Re: Couple of small questions

From: Date: Mon, 20 Nov 2000 09:46:16 +0000
Subject: Re: Couple of small questions
References: 1  Groups: php.general 
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Hi, Select count(*) from table_name will give you the number of records stored in a db table. With a lot of data this can take a lot of time. Some databases (eg. Sybase SQL AnyWhere) have a system-table that holds information about all the tables in the database (also the number of rows in a table). In that case you can select it from this table (fast eg. select count from SYS.SYSTABLE where table_name = 'table_name'). To add up Gram you can create a trigger (fire after insert) that calculates the sum of Gram and leaves the result in a temporary table. The select the sum of Gram (one row) and present this value. Regards, Bjørn André Lie At 04:30 20.11.00 -0500, you wrote:
Hi again, Need some help with some math stuff. Firstly, what is the best method for obtaining the number of records stored in a db table? and secondly in a table I am storing a value under the name Gram every time a record is added this value is different what I am trying to do is select all the records take Gram from each record and add them all together, any ideas. TIA Ade -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: php-general-unsubscribe@lists.php.net For additional commands, e-mail: php-general-help@lists.php.net To contact the list administrators, e-mail: php-list-admin@lists.php.net


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