hibernate show_sql 问题

Question

如下后台打印的语句，我的表是sys_user 为何他要写成sysuser0_.id,后面的as id1_58 又是什么意思，有没有这样的文章让我学习下语法啊？
Hibernate:
select
sysuser0_.id as id1_58_,
sysuser0_.active_flag as active_f2_58_,
sysuser0_.cellphone_number as cellphon3_58_,
sysuser0_.cn_name as cn_name4_58_,
sysuser0_.create_by as create_b5_58_,
sysuser0_.create_date as create_d6_58_,
sysuser0_.email as email7_58_,
sysuser0_.password as password8_58_,
sysuser0_.perm_level as perm_lev9_58_,
sysuser0_.update_by as update_10_58_,
sysuser0_.update_date as update_11_58_,
sysuser0_.user_name as user_na12_58_
from
sys_user sysuser0_
where
sysuser0_.active_flag='1'

Answer 1

sys_user sysuser0_ 这一句就是自动帮你起了个别名了呀，然后通过别名去使用，这要学sql了，跟hibernate没关系