Re: Error message I am getting today. All help appreciated.

2012-10-19 Thread Andrés Tello
humm... I bet he have just run of space... Some thing like tht... On Tue, Oct 16, 2012 at 10:43 PM, Dehua Yang wrote: > Hi > There many reasons to lose connection to MySQL server. > And what's more , the important thing is that you should provide the error > code to us. > > If you got the err

Re: Schemas for storing and reporting on hashtags

2012-10-19 Thread Dehua Yang
Hi Hank I just can think like this table CREATE TABLE xyz ( hashtag VARCHAR(...) NOT NULL, comment_id ... NOT NULL, user_id bigint unsigned not null, PRIMARY KEY (hashtag, comment_id), INDEX(comment_id, hashtag), index idx_user_id(user_id) ) ENGINE = InnoDB; one user want to check all his comm

Re: Schemas for storing and reporting on hashtags

2012-10-19 Thread Hank
It's actually much more complicated than a simple many-to-many relationship. For instance, users may enter many hashtags in many comments, and a user might want to see all the hashtags they've used, and then find all the comments with those hashtags. I'm not trying to re-create the specification

RE: Schemas for storing and reporting on hashtags

2012-10-19 Thread Rick James
Many-to-many? That is, can a comment have many different hashtags? And a hashtag can be associated with many comments? Best practice for many-to-many: CREATE TABLE xyz ( hashtag VARCHAR(...) NOT NULL, comment_id ... NOT NULL, PRIMARY KEY (hashtag, comment_id), INDEX(comment_id, hashtag) ) ENGIN

Schemas for storing and reporting on hashtags

2012-10-19 Thread Hank
Are there any established "best practices" or schemas for incorporating twitter-like hashtags into a database ? Let's say I have a blog with a commenting system, and I want to allow people to add hashtags to the comments. I could certainly create one on my own (it's not that difficult), but I'd

Re: Table crashed error

2012-10-19 Thread Dehua Yang
Hi Reindl I had tested your method serval months ago. When i had a crash table, I added myisam-recover = "FORCE" to my.cnf and restarted mysqld. But it didn't work So, finally, we just had to do this repairment by application code. On Fri, Oct 19, 2012 at 4:59 PM, Reindl Harald wrote: > >

Re: error 13

2012-10-19 Thread Ananda Kumar
i mean ...do u connect just like mysql -u -p or mysql -u -p -h hostname On Thu, Oct 18, 2012 at 11:07 PM, kalin wrote: > > not sure i follow. what do you mean connect?! > > there is a server (mysqld) and a client (mysql). the client gets to the > server via the socket. like on any other un

Re: Table crashed error

2012-10-19 Thread Reindl Harald
Am 19.10.2012 08:42, schrieb Dehua Yang: > MyISAM storage tables also have this kind of problem. > > I have try serval solutions for this problem , but can't work very well. > > If your application isn't very import , you can let your application auto > repair this problem. > Just like this :