SELECT SUM(t.money_spent) as sum_of_spent,
c.customer_name 
from transactions t 
join customers c on t.customer_id=c.customer_id 
group by customer_name order by c.customer_name asc

SELECT SUM(ROUND(t.money_spent)) as sum_of_money_spent,
c.customer_name from transactions t 
join customers c on t.customer_id=c.customer_id 
group by customer_name order by c.customer_name asc

select * from wp_posts where post_content 
like '%content management system%';

If you need to search and replace some text in more than one post then you can use this sql :

UPDATE wp_posts SET post_content = REPLACE (
post_content, 'content management system', 'CMS');

Firstly you will want to turn the mysql service off.

codytaylor@server:~$ sudo /etc/init.d/mysql stop
 * Stopping MySQL database server mysqld   

 codytaylor@server:~$ sudo mysqld_safe --skip-grant-tables --skip-networking &

codytaylor@server:~$ mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD('password') WHERE User='root';
mysql> FLUSH PRIVILEGES;

codytaylor@server:~$ sudo /etc/init.d/mysql restart

If you are using windows and you want to reset the mysql root password then check the mysql documentation.

msiexec /qn /i mysql-essential-5.1.37-win32.msi INSTALLDIR=C:\MySQL

The ‘/qn’ switch makes this install quiet. In this example I chose ‘C:\MySQL’ as the install directory. Feel free to replace that path with whatever you choose.

Just because MySQL is installed and has all the appropriate files registered doesn’t mean that it’s useful. You will probably want it to run as a service, have it listen on a certain port, and have a root user already set up. This can be done with the MySQLInstanceConfig.exe program, although the arguments are a little more involved.

C:\MySQL\bin\MySQLInstanceConfig.exe -i -q 
"-lC:\MySQL\mysql_install_log.txt" 
"-pC:\MySQL\bin" "-tC:\MySQL\my-template.ini" 
"-cC:\MySQL\my.ini" -v5.1.37 
ServerType=DEVELOPMENT 
DatabaseType=MIXED 
ConnectionUsage=DSS 
Port=3306 
ServiceName=MySQL
RootPassword=root1234 
SkipNetworking=no 
AddBinToPath=yes

The entire string above must be run as one line. If you just copy and paste then the console will error out. Most of the arguments above are straight forward if you’ve ever configured a MySQL server before but just in case I’ve detailed the parameters below.

-n product name
-p path of installation (no \bin)
-v version

Actions:
-i (install instance)
-r (remove instance)
-s (stop instance)
-q (be quiet)
-lfilename (write log file)

When launched manually, these can also be submitted
-t<.cnf template filename>
-c<.cnf filename>

Use the following options to define the parameters for the configuration file generation.
ServiceName=$
AddBinToPath={yes | no}
ServerType={DEVELOPMENT | SERVER | DEDICATED}
DatabaseType={MIXED | INNODB | MYISAM}
ConnectionUsage={DSS | OLTP}
ConnectionCount=#
SkipNetworking={yes | no}
Port=#
StrictMode={yes | no}
Charset=$
RootPassword=$
RootCurrentPassword=$

So if you use the example above you will get a basic mysql installation. When I used these commands I put them in a batch file followed by this command:

mysql –user=user_name –password=your_password db_name < create_database_and_tables.sql

The ‘create_database_and_tables.sql’ obviously has all the sql code to create the MySQL databases and tables that are needed. The batch file installed, configured, and structured my MySQL databases. I spent awhile yesterday looking for a post like this so hopefully this saves someone some time.