proc sql;
connect to teradata as TD &gdw_dir;
execute (drop table STG_MYSQL_lkp_verticals)
by TD;
execute (commit) by TD;
disconnect from TD;
quit;
proc sql;
connect to teradata as TD &gdw_dir;
execute (drop table append_err1)
by TD;
execute (commit) by TD;
disconnect from TD;
quit;
proc sql;
connect to teradata as TD &gdw_dir;
execute (drop table append_err2)
by TD;
execute (commit) by TD;
disconnect from TD;
quit;
proc sql;
connect to teradata as TD &gdw_dir;
execute
(
create table STG_MYSQL_lkp_verticals
(
vertical varchar(10),
category_id integer,
category_name varchar(70),
short_name varchar(70)
)primary index ......
1. Á¬½Ómysql:
mysqlbinmysql -hÖ÷»úµØÖ· -u Óû§Ãû £p Óû§ÃÜÂë
2.Í˳ömysql:exit
3. ÐÞ¸ÄÃÜÂë:
mysqlbinmysqladmin -uroot -p(oldpassword) password newpassword
4.Ôö¼ÓÓû§£º
Ìí¼ÓÒ»¸öÓû§test1 ÃÜÂëΪABC£»ÈÃËû¿ÉÒÔÔÚÈκÎÖ÷»úÉϵǼ,²¢¶ÔËùÓÐÊý¾Ý¿âÓвéѯ¡¢²åÈë¡¢Ð޸ġ¢É¾³ýµÄȨÏÞ¡£Ê×ÏÈÓÃÒÔrootÓû§Á¬Èë
mysql,È»ºó¼üÈëÒÔÏÂÃüÁgrant select,insert,update,delete on *.* to test1@"%" Identified
by "abc";
Ôö¼ÓÒ»¸öÓû§test2ÃÜÂëΪabc,ÈÃÆäÖ»¿ÉÒÔÔÚlocalhostÉϵǼ,²¢¿ÉÒÔ¶ÔÊý¾Ý¿âmydb½øÐвéѯ¡¢²åÈë¡¢Ð޸ġ¢É¾³ýµÄ²Ù×÷£¨localhostÖ¸±¾µØ
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À´·ÃÎÊÁË¡£grant select,insert,update,delete on mydb.* to test2@localhost identified by "abc";
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grant all privileges on *.* to test3@"%" identified by 'password' with grant option;
5.ɾ³ýÊÚȨ
revoke select,insert,update,delete om *.* from test2@localhost ;
-------------------------------------- ......