1.
select k1,name1,k2,name2 from(select '2'as k1, 'fan' as name1) as a
left join
(select k2,name2 from(select '2'as k2, 'hui' as name2) as b) as c
on a.k1 = c.k2
2.select m.title, week1,w1,w2 from(
select * from(
select
'前年販売數' as title,
'' as week1,
'' as week2,
'' as week3,
'' as week4,
'' as week5,
'' as week6,
'' as week7,
'' as week8,
'' as week9,
'' as week10,
'' as week11,
'' as week12,
'' as week13,
'' as week14,
'' as week15,
'' as week16,
'' as week17,
'' as week18,
'' as week19,
'' as week20,
'' as week21,
'' as week22,
'' as week23,
'' as week24,
'' as week25,
'' as week26,
'' as week27,
'' as week28,
'' as week29,
'' as week30,
'' as t1,
'' as t2,
'' as t3,
'' as t4,
'' as t5
) as t1
union all
select * from(
select
'當年販売數' as title,
'' as week1,
'' as week2,
'' as week3,
'' as week4,
'' as week5,
'' as week6,
'' as week7,
'' as week8,
'' as week9,
'' as week10,
'' as week11,
'' as week12,
'' as week13,
'' as week14,
'' as week15,
'' as week16,
'' as week17,
'' as week18,
'' as week19,
'' as week20,
'' as week21,
'' as week22,
'' as week23,
'' as week24,
'' as week25,
'' as week26,
'' as week27,
'' as week28,
'' as week29,
'' as week30,
'' as t1,
'' as t2,
'' as t3,
'' as t4,
'' as t5
) as t2
) as m
left join
(select title,w1,w2 from(
select
'前年販売數' as title,
'1' as w1,
'2' as w2
) as n
) as n1
on m.title = n1.title
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