Oracle-L: Return the first row only

From: Krishnaswamy, Ranganath <Ranganath.Krishnaswamy_at_blr.hpsglobal.com>
Date: Wed, 29 Jan 2003 04:29:14 -0800
Message-ID: <F001.0053D12A.20030129042914@fatcity.com>

Hi List,

I have the below query which returns 13 records. In this I want to display only the 1st row. Is it possible to do this through rownum or any other function or pseudo column? If so, please let me know the same. Any help in this regard is very much appreciated.

select 'shipment' table_name,ce.display_name,st.timestamp, sequence from shipment_timestamp st, customer_event ce, xm_field xm where shipment_id = 10402344721477

and ce.CUSTOMER_MOT_ID = 1040130035205
and xm.field_id = ce.field_id
and st.event_id = xm.event_id

union
select 'container' table_name,ce.display_name,sct.timestamp, sequence from shipment_container_timestamp sct, customer_event ce, xm_field xm where shipment_id = 10402344721477
and ce.CUSTOMER_MOT_ID = 1040130035205
and xm.field_id = ce.field_id
and sct.event_id = xm.event_id
union
select 'order' table_name,ce.display_name,ot.timestamp, sequence from order_timestamp ot, shipment_order so,customer_event ce, xm_field xm where so.shipment_id = 10402344721477

and so.order_id = 2
and ot.shipment_order_id = so.shipment_order_id  
and ce.CUSTOMER_MOT_ID = 1040130035205
and xm.field_id = ce.field_id
and ot.event_id = xm.event_id order by sequence desc

Thanks and Regards,

Ranganath
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Author: Krishnaswamy, Ranganath
INET: Ranganath.Krishnaswamy_at_blr.hpsglobal.com

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