一个sql语句写不出来，谁能帮忙写下

String sql = "select id,username,sex,birth,borth,working,loginpass,salary from test "; //test为要查询的表名

String sql="select id,username,sex,birth,borth,working,loginpass,salary from test where id+"=users;

String sql="select id,username,sex,birth,borth,working,loginpass,salary from test where "id+"=users"; //test为要查询的表名

where id in ('1','2') //users 分开写 用in