Thank you very much for the SQL statement. It really does the job.  I only
added an order by year  to the outer query, but the job was already well
done. Here is the query:

 

SELECT to_char(date_trunc('year', t1.ts), 'YYYY') AS year, count(*) FROM
(SELECT to_timestamp(text_value, 'YYYY-MM-DD') AS ts FROM metadatavalue
WHERE metadata_field_id = 12) t1 GROUP BY date_trunc('year', t1.ts) order by
year;

 

 

Thnaks for saving my dear.

 

From: George Hamilton [mailto:[email protected]] 
Sent: Tuesday, October 12, 2010 6:51 PM
To: [email protected]
Subject: Re: [Dspace-tech] Annual submission Rates

 

Hi

The following should work (on Postgres):

SELECT to_char(date_trunc('year', t1.ts), 'YYYY') AS year, count(*) FROM
(SELECT to_timestamp(text_value, 'YYYY-MM-DD') AS ts FROM metadatavalue
WHERE metadata_field_id = 12) t1 GROUP BY date_trunc('year', t1.ts);

George

On 12/10/10 16:47, Admire wrote: 

Hi All,

Hope I find you well.  I am interested in establishing the number of items
deposited each year in our IR. Is there anyone out there who had done that
and can provide me with the SQL  statement to do that.

 

Regards,

 

Admire

 
 
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