Question

Hi I am building a social network in dreamweaver using php and sql as my server languages to interact with my databases. I am going to use godaddy.com to host my website and they say that they will give me unlimited mysql databases, but they can only be 1gb each. I would like to have one database designated for just user information like name and email that would be contained in one huge table. Then in database 2, I would like to give each user their own table that contains all of their comments. Every comment I would just add a row of data. Pretty soon I would run out of space on database 2 and have to create a database 3 full of comments. I would continue this process of creating a new database everytime I ran out of data on the old one. The problem is that people on database 2 are still making comments and are still creating more data for me to store. I don’t want to put a limit on how many comments people can store. I want them to be able to create as many comments as they want without deleting the old comments. Any suggestions on what to do or where to go from here. How can I solve this problem? Also, is there a way to find out how much storage a database has left through code.

Answer 1

You can run the following sql statement to determine the database size in MB.

SELECT table_schema "Data Base Name", SUM( data_length + index_length) / 1024 / 1024 
"Data Base Size in MB" FROM information_schema.TABLES 
where table_schema='apdb'
GROUP BY table_schema ;

+----------------+----------------------+
| Data Base Name | Data Base Size in MB |
+----------------+----------------------+
| apdb           |          15.02329159 |
+----------------+----------------------+
1 row in set (0.00 sec)

In the above example, apdb is the name of the database.