troubleshooting Question

liniking adjacent rows in MS Sql Server 2005 and Oracle 10g

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pcombFlag for United States of America asked on
Oracle DatabaseMicrosoft SQL Server
8 Comments1 Solution202 ViewsLast Modified:
I have a set of data and I want to create pairs from each adjacent row. Pairs are only relevant if they have the same id eg

ID, sequence, type
1, 1, a
1, 2, b
1, 3, c
2, 4, d
2, 5, e
2, 6, f

create a set of rows as follows
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