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PONeed to retrieve n-rows that are not at the beginning or in the end of the selected list
 

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  1. PONeed to retrieve n-rows that are not at the beginning or in the end of the selected list
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    <p>I have written sql statement : </p> <pre><code> select * from ( select count(*) as NumberofSignals,signals.transmitter_account,signals.class,signals.type,signals.signal_mode, signals.area_id,signals.sector_id,signals.region_info_id,signals.zone_info_id,signals.user_id,signals.device_id, signals.panel_name,signals.panel_id,signals.sector_name,signals.region_code,signals.area_name,signals.zone_code, signals.description,signals.transmitter_name,signals.transmitter_id,signals.color,'event' as Event,get_name(signals.id,'event') as event_value, 'packetnumber' as packetnumber,get_name(signals.id,'packetnumber') as packetnumber_value,wm_concat(distinct get_name(signals.id,'repeater')) as repeater, round(avg(get_name(signals.id,'signallevel'))) as avg_signallevel,min(to_char(signals.signal_forming_time, 'yyyy/mm/dd hh24:mi:ss')) as formingtime, get_name(signals.id,'address') as address,get_name(signals.id,'username') as username,get_name(signals.id,'chaneltype') as channeltype, get_name(signals.id,'code') as code,get_name(signals.id,'account') as account from signals,signal_custom_fields where signals.id = signal_custom_fields.signal_id and signals.id in (select id from (select id,rownum num from((select signals.id from signals,signal_custom_fields where signal_custom_fields.field_name = 'event' and signal_custom_fields.field_value is not null and signals.id = signal_custom_fields.signal_id and signals.signal_forming_time &gt;= to_date('2011/5/10 14:34:44', 'yyyy/mm/dd hh24:mi:ss') AND signals.signal_forming_time &lt;= to_date('2011/5/10 15:34:44', 'yyyy/mm/dd hh24:mi:ss')) intersect (select distinct signals.id from signals,signal_custom_fields where signal_custom_fields.field_name = 'packetnumber' and signal_custom_fields.field_value is not null and signals.id = signal_custom_fields.signal_id and signals.signal_forming_time &gt;= to_date('2011/5/10 14:34:44', 'yyyy/mm/dd hh24:mi:ss') AND signals.signal_forming_time &lt;= to_date('2011/5/10 15:34:44', 'yyyy/mm/dd hh24:mi:ss'))) order by id desc)) group by 'event',signals.transmitter_account,signals.class, signals.type,signals.signal_mode,signals.area_id,signals.sector_id,signals.region_info_id,signals.zone_info_id, signals.user_id,signals.device_id,signals.panel_name,signals.panel_id,signals.sector_name,signals.region_code, signals.area_name,signals.zone_code,signals.description,signals.transmitter_name,signals.transmitter_id, signals.color, get_name(signals.id,'event'), 'packetnumber',get_name(signals.id,'username'), get_name(signals.id,'chaneltype'), get_name(signals.id,'code'), get_name(signals.id,'account'), get_name(signals.id,'packetnumber'),get_name(signals.id,'address'), TO_CHAR(signals.signal_forming_time ,'dd/mm/yyyy hh24'), TRUNC(to_number(to_char(signals.signal_forming_time ,'mi'))/(30)) order by event)where rownum &lt; 300 </code></pre> <p>and here i get the first 300 rows, but how i need to rewright this statment to retrieve second 300 rows ???</p>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USJubbles
    1. USViktor
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    1. PL
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      1. LTLinked
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PONeed to retrieve n-rows that are not at the beginning or in the end of the selected list
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. COpossible duplicate of [Paging with Oracle and sql server and generic paging method](http://stackoverflow.com/questions/488108/paging-with-oracle-and-sql-server-and-generic-paging-method)
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      1. PONeed to retrieve n-rows that are not at the beginning or in the end of the selected list
      1. USMichael Pryor
    2. CONB For future reference: there is no need to post an enormous and irrelevant SQL statement to ask a question about pagination. "Select ename from emp where rownum < 300" would have sufficed!
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      1. PONeed to retrieve n-rows that are not at the beginning or in the end of the selected list
      1. USTony Andrews
    3. COi have written all sql statement becouse i have tried all kind of pegination with rownum... and select first_name from (select rownum as rn, first_name from (select first_name from some_table order by first_name) ) where rn > 100 and rn <= 200 don`t work in my case.
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      1. PONeed to retrieve n-rows that are not at the beginning or in the end of the selected list
      1. USViktor
 

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