Re: Multiple Access to Database

Ethan Rosenberg wrote:

> Dear List -
> 
> I have a database:
> 
> mysql> show tables;
> +---------------------+
> | Tables_in_hospital2 |
> +---------------------+
> | Intake3             |
> | Visit3              |
> +---------------------+
> 
> 
> mysql> describe Intake3;
> +--------+-------------+------+-----+---------+-------+
> | Field  | Type        | Null | Key | Default | Extra |
> +--------+-------------+------+-----+---------+-------+
> | Site   | varchar(6)  | NO   | PRI |         |       |
> | MedRec | int(6)      | NO   | PRI | NULL    |       |
> | Fname  | varchar(15) | YES  |     | NULL    |       |
> | Lname  | varchar(30) | YES  |     | NULL    |       |
> | Phone  | varchar(30) | YES  |     | NULL    |       |
> | Height | int(4)      | YES  |     | NULL    |       |
> | Sex    | char(7)     | YES  |     | NULL    |       |
> | Hx     | text        | YES  |     | NULL    |       |
> +--------+-------------+------+-----+---------+-------+
> 
> mysql> describe Visit3;
> +--------+--------------+------+-----+---------+----------------+
> | Field  | Type         | Null | Key | Default | Extra          |
> +--------+--------------+------+-----+---------+----------------+
> | Indx   | int(4)       | NO   | PRI | NULL    | auto_increment |
> | Site   | varchar(6)   | YES  |     | NULL    |                |
> | MedRec | int(6)       | YES  |     | NULL    |                |
> | Notes  | text         | YES  |     | NULL    |                |
> | Weight | int(4)       | YES  |     | NULL    |                |
> | BMI    | decimal(3,1) | YES  |     | NULL    |                |
> | Date   | date         | YES  |     | NULL    |                |
> +--------+--------------+------+-----+---------+----------------+
> 
> I want Bob to have access to all tables and fields, with all privileges.
> I want John to have read access to  Visit3: fields [Site, MedRec,
> Weight, BMI]
> 
> 1] How do I do it?
> 2] In the case that I have two users with write access to a table, how
> do I lock the tables/fields so that the two users can not change the
> same varible at the same time?
> 
> Thanks.
> 
> Ethan

Start with http://dev.mysql.com/doc/refman/5.5/en/privilege-system.html



Cheers
-- 
David Robley

Heads I win, tails you lose.
Today is Setting Orange, the 15th day of Chaos in the YOLD 3178. 


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