Oracle数据库也是众多数据库相对比较常见的数据库。很多个人或者企业都在使用Oracle数据库进行处理一些数据。就好比Oracle数据库如何识别个人信息的等的问题。本文主要介绍Oracle根据身份证号获取人员城市，性别和年龄的信息。同时用示例代码向您详细展示，该示例代码对每个人的学习或工作都有一定的参考价值，需要的朋友可以参考它。
1、通过身份证号查询所在省市
SELECT
count(*) as total,
case substr(t.CERTNO,0,2)
when '11' then '北京市'
when '12' then '天津市'
when '13' then '河北省'
when '14' then '山西省'
when '15' then '内蒙古自治区'
when '21' then '辽宁省'
when '22' then '吉林省'
when '23' then '黑龙江省'
when '31' then '上海市'
when '32' then '江苏省'
when '33' then '浙江省'
when '34' then '安徽省'
when '35' then '福建省'
when '36' then '江西省'
when '37' then '山东省'
when '41' then '河南省'
when '42' then '湖北省'
when '43' then '湖南省'
when '44' then '广东省'
when '45' then '广西壮族自治区'
when '46' then '海南省'
when '50' then '重庆市'
when '51' then '四川省'
when '52' then '贵州省'
when '53' then '云南省'
when '54' then '西藏自治区'
when '61' then '陕西省'
when '62' then '甘肃省'
when '63' then '青海省'
when '64' then '宁夏回族自治区'
when '65' then '新疆维吾尔自治区'
when '71' then '台湾省'
when '81' then '香港特别行政区'
when '82' then '澳门特别行政区'
else '未知'
end AS province
FROM uip_bjt_userinfo t
group by case substr(t.CERTNO,0,2)
when '11' then '北京市'
when '12' then '天津市'
when '13' then '河北省'
when '14' then '山西省'
when '15' then '内蒙古自治区'
when '21' then '辽宁省'
when '22' then '吉林省'
when '23' then '黑龙江省'
when '31' then '上海市'
when '32' then '江苏省'
when '33' then '浙江省'
when '34' then '安徽省'
when '35' then '福建省'
when '36' then '江西省'
when '37' then '山东省'
when '41' then '河南省'
when '42' then '湖北省'
when '43' then '湖南省'
when '44' then '广东省'
when '45' then '广西壮族自治区'
when '46' then '海南省'
when '50' then '重庆市'
when '51' then '四川省'
when '52' then '贵州省'
when '53' then '云南省'
when '54' then '西藏自治区'
when '61' then '陕西省'
when '62' then '甘肃省'
when '63' then '青海省'
when '64' then '宁夏回族自治区'
when '65' then '新疆维吾尔自治区'
when '71' then '台湾省'
when '81' then '香港特别行政区'
when '82' then '澳门特别行政区'
else '未知'end order by province desc
2、通过身份证号得到性别（第17位为奇数为男，偶数为女）
select
decode(mod(to_number(substr(t.useridcardnum, 17, 1)), 2),0,'女','男') as sex
from uip_ca_userinfo t
3、通过身份证号得到年龄
select to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) as age from uip_ca_userinfo t
4、通过身份证号统计所在年龄段的人数
select count(t.id),
case
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 1 and 20 then
'1-20岁'
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 21 and 30 then
'21-30岁'
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 31 and 40 then
'31-40岁'
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 41 and 50 then
'41-50岁'
else
'50岁以上'
end as 年龄段
from uip_ca_userinfo t
group by case
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 1 and 20 then
'1-20岁'
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 21 and 30 then
'21-30岁'
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 31 and 40 then
'31-40岁'
when to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 41 and 50 then
'41-50岁'
else
'50岁以上'
end
order by 年龄段 asc
5、通过身份证号统计男女数量
select count(t.id),
decode(mod(to_number(substr(t.useridcardnum, 17, 1)), 2),0,'女','男') as sex
from uip_ca_userinfo t
where to_char(sysdate, 'yyyy') - substr(t.useridcardnum, 7, 4) between 1 and 26
group by decode(mod(to_number(substr(t.useridcardnum, 17, 1)), 2),0,'女','男')
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