Re: Clarification on AutoInc fields

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#5210

From: Umberto Uderzo
Date: Wed, 04 Jul 2001 20:31

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Hello Yakunin,

Sure your suggestion will improve the performance.
Anyway i think that a COUNT(*) on a decent DBMS will not decrease so much
the performance, since this is a particular query (DBMS should mantain tha
record count of a table i think).

Ciao... Umberto Uderzo

> SELECT gen_id(generator_name,1), COUNT(*) FROM  table_name
>
> will decrease perfomance of the application if table you are selecting
from
> has lots of records.
>
> So I'd like to suggest the following solution:
> 1. In database should be created special table with only record.
> 2. Select statement should be changed as follows:
> SELECT gen_id(<generator_name>, 1) from <name_of _table_with_only_record>

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Subject: Re: Clarification on AutoInc fields
Date: Wed, 4 Jul 2001 22:31:34 +0200
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