Merge data with the same content in two rows in a single table

Merge the data of two rows in a single table with the same content into one row for display. The value of the merge p1 and p2 fields. Createtabletest (p1varchar (10), p2varchar (10), p3varchar (10), p4varchar (10), p5varchar (10) None (selectaaa. p1, bbb. p2, aaa. p3, aaa. p4, aaa. p5from (selectRO

Merge the data of two rows in a single table with the same content into one row for display. The value of the merge p1 and p2 fields. Createtabletest (p1varchar (10), p2varchar (10), p3varchar (10), p4varchar (10), p5varchar (10) None (select aaa. p1, bbb. p2, aaa. p3, aaa. p4, aaa. p5 from (select RO

Merge the data of two rows in a single table with the same content into one row for display.

The value of the merge p1 and p2 fields.

Create table test
(
P1 varchar (10 ),
P2 varchar (10 ),
P3 varchar (10 ),
P4 varchar (10 ),
P5 varchar (10)
) <无>

(select aaa.p1, bbb.p2, aaa.p3, aaa.p4, aaa.p5  from (select ROW_NUMBER() OVER(ORDER BY ppp.p3) as RowNumber1, ppp.*          from test ppp         where ppp.p2 is null) aaa,       (select ROW_NUMBER() OVER(ORDER BY qqq.p3) as RowNumber1, qqq.*          from test qqq         where qqq.p1 is null) bbb where  (aaa.p3 = bbb.p3 and aaa.p4 = bbb.p4) ) union all(       select * from test where (p3,p4) not in (select p3,p4 from test group by p3,p4 having count(*)>1))