Sqlserver根据身份证号码查询年龄分布 籍贯分布DATEDIFF Case函数

Sql函数调用

项目记录

劳务实名制系统首页数据统计

应用到的SQL Server 函数

函数	案例	说明
DATEDIFF(part,start,end)	select * from [表名] where DateDiff(dd,[字段DT],getdate())<=7	七天内的数据
CONVERT(varchar(20), date, 23)	select CONVERT(varchar(12) , getdate(), 23 )	2020-05-25(格式转换)
聚合函数	COUNT、SUM、MIN 和 MAX	求记录数，求和，最小值，最大值
Case函数	case type when '1' then '进场' else '退场' end	条件判断

SQL Server查询语句

本月新开，本月退场，在建项目，工人总数

Select
(Select COUNT(Fid) from SM_Project where DATEDIFF(dd,startDate,GETDATE())>0 and DATEDIFF(dd,startDate,GETDATE())<30 ) 本月新开,
(Select COUNT(Fid) from SM_Project where DATEDIFF(dd,completeDate,GETDATE())>0 and DATEDIFF(dd,completeDate,GETDATE())<30 ) 本月退场,
(Select COUNT(Fid) from SM_Project where DATEDIFF(dd,completeDate,GETDATE())<0 ) 在建项目,
(select COUNT(Fid) from SM_ProjectWorker ) 工人总数

查询30天内工人考勤情况

select COUNT(*) as 考勤人数,日期 
from 
(Select CONVERT(varchar(100), date, 23) as 日期,workerFid 
from SM_WorkerAttendance where DateDiff(dd,date,getdate())<=30  
group by CONVERT(varchar(100), date, 23),workerFid) as temp 
group by 日期

查询30天内工人进退场情况

select 
COUNT(case type when '1' then '进场' end )as 进场,
COUNT(case type when '0' then '退场' end )as 退场, 
CONVERT(varchar(10), date, 23) as 日期 
from View_SM_WorkerEntryExit 
where 
Datediff(dd,date,GETDATE()) <30 group by CONVERT(varchar(10), date, 23) 

根据身份证号码查询工人年龄分布

select 
case 
when age>=1 and age <29 then '29' 
when age>=30 and age <39 then '30~39'
when age>=40 and age <49 then '40~49' 
when age>=50 and age <55 then '50~55'  
else '>55' 
end as 年龄范围,
count(*) as 人数
from (select DateDiff(YEAR,birthday ,getdate()) as age,birthday from 
(select idCardNumber, CONVERT(datetime, substring(idCardNumber,7,4)+'-'+substring(idCardNumber,11,2)+'-'+substring(idCardNumber,13,2)) birthday from [View_SM_ProjectWorker] ) t )
a
group by
case 
when age>=1 and age <29 then '29' 
when age>=30 and age <39 then '30~39'
when age>=40 and age <49 then '40~49' 
when age>=50 and age <55 then '50~55'  
else '>55' end
order by 人数 Desc

根据身份证查询工人籍贯分布

SELECT
  case left(idCardNumber,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 籍贯地,COUNT(*) 人数
  from View_SM_ProjectWorker group by 
  case left(idCardNumber,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 人数 desc
  

查询数量前十的工种

Select top(10) workType as 工种, COUNT(Fid)as 人数 
from View_SM_ProjectWorker  
Group by workType order by 人数 Desc