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Showing posts from July, 2009

MySQL Commands - Adding User, Backup and Restore

Adding new user to access the database Syntax: mysqldump -u [username] -p [password] [databasename] > [backupfile.sql] Examples: mysql> GRANT all ON mydatabase.* TO myuser@'192.168.17.186' IDENTIFIED BY 'mypassword'; mysql> GRANT all ON mydatabase.* TO myuser@'localhost' IDENTIFIED BY 'mypassword'; mysql> FLUSH PRIVILEGES; Making Backup of the Database Syntax: mysqldump -u[mysqluser] -p[password] [databasename] > [destinationfile.sql] Example: $ mysqldump -utestaccount -pg3pass employeefile > employeefile-dump.sql Restoring MySQL Database $ mysql -uaccount -ppassword employeefile < employeefile-dump.sql Making Backup of the existing Table Syntax: create table <Table Destination> as select * from <Table Source>; Example: create table RADUSAGE_09082009 as select * from RADUSAGE;

Killing a Process in Linux

At times we encounter java process that won't stop by issuing the usual command "./shutdown.sh", or in some cases a multiple instance was created when the program was not properly restarted. Below are the sample process status of the java in my linux box. [root@geone bin]# ps -eaf | grep java root 27272 1 0 Jul06 ? 00:00:22 /usr/java/j2sdk1.4.1_01/bin/java root 27684 27273 0 Jul06 ? 00:03:01 /usr/java/j2sdk1.4.1_01/bin/java root 27685 27273 0 Jul06 ? 00:04:23 /usr/java/j2sdk1.4.1_01/bin/java root 27686 27273 0 Jul06 ? 00:03:01 /usr/java/j2sdk1.4.1_01/bin/java root 27687 27273 0 Jul06 ? 00:03:01 /usr/java/j2sdk1.4.1_01/bin/java root 27688 27273 0 Jul06 ? 00:03:04 /usr/java/j2sdk1.4.1_01/bin/java root 27689 27273 0 Jul06 ? 00:03:04 /usr/java/j2sdk1.4.1_01/bin/java root 27690 27273 0 Jul06 ? 00:03:04 /usr/java/j2sdk1.4.1_01/bin/java root 27691 27273 0 Jul06 ? 00:03:01 /usr/java/j2sdk1.4.1_01/bin/java root 27692 27273 0 Jul06 ? 00:03:01 /usr/java/j2sdk1.4.1_01/bin/java root 2