Start mysql in Ubuntu without having root privilege:- If you want to use mysql in Ubutu you can use following command which will use a root level privilege $ mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 147 Server version: 5.1.49-1ubuntu8.1-log (Ubuntu) When it demands to enter the password fill it with 'root' and hopefully you'll get logged in . Last_insert_id():- (with no argument) returns the first automatically generated value that was set for an AUTO_INCREMENT column by the most recently executed INSERT statement to affect such a column. For example, after inserting a row that generates an AUTO_INCREMENT value, you can get the value like this: mysql> SELECT LAST_INSERT_ID(); Database():- Database() method returns the current selected database and you can use it in your communication and your queries. The syntax is : mysql>select Database (); User():- It a...
The command sudo provides other users to run a command as a root. To use sudo user must have their level of privilege in /etc/sudoer file. In some cases this file is set for read only and others can edit that file and add their user name in Sudoer for this case such as Fedora 12 users need to provide this syntax as a root on their terminal. Syntax for adding a user in Sudoer file is: echo "username ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers And to gain the writing privilege you can use the following code in your terminal : chmod 755 /etc/sudoers This code will be enough to give permissions to the user and his user group. If you are an ubuntu user you can easily add your user in this file like: vi /etc/sudoers And you will get a text file. Afterward you need to press 'i' for edit and edit by adding your username just below "root ALL=(ALL) ALL" "username ALL=(ALL) ALL"