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How to compare two fields, from 2 tables in 2 different databases ?

alter.fire
Guest
 
Posts: n/a
#1: Jun 2 '08
Hey im trying to do the following in PHP:

Connect to 2 different databases, one named complete and one
incomplete.

My goal is to find whats missing in the "incomplete" database.

The fields i want to compare in the database/table is named 'name' in
both. This field is comtaining unique names

How would you guys do that? arr1 vs arr2 compare or maybe some left
join sql?
I want to output the diff to screen.

Anyone can show me a sample, to get me in the right direction?

Thanks in advance
Jan

Mike Lahey
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Posts: n/a
#2: Jun 2 '08

re: How to compare two fields, from 2 tables in 2 different databases ?


alter.fire wrote:
Quote:
Hey im trying to do the following in PHP:
>
Connect to 2 different databases, one named complete and one
incomplete.
>
My goal is to find whats missing in the "incomplete" database.
>
The fields i want to compare in the database/table is named 'name' in
both. This field is comtaining unique names
>
How would you guys do that? arr1 vs arr2 compare or maybe some left
join sql?
I want to output the diff to screen.
>
Anyone can show me a sample, to get me in the right direction?
>
Thanks in advance
Jan
Not too hard to do in php... Make 2 arrays with the names and array_diff
them.
iTech7.com
Guest
 
Posts: n/a
#3: Jun 2 '08

re: How to compare two fields, from 2 tables in 2 different databases ?


On May 12, 6:26 am, Mike Lahey <mikey6...@yahoo.comwrote:
Quote:
alter.fire wrote:
Quote:
Hey im trying to do the following in PHP:
>
Quote:
Connect to 2 different databases, one named complete and one
incomplete.
>
Quote:
My goal is to find whats missing in the "incomplete" database.
>
Quote:
The fields i want to compare in the database/table is named 'name' in
both. This field is comtaining unique names
>
Quote:
How would you guys do that? arr1 vs arr2 compare or maybe some left
join sql?
I want to output the diff to screen.
>
Quote:
Anyone can show me a sample, to get me in the right direction?
>
Quote:
Thanks in advance
Jan
>
Not too hard to do in php... Make 2 arrays with the names and array_diff
them.
I don't think it displays a nice difference ?
Jerry Stuckle
Guest
 
Posts: n/a
#4: Jun 2 '08

re: How to compare two fields, from 2 tables in 2 different databases ?


alter.fire wrote:
Quote:
Hey im trying to do the following in PHP:
>
Connect to 2 different databases, one named complete and one
incomplete.
>
My goal is to find whats missing in the "incomplete" database.
>
The fields i want to compare in the database/table is named 'name' in
both. This field is comtaining unique names
>
How would you guys do that? arr1 vs arr2 compare or maybe some left
join sql?
I want to output the diff to screen.
>
Anyone can show me a sample, to get me in the right direction?
>
Thanks in advance
Jan
>
I'm assuming you're using MySQL - just because most people here are. If
so, you don't even need PHP. Try comp.databases.mysql for a SQL only
solution.

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Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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