Sqlite: Selecting records spread over total records

Posted by Martin on Stack Overflow See other posts from Stack Overflow or by Martin
Published on 2010-04-28T13:23:07Z Indexed on 2010/04/28 13:43 UTC
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I have a sql / sqlite question. I need to write a query that select some values from a sqlite database table. I always want the maximal returned records to be 20. If the total selected records are more than 20 I need to select 20 records that are spread over the total records. It is also important that I always select the first and last value from the table when sorted on the date.

I know how to accomplish this in code but it would be perfect to have a sqlite query that can do the same.

The query Im using now is really simple and looks like this:

"SELECT value,date,valueid FROM tblvalue WHERE tblvalue.deleted=0 ORDER BY DATE(date)"

Hope I explained what I need, thanks for your help!

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