SELECT 替换件1 as 零件号
FROM 表2
union all
SELECT 替换件2 as 零件号
FROM 表2
union all
SELECT 替换件3 as 零件号
FROM 表2
union all
SELECT 替换件4 as 零件号
FROM 表2
union all
SELECT 替换件5 as 零件号
FROM 表2
union all
SELECT 替换件6 as 零件号
FROM 表2
union all
SELECT 替换件7 as 零件号
FROM 表2
union all
SELECT 替换件8 as 零件号
FROM 表2
UNION ALL SELECT 替换件9 as 零件号
FROM 表2;