php /mysql count statement...

Posted on 2014-12-05
Last Modified: 2014-12-06
Hi, I have a column as shown below;


I need to have a count of all chairs, footrest, and armchairs using php/mysql. I am not sure if there is a function in mysql that will give me the count with involving some php code. Can someone let me know how to do this?

Thank you,
Question by:aej1973
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LVL 83

Expert Comment

by:Dave Baldwin
ID: 40483901
If there is nothing else in that column, then COUNT(*) will work.  See here and here

Author Comment

ID: 40483930
Hello Dave, I am familiar with the count statement, but I need to be able to strip the "," and "-201..." to be able to get the correct count.

LVL 83

Accepted Solution

Dave Baldwin earned 250 total points
ID: 40483955
Use a 'LIKE' statement in the WHERE clause.

WHERE column LIKE '%Chair%' AND column LIKE '%Footrest%' AND column LIKE '%armchairs%' AND 

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You don't actually need the last one because 'armchairs' already contains the word 'chair'.
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LVL 110

Expert Comment

by:Ray Paseur
ID: 40484050
You may want to consider getting the assistance of a professional DBA to help you redesign this table.  You should be able to make queries like this very simply, but it looks like the data structure permits a collection of semi-useless data to invade the rows.

There are regular expressions that can help in the query, but for my money, a PHP script is the way to go.  Make a SELECT that captured all rows and look at each of them.  With a bit of PHP logic you can separate the fields into array collections of the data you want.  Then PHP count() will be your answer.
LVL 83

Expert Comment

by:Dave Baldwin
ID: 40484079
That should probably be an OR statement.
WHERE column LIKE '%Chair%' OR column LIKE '%Footrest%' OR column LIKE '%armchairs%'

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Assisted Solution

by:Ray Paseur
Ray Paseur earned 250 total points
ID: 40484112
@Dave: I think the "default" installation of MySQL makes the character set case-insensitive.  So your earlier comment about Chair being a subset of armchairs is exactly right.  This WHERE clause would also be expected to find them all:

WHERE column LIKE '%cHAIr%' OR column LIKE '%FooTREst%'

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Expert Comment

by:Dave Baldwin
ID: 40484167
While that is generally true... I wouldn't count on it.  And it is not true for database and table names using MyISAM engine on non-Windows systems because database and table names are also used for file names which are case-sensitive on those systems.  Someone noted recently that phpMyAdmin forces database and table names to be lower case at creation.  I think someone got tired of "answering the phone".
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Expert Comment

by:Ray Paseur
ID: 40484522
You're right -- case-insensitivity is not true for database and table names, just MySQL commands and the data that is housed in the database.  And like all things in computers, you can override the standard settings!  In my experience, unless you program it wrong, MySQL will honor the data, byte-by-byte, and will not make any alterations to case upon INSERT.  SELECT can control whether case matters, depending on initialization settings

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