如何将these3 SQL查询转换为一个查询？

Question

有没有什么办法可以把下面3个sql查询转换成一个查询？

insert into table1(Name,Age,Type) Select FirstName,Age,'Type1' FROM Table2 where Type='SK'
insert into table1(Name,Age,Type) Select FirstName,Age,'Type23' FROM Table2 where Type='JK'
insert into table1(Name,Age,Type) Select FirstName,45,'Type64' FROM Table2 where Type='YP'

Answer 1

insert into table1(Name,Age,Type) 
Select FirstName,Age,'Type1' FROM Table2 where Type='SK'
union all
Select FirstName,Age,'Type23' FROM Table2 where Type='JK'
union all
Select FirstName,45,'Type64' FROM Table2 where Type='YP'

Answer 2

insert into table1(Name,Age,Type) 
Select FirstName, 
       CASE WHEN Type = 'YP' THEN 45 ELSE Age END, 
       CASE WHEN Type = 'SK' THEN 'Type1' etc.
FROM Table2 
where Type in ('SK', 'JK', 'YP')

编辑：

这取决于这里有多少种类型。也许是另一个存储类型和相应文本('Type‘等)的表。总比一个大案子要好。年龄也是一样的。

Answer 3

尝试：

   Insert table1(Name,Age,Type)
    Select FirstName, 
         Case Type When 'YP' Then 45 Else Age End,
         'Type' + Case Type 
                    When 'SK' Then '1'
                    When 'JK' Then '23'
                    When 'YP' Then '64' End
    From Table2
    Where Type In ('SK', 'JK', 'YP')