oracle一张表，不同的where条件count出来的结果，并列创建在一个视图里，sql怎么写？
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create view vw_new as
select sum(case when fnumber = 100013 then 1 else 0 end) count_1,
sum(case when fnumber = 100012 then 1 else 0 end) count_2,
sum(case when fnumber = 100011 then 1 else 0 end) count_3 From table_c a
select sum(case when fnumber = 100013 then 1 else 0 end) count_1,
sum(case when fnumber = 100012 then 1 else 0 end) count_2,
sum(case when fnumber = 100011 then 1 else 0 end) count_3 From table_c a
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