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 Originally Posted by malay_biswal
Check this query.
select orderstage_id,process_date from orderhistory
where orderstage_id in (select orderstage_id from orderhistory
where orderinfo='reprocessed') and orderinfo!='reprocessed'
Your query doesn't take into consideration neither cardinality nor order. You cannot just assume there are two rows per orderstage_id.
How do you know returned row/rows is/are the next to "reprocessed" row?
1- Your query has the potential to return multiple rows
2- Your query has the potential to return rows before/after "reprocessed" row
Better to wait for OP to clarify scenario... then try to help him/her.
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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