RE: It's Friday (a MySQL Question)

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> -----Original Message-----
> From: Ashley Sheridan [mailto:ash@xxxxxxxxxxxxxxxxxxxx] 
> Sent: Friday, August 13, 2010 3:00 PM
> To: tedd
> Cc: php-general@xxxxxxxxxxxxx
> Subject: Re:  It's Friday (a MySQL Question)
> 
> On Fri, 2010-08-13 at 17:48 -0400, tedd wrote:
> 
> > Hi gang:
> > 
> > Normally if I want to dump a MySQL database, I read the 
> database via 
> > a PHP script (i.e., list tables and fetch rows) and save 
> the results 
> > as a text file -- after which I download the file -- it's not a big 
> > deal.
> > 
> > However while I was doing my daily read of the MySQL Manual, namely:
> > 
> > http://dev.mysql.com/doc/refman/5.0/en/select.html
> > 
> > I came across this statement:
> > 
> >      SELECT * FROM table_reference INTO OUTFILE 'file_name'
> > 
> > It looked to be bit simpler/shorter than my code, so I 
> tried it. But 
> > it reports:
> > 
> >      Access denied for user 'me'@'localhost' (using password: YES).
> > 
> > I suspect that the "access being denied" is because MySQL doesn't 
> > have permission to create the output file. The MySQL manual 
> reports: 
> > 1) that a file cannot be present; 2) AND MySQL must have file 
> > privileges to create the file -- but I don't know how to 
> set that up.

http://dev.mysql.com/doc/refman/5.0/en/grant.html

http://dev.mysql.com/doc/refman/5.0/en/privileges-provided.html#priv_file

GRANT SELECT, FILE ON mydb.table_reference TO 'me'@'localhost';

> I've only ever done something like this via the command line. Having
> said that, could you maybe pass a command line string to exec().
> Something like (untested):
> 
> echo 'password' | mysql -u root -p < query

You know you can pass that on the command line right and avoid this pipe
business?

mysql -uroot -ppassword < query

Or

mysql --user=root --password=password < query

> I believe that is the right sort of thing, but I've never 
> quite done it
> all as a single statement like this before, I've always tended to type
> in things on a line-by-line basis.


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