data_specific_to_device = contains diff values, and is different for different devices
associated_service = will also be a list of values which will be different for different
and same for associated_device column.
this data rarely(almost never) changes and add happens only say twice a month. So can I
not have one big table like below? what disadvantage does it has? sorry I am not into
RDBMS, so i want to know prob specific to my data and proposed table layout. I am also
not clear about relating more than one tables, if i break this up in more than one
thx in advance.
From: Peter Brawley <peter.brawley@stripped>
To: Rajeev Prasad <rp.neuli@stripped>; "mysql@stripped"
Sent: Wednesday, August 15, 2012 4:01 PM
Subject: Re: suggestion needed for table design and relationship
On 2012-08-15 1:54 PM, Rajeev Prasad wrote:
> I have to keep this data in MySql, and i am not sure (as SQL/databse is not my
field) how to organise this into one or many tables? right now I would represent my info
> dev_x | 1234 |1234
|188.8.131.52 |184.108.40.206 |data_specific_to_x
> dev_y | 2348 |7734
|10.2.3.4 |220.127.116.11 |data_specific_to_y.....|SVC_B,SVC_X...
> dev_z | 3934 |5634
|18.104.22.168 |22.214.171.124 |data_specific_to_z.....|SVC_M
> pl advice. what would be the best design? data_specific_to_device could be more than
one column, as i get to explore the data a bit more.
> and do i really need a device_id field? whi. ch any SQL table normally has.
Without a primary key, a table isn't really a table. A surrogate
(auto_increment) PK might be simplest.
If the associated_service column is a list of values, it needs to be
projected to a child table (parentkey, data item ...).
From the info posted, I can't tell much about the other fields
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