我有两个表:citizen_base_info,data_dictionary
desc citizen_base_info;
Name Type Nullable Default Comments
EHRID VARCHAR2(23)
NAME VARCHAR2(20)
BIRTHDAY DATE Y
[color=red]SEX_CODE [/color] VARCHAR2(1) Y
[color=red]MARRIAGE_CODE [/color] VARCHAR2(2) Y
NATION_CODE VARCHAR2(2) Y
NATIONALITY_CODE VARCHAR2(3) Y
CREATION_DATETIME DATE
desc data_dictionary;
Name Type Nullable Default Comments
VERSION VARCHAR2(50) Y
NAME VARCHAR2(20) Y
[color=red]MEANING[/color] VARCHAR2(500) Y
[color=red]------------------------------------ [/color]
现在我的citizen_base_info.sex_code 是代号,通过data_dictionary (name,version)来取得值
比如:sex_code 为1,对应data_dictionary(1,gb_2302)的含义为meaning “男”,
现在我想要查询如下的两表连接查询,用HQL来实现。来查询有含义的字段。如
NAME BIRTHDAY SEX_ MEANING MARRIAGE_MEANING 这些字段应该怎么弄呢?
希望高人能帮我解答下,十分感谢!
[code="sql"]
select i.name as name,
i.birthday as birthday,
sd.meaning as sex_meaning,
md.meaning as marriage_meaning
from citizen_base_info i, data_dictionary sd, data_dictionary md
where i.sex_code = sd.name
and sd.version = ?
and i.marriage_code = md.name
and md.version = ?;
-- or
select i.name as name,
i.birthday as birthday,
(select sd.meaning
from data_dictionary sd
where sd.name = i.sex_code
and sd.version = ?) as sex_meaning,
(select md.meaning
from data_dictionary md
where md.name = i.marriage_code
and md.version = ?) as marriage_meaning
from citizen_base_info i;
[/code]
HQL或criteria你就自己修改一下吧。
SELECT c.NAME c.BIRTHDAY d.SEX_ MEANING d.MARRIAGE_MEANING FROM(
SELECT d.NAME SEX_ MEANING,d.MEANING MARRIAGE_MEANING
FROM data_dictionary d
WHERE d.VERSION = c.EHRID
), citizen_base_info c