Only if this could work ... 

-- changed "union" to "union all"
select id from table where id > ? order by id asc  limit 1
UNION ALL
select id from table where id < ? order by id desc limit 1

[download]

... does not work in Sybase for (a) "order by" clause does not go with "union all" or in derived table creation; (b) there is no "limit" clause, just "rowcount" option per SQL session/transaction.

In reply to Re^3: Calculating previous/next from database by parv
in thread Calculating previous/next from database by Anonymous Monk

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