Re: Using Table prefixes

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Bastien Koert

On 2013-06-08, at 5:56 PM, Tamara Temple <tamouse.lists@xxxxxxxxx> wrote:

> Tedd Sperling <tedd.sperling@xxxxxxxxx> wrote:
>> On Jun 8, 2013, at 3:00 PM, Ashley Sheridan <ash@xxxxxxxxxxxxxxxxxxxx> wrote:
>> dealTek <dealtek@xxxxxxxxx> wrote:
>>> 
>>>> I can see the basic need for a table prefix in a case where you may use
>>>> one mysql database for several projects at once so as to distinguish
>>>> tables per project like...
>>>> 
>>>> -snip-
>>>> however I was told a long time ago to use a prefix "tbl_" like
>>>> tbl_Mytable but I don't really see much need for this by itself ... Am
>>>> I missing something?
>>> 
>>> I think that's a pattern that people use to distinguish their tables from views, etc, but personally I find it a little pointless. It doesn't really help in any way, and just means more typing.
>>> 
>>> Using a prefix for a set of tables in one db where you might have several things using the db (i.e. some hosting limits the databases you can have) makes sense, and especially so if you name it sensibly as in your first example. 
>>> Thanks,
>>> Ash
>> 
>> I agree, but more than that I also set up databases specifically for clients such that all the tables in them are related to the client and not each other, such as:
>> 
>> client1_db
>> 
>> contacts
>> invoices
>> etc
>> 
>> and
>> 
>> client2_db
>> 
>> contacts
>> invoices
>> etc
>> 
>> As such, the "tbl_" prefix is not needed.
>> 
>> Cheers,
>> 
>> tedd
>> 
>> _____________________
>> tedd.sperling@xxxxxxxxx
>> http://sperling.com
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> 
> In a multi-client situation like Tedd describes, it is rather more
> important to segregate client's data, otherwise you need to do a fair
> bit of permissions management to keep rogue employees/contractors at the
> various clients from snooping around. (It happens!)
> 
> OTOH, when it's your own apps, and you are db restricted as Ash
> mentions, the table prefix thing can be useful. Personally, I don't do
> that, but that's because I am rarely resource-bound in that way. One db
> per app, basically.
> 

I have run into situations where I prefix with the app name due to same table names in the same db. This was on a large db2 install. 



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