SQL Question - Using Group By - Mailing list pgsql-general

From Mike
Subject SQL Question - Using Group By
Date
Msg-id 1172260251.135113.112560@j27g2000cwj.googlegroups.com
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Responses Re: SQL Question - Using Group By  ("ksherlock@gmail.com" <ksherlock@gmail.com>)
Re: SQL Question - Using Group By  (Tomas Vondra <tv@fuzzy.cz>)
List pgsql-general
Hi,

I have a question about using Group By.

On a table like this:

Type (varchar)     |     Active (boolean)
--------------------------------------------------------
Type One           |      False
Type Two           |      True
Type One           |      True
Type Fifty           |      Flase
Type Two           |      True

Having this table I want a report grouping Types and giving me more
statistics such as:

Type    |    Active Count    |     Inactive Count    |    Active
Percent

How do i do that?

I can think of :

select Type from table_name group by Type

But that doesn't give me how many active and inactive each had!

Please help me here understand how to approach this.

Thank you,
Mike


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