SqlServer中的Case When Like

数据库：SqlServer

--create table--
create table table1 (
    column1 nvarchar(200),
    column2 nvarchar(200)
);

--insert data--
insert into table1(column1,column2) values ('_abc_','aasf');
insert into table1(column1,column2) values ('_acbc_','aasf');
insert into table1(column1,column2) values ('23','ggg');
insert into table1(column1,column2) values ('_def_','aasf');
insert into table1(column1,column2) values ('asdf','3123');

--search as type--
Select
    type = case when column1 like '%_abc_%' then 'a'
                when column2 like '%GGG%' then 'b'
                when column1 like '%_def_%' then 'c'
            else 'others' end,
    column1,
    column2
from table1
where 1=1