“数据清洗,抽取”的版本间的差异

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1.爬取商城数据，并进行分析
  
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== 建表语句 ==
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'''具体步骤如下'''
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建库
 
  
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'''create database 库名;'''
 
  
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'''建表，Prosper借贷平台 共81个字段'''
 
  
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create table Prosper(
 
  
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ListingKey string ,
 
  
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ListingNumber int,
 
  
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ListingCreationDate TIMESTAMP,
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'''上传数据'''
  
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CreditGrade string,
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hadoop fs -mkdir -p /college
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hadoop fs -put /root/college/loan.csv /college
  
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Term int,
 
  
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LoanStatus string,
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'''创建数据库'''
  
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ClosedDate TIMESTAMP,
 
  
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BorrowerAPR float,
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create database 库名;
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create table 表名1(
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BorrowerRate float,
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id int,
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name string,
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LenderYield float,
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price int,
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views int,
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EstimatedEffectiveYield float,
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sales int,
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stock int
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EstimatedLoss float,
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)row format delimited
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fields terminated by ',';
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EstimatedReturn float,
 
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ProsperRating(numeric) int,
 
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ProsperRating (Alpha) string,
 
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ProsperScore int,
 
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ListingCategory (numeric) int,
 
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BorrowerState string,
 
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Occupation string,
 
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EmploymentStatus string,
 
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EmploymentStatusDuration int,
 
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IsBorrowerHomeowner string,
 
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CurrentlyInGroup string,
 
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GroupKey string,
 
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DateCreditPulled TIMESTAMP,
 
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CreditScoreRangeLower int,
 
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CreditScoreRangeUpper int,
 
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FirstRecordedCreditLine TIMESTAMP,
 
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CurrentCreditLines int,
 
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OpenCreditLines int,
 
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TotalCreditLinespast7years int,
 
  
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OpenRevolvingAccounts int,
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'''导入数据-》hive'''
  
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OpenRevolvingMonthlyPayment int,
 
  
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InquiriesLast6Months int,
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load data inpath '/college/loan.csv' into table 表名;
  
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TotalInquiries int,
 
  
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CurrentDelinquencies int,
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load data [local] inpath ‘/root/data’ into table psn; 表示本地而不是Hadoop
  
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AmountDelinquent int,
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'''创建新表存储'''
  
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DelinquenciesLast7Years int,
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create table 表名2 like 表名2;
  
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PublicRecordsLast10Years int,
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'''数据过滤'''
  
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PublicRecordsLast12Months int,
 
  
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RevolvingCreditBalance int,
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insert into 表名2
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select * from 表名1
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where not id is null and name is null and price is null and views is null and sales is null and stock is null
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and name not like '%包包%' and name not like'%衣%' and name not like'%女士%'
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group by id,name,price,views,sales,stock;
  
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BankcardUtilization float,
 
  
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AvailableBankcardCredit int,
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'''数据分析并下载'''
  
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TotalTrades int,
 
  
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TradesNeverDelinquent (percentage) float,
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INSERT OVERWRITE LOCAL DIRECTORY '/root/college022/’
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ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t’
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SELECT count(distinct author) FROM data;
  
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TradesOpenedLast6Months int,
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insert into table test partition(age='xx') select id,name,tel form perop;
  
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DebtToIncomeRatio float,
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'''数据切分'''
  
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IncomeRange string,
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select split(name, '\ ') from data
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where split(name, '\ ')[0]='Huawei/华为';
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IncomeVerifiable string,
 
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StatedMonthlyIncome double,
 
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LoanKey string,
 
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TotalProsperLoans int,
 
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TotalProsperPaymentsBilled int,
 
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OnTimeProsperPayments int,
 
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ProsperPaymentsLessThanOneMonthLate int,
 
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ProsperPaymentsOneMonthPlusLate int,
 
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ProsperPrincipalBorrowed int,
 
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ProsperPrincipalOutstanding double,
 
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ScorexChangeAtTimeOfListing int,
 
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LoanCurrentDaysDelinquent int,
 
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LoanFirstDefaultedCycleNumber int,
 
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LoanMonthsSinceOrigination int,
 
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LoanNumber int,
 
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LoanOriginalAmount int,
 
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LoanOriginationDate TIMESTAMP,
 
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LoanOriginationQuarter string,
 
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MemberKey string,
 
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MonthlyLoanPayment float,
 
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LP_CustomerPayments double,
 
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LP_CustomerPrincipalPayments double,
 
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LP_InterestandFees double,
 
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LP_ServiceFees double,
 
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LP_CollectionFees double,
 
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LP_GrossPrincipalLoss double,
 
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LP_NetPrincipalLoss double,
 
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LP_NonPrincipalRecoverypayments double,
 
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PercentFunded double,
 
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Recommendations int,
 
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InvestmentFromFriendsCount int,
 
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InvestmentFromFriendsAmount double,
 
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Investors int
 
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)row format delimited
 
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fields terminated by ',';
 
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提取有用数据建表
 
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create table test(
 
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LoanStatus string,
 
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BorrowerRate float,
 
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ProsperScore int,
 
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Occupation string,
 
−
 
 
−
EmploymentStatus string,
 
−
 
 
−
IsBorrowerHomeowner string,
 
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−
CreditScoreRangeLower int,
 
−
 
 
−
CreditScoreRangeUpper int,
 
−
 
 
−
IncomeRange string
 
−
 
 
−
)row format delimited
 
−
 
 
−
fields terminated by ',';
 

2020年11月18日 (三) 14:16的最新版本

1.爬取商城数据，并进行分析

具体步骤如下




上传数据

hadoop fs -mkdir -p /college hadoop fs -put /root/college/loan.csv /college


创建数据库


create database 库名; create table 表名1( id int, name string, price int, views int, sales int, stock int )row format delimited fields terminated by ',';

导入数据-》hive


load data inpath '/college/loan.csv' into table 表名;


load data [local] inpath ‘/root/data’ into table psn; 表示本地而不是Hadoop

创建新表存储

create table 表名2 like 表名2;

数据过滤


insert into 表名2 select * from 表名1 where not id is null and name is null and price is null and views is null and sales is null and stock is null and name not like '%包包%' and name not like'%衣%' and name not like'%女士%' group by id,name,price,views,sales,stock;


数据分析并下载


INSERT OVERWRITE LOCAL DIRECTORY '/root/college022/’ ROW FORMAT DELIMITED FIELDS TERMINATED BY '\t’ SELECT count(distinct author) FROM data;

insert into table test partition(age='xx') select id,name,tel form perop;

数据切分

select split(name, '\ ') from data where split(name, '\ ')[0]='Huawei/华为';

取自“http://www.openbrains.net/mediawiki/index.php?title=数据清洗,抽取&oldid=23759”