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11.21.2007 at 11:53PM PST, ID: 22977052
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8.2

Need Order by count(field)

Asked by __php__ in MySQL Server, Databases Miscellaneous

Hi All:

I have two tables: companies and reviews.

companies table has millions of records with columns: ID, name, etc.
reviews table has thousands of records with columns: ID, company_id, user_id, rating, comment

companies table, as named, has information about companies and reviews table, has rating and comment for a company by an user. Ex:

-----------------------------------------------
companies table records:

ID: 3
name: c1

ID: 4
name: c2

ID: 10
name: c5

-----------------------------------------------
reviews table records:

ID: 1
company_id: 4
user_id: 3
rating: 5
comment: -

ID: 2
company_id: 4
user_id: 5
rating: 4
comment: -

ID: 3
company_id: 10
user_id: 3
rating: 3
comment: -

ID: 4
company_id: 3
user_id: 7
rating: 1
comment: -
-----------------------------------------------

The companies records are displayed in the search result page using:

SELLECT *
FROM companies
WHERE name LIKE '%c%'

and it displays all the companies that starts with character 'c'!

Question is: I want an SQL query that sorts the companies by number of reviews!! Companies with more reviews needs to be shown first and companies with least/no reviews needs to be shown last!

Sounds simple, but couldn't actually get to the right query. Please advise.Start Free Trial
[+][-]11.21.2007 at 11:58PM PST, ID: 20333121

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[+][-]11.22.2007 at 12:01AM PST, ID: 20333128

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[+][-]11.22.2007 at 12:02AM PST, ID: 20333132

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[+][-]11.22.2007 at 12:03AM PST, ID: 20333134

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[+][-]11.22.2007 at 12:08AM PST, ID: 20333151

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[+][-]11.22.2007 at 12:18AM PST, ID: 20333190

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About this solution

Zones: MySQL Server, Databases Miscellaneous
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Solution Provided By: imitchie
Participating Experts: 3
Solution Grade: A
 
 
[+][-]11.22.2007 at 12:33AM PST, ID: 20333248

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[+][-]11.22.2007 at 12:46AM PST, ID: 20333297

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[+][-]11.22.2007 at 12:47AM PST, ID: 20333300

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[+][-]11.22.2007 at 12:59AM PST, ID: 20333339

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[+][-]11.22.2007 at 01:03AM PST, ID: 20333353

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