Re: [PHP-DB] Mathematics Examples MySQL and PHP

[Tamas Arpad]

> Does anybody have some examples about howto make mathematic
> functions in PHP with values from any
> MySQL table such as:
>
> Value 1 + Value 2 = Value 3
> Value 1 - Value 2 = Value 3
> Value 1 * Value 2 = Value 3
> Value 1 / Value 2 = Value 3

maybe
UPDATE tablename SET field3=field1+field2
...

but it's somewhat hard to undertsand yor question

Arpi

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Re: [PHP-DB] mySQL Query and blank fields

[Tamas Arpad]

On Thursday 25 October 2001 13:16, Niklas Lampén wrote:
> How can I query for specified fields that has to contain atleast 2
> charters?

SELECT * FROM foo_table WHERE length(bar_field)>=1;

Arpi
>
> Example:
> Field AAA contains '' (NULL) => No match
> Field BBB contains ' ' (one charter) => No match
> Field CCC contains  'ab' => Match
> Field DDD contains 'abcdefg' => Match
>
>
> Niklas

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