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select 
	/*pspt_id为用户身份证号码*/
	a.pspt_id 
	/*判断用户身份证是否符合规则*/
	,case 
		/*判断身份证号码是否为18位*/
		when length(a.pspt_id)<>'18' then '身份证号码位数不对' 
		/*判断身份证号码前17位是否含除数字外的字符*/
		when translate(substr(a.pspt_id,1,17),'','0123456789') <>'' then '身份证号码前17位格式不正确' 
		/*判断身份证的年份是否在合理范围内*/
		when substr(a.pspt_id,7,4) not between '1900' and '2014' then '身份证年份错误' 
		/*判断身份证的月份是否在合理范围内*/
		when substr(a.pspt_id,11,2) not between '01' and '12' then '身份证月份错误' 
		/*判断身份证日期是否在合理范围内*/
		when substr(a.pspt_id,13,2) not between 1 and day(to_date(char(substr(a.pspt_id,7,4)||'-'||substr(a.pspt_id,11,2)||'-01',10),'yyyy-mm-dd')+1 month-1 day) then '身份证日期错误' 
		/*判断身份证号码的第18位是否符合验证规则*/
		when 
			mod(( 
				substr(a.pspt_id,1,1)*7+ 
				substr(a.pspt_id,2,1)*9+ 
				substr(a.pspt_id,3,1)*10+ 
				substr(a.pspt_id,4,1)*5+ 
				substr(a.pspt_id,5,1)*8+ 
				substr(a.pspt_id,6,1)*4+ 
				substr(a.pspt_id,7,1)*2+ 
				substr(a.pspt_id,8,1)*1+ 
				substr(a.pspt_id,9,1)*6+ 
				substr(a.pspt_id,10,1)*3+ 
				substr(a.pspt_id,11,1)*7+ 
				substr(a.pspt_id,12,1)*9+ 
				substr(a.pspt_id,13,1)*10+ 
				substr(a.pspt_id,14,1)*5+ 
				substr(a.pspt_id,15,1)*8+ 
				substr(a.pspt_id,16,1)*4+ 
				substr(a.pspt_id,17,1)*2 
			),11) 
			<> 
			( 
			case 
				when substr(a.pspt_id,18,1)='1' then '0' 
				when substr(a.pspt_id,18,1)='0' then '1' 
				when substr(a.pspt_id,18,1) in ('X','x') then '2' 
				when substr(a.pspt_id,18,1)='9' then '3' 
				when substr(a.pspt_id,18,1)='8' then '4' 
				when substr(a.pspt_id,18,1)='7' then '5' 
				when substr(a.pspt_id,18,1)='6' then '6' 
				when substr(a.pspt_id,18,1)='5' then '7' 
				when substr(a.pspt_id,18,1)='4' then '8' 
				when substr(a.pspt_id,18,1)='3' then '9' 
				when substr(a.pspt_id,18,1)='2' then '10' 
			end 
			) 
		then '身份证验证错误' 
		/*判断身份证号码的区域编码是否符合规则*/
		when b.county_sar_code is null then '区县编码校验错误' 
		else '有效实名制客户' 
	end
/*用户信息表，包含所需要查询的身份证号码信息*/
from usr_info a 
/*身份证的行政区域编码表，从统计局官网和网上可以下载，设定county_sar_code为6位行政编码*/
left join csounty_sar b 
on substr(a.pspt_id,1,6)=b.county_sar_code