{"id":41539,"date":"2023-10-19T19:25:00","date_gmt":"2023-08-31T15:27:36","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8colaboratory%e8%bf%9b%e8%a1%8csqlpostgresql%e6%93%8d%e4%bd%9c\/"},"modified":"2024-05-04T05:03:37","modified_gmt":"2024-05-03T21:03:37","slug":"%e4%bd%bf%e7%94%a8colaboratory%e8%bf%9b%e8%a1%8csqlpostgresql%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8colaboratory%e8%bf%9b%e8%a1%8csqlpostgresql%e6%93%8d%e4%bd%9c\/","title":{"rendered":"\u4f7f\u7528Colaboratory\u8fdb\u884cSQL:PostgreSQL\u64cd\u4f5c"},"content":{"rendered":"

\u672c\u6587\u662fPostgreSQL Advent Calendar 2022\u7684\u7b2c\u516d\u5929\u3002<\/p>\n

\u8fd9\u7bc7\u6587\u7ae0\u662f\u4e4b\u524d\u7531\u85e4\u4e95\u6b63\u7537\u5148\u751f\u64b0\u5199\u7684\u6587\u7ae0\u3002<\/p>\n

 <\/p>\n

\u6700\u521d<\/h1>\n

 <\/p>\n

\u6b63\u5728\u4f7f\u7528\u7684\u662fPostgreSQL<\/p>\n

\u4e3a\u4e86\u5b66\u4e60SQL(PostgreSQL)\uff0c\u6709\u4e00\u4e9b\u53ef\u4ee5\u5728\u7ebf\u5b66\u4e60\u7684\u5730\u65b9\uff0c\u6bd4\u5982psql-basics\u3002\u4e0d\u8fc7\uff0c\u5c4f\u5e55\u6709\u70b9\u5c0f\u3002<\/p>\n

\u8fd9\u6b21\u6211\u60f3\u5728\u6211\u719f\u6089\u7684Google Colaboratory\u4e0a\u8bd5\u4e00\u8bd5\u3002<\/p>\n

\u4ee3\u7801<\/h1>\n
%%<\/span>capture<\/span>\r\n\r\n# https:\/\/www.postgresql.org\/download\/linux\/debian\/\r\n<\/span>\r\n!<\/span>sudo<\/span> sh<\/span> -<\/span>c<\/span> '<\/span>echo <\/span>\"<\/span>deb http:\/\/apt.postgresql.org\/pub\/repos\/apt $(lsb_release -cs)-pgdg main<\/span>\"<\/span> > \/etc\/apt\/sources.list.d\/pgdg.list<\/span>'<\/span>\r\n!<\/span>wget<\/span> --<\/span>quiet<\/span> -<\/span>O<\/span> -<\/span> https<\/span>:<\/span>\/\/<\/span>www<\/span>.<\/span>postgresql<\/span>.<\/span>org<\/span>\/<\/span>media<\/span>\/<\/span>keys<\/span>\/<\/span>ACCC4CF8<\/span>.<\/span>asc<\/span> |<\/span> sudo<\/span> apt<\/span>-<\/span>key<\/span> add<\/span> -<\/span>\r\n!<\/span>sudo<\/span> apt<\/span>-<\/span>get<\/span> update<\/span>\r\n!<\/span>sudo<\/span> apt<\/span>-<\/span>get<\/span> -<\/span>y<\/span> install<\/span> postgresql<\/span>-<\/span>15<\/span>\r\n!<\/span>sudo<\/span> service<\/span> postgresql<\/span> start<\/span>\r\n\r\n# Setup a password `postgres` for username `postgres`\r\n<\/span>!<\/span>sudo<\/span> -<\/span>u<\/span> postgres<\/span> psql<\/span> -<\/span>U<\/span> postgres<\/span> -<\/span>c<\/span> \"<\/span>ALTER USER postgres PASSWORD <\/span>'<\/span>postgres<\/span>'<\/span>;<\/span>\"<\/span>\r\n\r\n# Setup a database with name `tutorial` to be used\r\n<\/span>!<\/span>sudo<\/span> -<\/span>u<\/span> postgres<\/span> psql<\/span> -<\/span>U<\/span> postgres<\/span> -<\/span>c<\/span> '<\/span>DROP DATABASE IF EXISTS tutorial;<\/span>'<\/span>\r\n!<\/span>sudo<\/span> -<\/span>u<\/span> postgres<\/span> psql<\/span> -<\/span>U<\/span> postgres<\/span> -<\/span>c<\/span> '<\/span>CREATE DATABASE tutorial;<\/span>'<\/span>\r\n\r\n# set connection\r\n<\/span>%<\/span>env<\/span> DATABASE_URL<\/span>=<\/span>postgresql<\/span>:<\/span>\/\/<\/span>postgres<\/span>:<\/span>postgres<\/span>@localhost<\/span>:<\/span>5432<\/span>\/<\/span>tutorial<\/span>\r\n#To load the sql extention to start using %%sql\r\n<\/span>%<\/span>load_ext<\/span> sql<\/span>\r\n%<\/span>config<\/span> SqlMagic<\/span>.<\/span>autopandas<\/span> =<\/span> True<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u76f4\u63a5\u6267\u884c”!sudo apt-get -y install postgresql”\uff0cColaboratory\u4f1a\u4e0b\u8f7d\u7248\u672c12\u3002
\n\u4e3a\u4e86\u4e0b\u8f7d\u6700\u65b0\u7248\u672c\uff0c\u6211\u5c06\u6309\u7167\u5b98\u65b9\u7f51\u7ad9\u7684\u6307\u793a\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n
\u5173\u4e8e\u5bc6\u7801\u8bbe\u7f6e\u7b49\u4e8b\u9879\uff0c\u6211\u662f\u4eceGoogle Colaboratory\u7684\u6559\u7a0b\u4e2d\u83b7\u53d6\u7684\u3002<\/p>\n
\u8f93\u5165\u6570\u636e<\/h1>\n
# https:\/\/github.com\/simongeek\/PandasDA\r\n<\/span>\r\n!<\/span>wget<\/span> -<\/span>P<\/span> \/<\/span>tmp<\/span>\/<\/span> https<\/span>:<\/span>\/\/<\/span>raw<\/span>.<\/span>githubusercontent<\/span>.<\/span>com<\/span>\/<\/span>simongeek<\/span>\/<\/span>PandasDA<\/span>\/<\/span>master<\/span>\/<\/span>weather<\/span>.<\/span>csv<\/span>\r\n\r\nimport<\/span> pandas<\/span> as<\/span> pd<\/span>\r\ndf<\/span> =<\/span> pd<\/span>.<\/span>read_csv<\/span>(<\/span>'<\/span>\/tmp\/weather.csv<\/span>'<\/span>)<\/span>\r\n\r\n# Make variables some friendlier names for users\r\n<\/span>old_names<\/span> =<\/span> [<\/span>'<\/span>Max TemperatureF<\/span>'<\/span>,<\/span> '<\/span>Min TemperatureF<\/span>'<\/span>,<\/span> '<\/span>Mean TemperatureF<\/span>'<\/span>,<\/span> '<\/span>Max Dew PointF<\/span>'<\/span>,<\/span> '<\/span>MeanDew PointF<\/span>'<\/span>,<\/span>\r\n             '<\/span>Min DewpointF<\/span>'<\/span>,<\/span> '<\/span>Max Humidity<\/span>'<\/span>,<\/span>\r\n             '<\/span> Mean Humidity<\/span>'<\/span>,<\/span> '<\/span> Min Humidity<\/span>'<\/span>,<\/span> '<\/span> Max Sea Level PressureIn<\/span>'<\/span>,<\/span> '<\/span> Mean Sea Level PressureIn<\/span>'<\/span>,<\/span>\r\n             '<\/span> Min Sea Level PressureIn<\/span>'<\/span>,<\/span> '<\/span> Max VisibilityMiles<\/span>'<\/span>,<\/span> '<\/span> Mean VisibilityMiles<\/span>'<\/span>,<\/span>\r\n             '<\/span> Min VisibilityMiles<\/span>'<\/span>,<\/span> '<\/span> Max Wind SpeedMPH<\/span>'<\/span>,<\/span> '<\/span> Mean Wind SpeedMPH<\/span>'<\/span>,<\/span> '<\/span> Max Gust SpeedMPH<\/span>'<\/span>,<\/span> '<\/span>PrecipitationIn<\/span>'<\/span>,<\/span>\r\n             '<\/span> CloudCover<\/span>'<\/span>,<\/span> '<\/span> WindDirDegrees<\/span>'<\/span>,<\/span> '<\/span> Events<\/span>'<\/span>]<\/span>\r\nnew_names<\/span> =<\/span> [<\/span>'<\/span>max_Temp<\/span>'<\/span>,<\/span> '<\/span>min_Temp<\/span>'<\/span>,<\/span> '<\/span>mean_Temp<\/span>'<\/span>,<\/span> '<\/span>max_Dew<\/span>'<\/span>,<\/span> '<\/span>mean_Dew<\/span>'<\/span>,<\/span> '<\/span>min_Dew<\/span>'<\/span>,<\/span> '<\/span>max_Hum<\/span>'<\/span>,<\/span> '<\/span>mean_Hum<\/span>'<\/span>,<\/span> '<\/span>min_Hum<\/span>'<\/span>,<\/span> '<\/span>max_Press<\/span>'<\/span>,<\/span>\r\n             '<\/span>min_Press<\/span>'<\/span>,<\/span> '<\/span>mean_Press<\/span>'<\/span>,<\/span> '<\/span>max_Vis<\/span>'<\/span>,<\/span> '<\/span>mean_Vis<\/span>'<\/span>,<\/span>\r\n             '<\/span>min_Vis<\/span>'<\/span>,<\/span> '<\/span>max_Wind<\/span>'<\/span>,<\/span> '<\/span>mean_Wind<\/span>'<\/span>,<\/span> '<\/span>max_Gust<\/span>'<\/span>,<\/span> '<\/span>preIn<\/span>'<\/span>,<\/span> '<\/span>cloud<\/span>'<\/span>,<\/span> '<\/span>Wind_Dir<\/span>'<\/span>,<\/span> '<\/span>events<\/span>'<\/span>]<\/span>\r\ndf<\/span>.<\/span>rename<\/span>(<\/span>columns<\/span>=<\/span>dict<\/span>(<\/span>zip<\/span>(<\/span>old_names<\/span>,<\/span> new_names<\/span>)),<\/span> inplace<\/span>=<\/span>True<\/span>)<\/span>\r\n\r\ndf<\/span>.<\/span>columns<\/span> =<\/span> [<\/span>c<\/span>.<\/span>lower<\/span>()<\/span> for<\/span> c<\/span> in<\/span> df<\/span>.<\/span>columns<\/span>]<\/span> # PostgreSQL doesn't like capitals or spaces\r\n<\/span>\r\ndf<\/span>[<\/span>'<\/span>prein<\/span>'<\/span>]<\/span>=<\/span>df<\/span>[<\/span>'<\/span>prein<\/span>'<\/span>].<\/span>mask<\/span>(<\/span>df<\/span>[<\/span>'<\/span>prein<\/span>'<\/span>]<\/span>==<\/span>'<\/span>T<\/span>'<\/span>,<\/span>0.01<\/span>)<\/span> # Digitize T of PrecipitationIn\r\n<\/span>\r\nfrom<\/span> sqlalchemy.types<\/span> import<\/span> Integer<\/span>,<\/span>Text<\/span>,<\/span>Numeric<\/span>,<\/span>SmallInteger<\/span>,<\/span>Date<\/span>\r\n\r\ntable_dict<\/span>=<\/span>{<\/span>'<\/span>zip<\/span>'<\/span>:<\/span> Text<\/span>(),<\/span>\r\n '<\/span>cloud<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>wind_dir<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>index<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>max_temp<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>mean_temp<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>min_temp<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>max_dew<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>mean_dew<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>min_dew<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>max_hum<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>mean_hum<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>min_hum<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>max_press<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>min_press<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>mean_press<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>max_vis<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>mean_vis<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>min_vis<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>max_wind<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>mean_wind<\/span>'<\/span>:<\/span> SmallInteger<\/span>(),<\/span>\r\n '<\/span>max_gust<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>3<\/span>,<\/span>1<\/span>),<\/span>\r\n '<\/span>pdt<\/span>'<\/span>:<\/span> Date<\/span>(),<\/span>\r\n '<\/span>prein<\/span>'<\/span>:<\/span> Numeric<\/span>(<\/span>4<\/span>,<\/span>3<\/span>),<\/span>\r\n '<\/span>events<\/span>'<\/span>:<\/span> Text<\/span>()}<\/span>\r\n\r\nfrom<\/span> sqlalchemy<\/span> import<\/span> create_engine<\/span>\r\n\r\nengine<\/span> =<\/span> create_engine<\/span>(<\/span>'<\/span>postgresql:\/\/postgres:postgres@localhost:5432\/tutorial<\/span>'<\/span>)<\/span>\r\n\r\ndf<\/span>.<\/span>to_sql<\/span>(<\/span>\"<\/span>weather<\/span>\"<\/span>,<\/span> engine<\/span>,<\/span>dtype<\/span>=<\/span>table_dict<\/span>,<\/span> index<\/span>=<\/span>False<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u6211\u53ef\u4ee5\u81ea\u52a8\u4ece\u5e26\u6709\u6807\u9898\u7684CSV\u6587\u4ef6\u4e2d\u521b\u5efa\u4e00\u4e2a\u8868\u683c\u5417\uff1f<\/p>\n
\u6570\u636e\u6765\u6e90\u4e8e\u52a0\u5229\u798f\u5c3c\u4e9a\u5dde\u65e7\u91d1\u5c71\u6e7e\u533a\u7684\u5929\u6c14\u6570\u636e\u7684Pandas + Seaborn\u6559\u7a0b\u3002<\/p>\n
\u7531\u4e8e\u901a\u8fc7to_sql()\u51fd\u6570\u7b80\u5355\u5730\u8bfb\u53d6\u6570\u636e\u7c7b\u578b\u4f1a\u53d8\u5f97\u975e\u5e38\u5947\u602a\uff0c\u56e0\u6b64\u6211\u8fdb\u884c\u4e86\u4fee\u6b63\u3002<\/p>\n
\u4fee\u6b63\u6570\u636e\u7c7b\u578b\u7684\u65b9\u6cd5<\/h2>\n
# https:\/\/stackoverflow.com\/questions\/109325\/postgresql-describe-table\r\n<\/span>\r\n%%<\/span>sql<\/span>\r\nselect<\/span> column_name<\/span>,<\/span> data_type<\/span>,<\/span> character_maximum_length<\/span>,<\/span> column_default<\/span>,<\/span> is_nullable<\/span>\r\nfrom<\/span> INFORMATION_SCHEMA<\/span>.<\/span>COLUMNS<\/span> where<\/span> table_name<\/span> =<\/span> '<\/span>weather<\/span>'<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8e\u5728\u8fd9\u4e2a\u67e5\u8be2\u4e2d\u5f97\u5230\u7684\u7ed3\u679c\u4e0epsql -c “\\d weather”\u76f8\u540c\uff0c\u6211\u67e5\u770b\u4e86data_type\u7684\u503c\u5e76\u8fdb\u884c\u4e86\u4fee\u6539\uff0c\u53c2\u8003\u4e86The Type Hierarchy – SQLAlchemy\u548cpandas.DataFrame.to_sql\u3002<\/p>\n
\u8003\u8bd5<\/h1>\n
%%<\/span>sql<\/span>\r\nselect<\/span> *<\/span> from<\/span> weather<\/span> limit<\/span> 10<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u4e8b\u60c5\u987a\u5229\u8fdb\u884c\u4e86\u3002<\/p>\n
\u5173\u4e8epsql<\/h2>\n
\u53ea\u8981\u8fd0\u884csudo -u postgres psql -U postgres -d tutorial\uff0c\u57fa\u672c\u4e0a\u5c31\u4f1a\u51fa\u73b0psql\u63d0\u793a\u7b26\uff0c\u4f46\u65e0\u6cd5\u770b\u5230\u8f93\u5165\u503c\uff0c\u5e76\u4e14\u53ea\u80fd\u4ee5\u7b80\u5355\u65b9\u5f0f\u4f7f\u7528\u3002<\/p>\n
\u6709\u6ca1\u6709\u4ec0\u4e48\u597d\u7684\u65b9\u6cd5\u5462\uff1f<\/p>\n
\u603b\u7ed3<\/h1>\n
\u6682\u65f6\u6765\u8bf4\uff0c\u51c6\u5907\u5b8c\u6bd5\u4e86\u3002<\/p>\n
\u6211\u4eec\u5728\u7ee7\u7eed\u8fdb\u884c\u65f6\uff0c\u8fb9\u9605\u8bfb\u5404\u79cd\u4e66\u7c4d\u3002<\/p>\n
\u201c\u8d60\u54c1\u201d or “\u9644\u52a0\u8d60\u54c1”<\/h2>\n
 <\/p>\n
\u5728\u8fd9\u9879\u7ec3\u4e60\u4e2d\u8981\u4f7f\u7528\u7684\u90ae\u653f\u7f16\u7801\u6570\u636e\u3002<\/p>\n
\u7531\u4e8e\u5c06PDF\u6587\u6863\u590d\u5236\u7c98\u8d34\u65f6\u4f1a\u51fa\u73b0\u504f\u79fb\u7684\u60c5\u51b5\u3002<\/p>\n
!<\/span>wget<\/span> --<\/span>quiet<\/span>  http<\/span>:<\/span>\/\/<\/span>www<\/span>.<\/span>post<\/span>.<\/span>japanpost<\/span>.<\/span>jp<\/span>\/<\/span>zipcode<\/span>\/<\/span>dl<\/span>\/<\/span>kogaki<\/span>\/<\/span>zip<\/span>\/<\/span>ken_all<\/span>.<\/span>zip<\/span>\r\n\r\n!<\/span>unzip<\/span> ken_all<\/span>.<\/span>zip<\/span>\r\n<\/code><\/pre>\n
%%<\/span>sql<\/span>\r\nDROP<\/span> TABLE<\/span> IF<\/span> EXISTS<\/span> zip<\/span>;<\/span>\r\n\r\nCREATE<\/span> TABLE<\/span> zip<\/span> (<\/span>\r\nlgcode<\/span> char<\/span>(<\/span>5<\/span>),<\/span> \r\noldzip<\/span> char<\/span>(<\/span>5<\/span>),<\/span>\r\nnewzip<\/span> char<\/span>(<\/span>7<\/span>),<\/span>\r\nprefkana<\/span> text<\/span>,<\/span>\r\ncitykana<\/span> text<\/span>,<\/span>\r\nareakana<\/span> text<\/span>,<\/span>\r\npref<\/span> text<\/span>,<\/span>\r\ncity<\/span> text<\/span>,<\/span>\r\narea<\/span> text<\/span>,<\/span>\r\nlargearea<\/span> integer<\/span>,<\/span>\r\nkoaza<\/span> integer<\/span>,<\/span>\r\nchoume<\/span> integer<\/span>,<\/span>\r\nsmallarea<\/span> integer<\/span>,<\/span>\r\nchange<\/span> integer<\/span>,<\/span>\r\nreason<\/span> integer<\/span>\r\n);<\/span>\r\n\r\n-- https:\/\/www.postgresql.jp\/document\/9.3\/html\/sql-copy.html<\/span>\r\nCOPY<\/span> zip<\/span> FROM<\/span> '\/content\/KEN_ALL.CSV'<\/span> (<\/span>FORMAT<\/span> csv<\/span>,<\/span> ENCODING<\/span> 'sjis'<\/span>);<\/span>\r\n<\/code><\/pre>\n
%%<\/span>sql<\/span>\r\n\r\nselect<\/span> *<\/span> from<\/span> zip<\/span>\r\nwhere<\/span> newzip<\/span> between<\/span> '1000000'<\/span> and<\/span> '2000000'<\/span> limit<\/span> 5<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u505a\u5f97\u975e\u5e38\u6f02\u4eae\u3002<\/p>\n
\u5956\u54c12<\/h2>\n
\u65e2\u7ecf\u5c06\u5176\u52a0\u5165\u5230Advent Calender\u4e2d\uff0c\u4f46\u8fd8\u60f3\u8981\u66f4\u591a\u7684\u6570\u636e\u3002
\n\u8fd8\u6709\u4e00\u4e9b\u6c14\u8c61\u5385\u7684\u6570\u636e\uff0c\u8bd5\u4e86\u4e00\u4e0b\u7ed3\u679c\u5374\u662f\u5931\u8d25\u4e86\u30fb\u30fb\u30fb\u30fborz<\/p>\n
\u6570\u636e\u5904\u7406\u548c\u5bfc\u5165<\/h3>\n
# \u30c7\u30fc\u30bf\u306e\u5165\u624b\r\n#\u3000\u662d\u548c26\u5e74\uff081951\u5e74\uff09\u4ee5\u964d\u306e\u6885\u96e8\u5165\u308a\u3068\u6885\u96e8\u660e\u3051\uff08\u78ba\u5b9a\u5024\uff09\r\n# https:\/\/www.data.jma.go.jp\/cpd\/baiu\/index.html\r\n<\/span>\r\n!<\/span>wget<\/span> \"<\/span>https:\/\/www.data.jma.go.jp\/cpd\/baiu\/tsuyu_iriake.csv<\/span>\"<\/span>\r\n\r\n# csv\u306fsjis\u3060\u3057\u3001\u30d8\u30c3\u30c0\u30fc\u306f\uff12\u91cd\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u305d\u306e\u307e\u307e\u53d6\u308a\u8fbc\u3081\u306a\u3044\u306e\u3067pandas\u306b\u304a\u4efb\u305b\r\n<\/span>import<\/span> pandas<\/span> as<\/span> pd<\/span>\r\n\r\ndf<\/span> =<\/span> pd<\/span>.<\/span>read_csv<\/span>(<\/span>'<\/span>tsuyu_iriake.csv<\/span>'<\/span>,<\/span> encoding<\/span>=<\/span>'<\/span>sjis<\/span>'<\/span>,<\/span>header<\/span>=<\/span>[<\/span>0<\/span>,<\/span>1<\/span>])<\/span>\r\n\r\n# https:\/\/stackoverflow.com\/questions\/45670981\/reading-csv-with-sparsely-labeled-column-headers-using-pandas\r\n<\/span>\r\ndf<\/span>.<\/span>columns<\/span> =<\/span> pd<\/span>.<\/span>MultiIndex<\/span>.<\/span>from_arrays<\/span>(<\/span>\r\n    [<\/span>df<\/span>.<\/span>columns<\/span>.<\/span>get_level_values<\/span>(<\/span>0<\/span>).<\/span>to_series<\/span>().<\/span>mask<\/span>(<\/span>lambda<\/span> x<\/span>:<\/span> x<\/span>.<\/span>str<\/span>.<\/span>startswith<\/span>(<\/span>'<\/span>Unnamed<\/span>'<\/span>)).<\/span>ffill<\/span>(),<\/span> df<\/span>.<\/span>columns<\/span>.<\/span>get_level_values<\/span>(<\/span>1<\/span>)]<\/span>\r\n)<\/span>\r\n\r\n# \u4e0a\u306e\u3084\u308a\u65b9\u3067\u5217\u306e\u540d\u524d\u3092\u6574\u3048\u308b\r\n# \u305d\u306e\u3042\u3068\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u53d6\u308a\u8fbc\u3080\u6642\u306e\u30c7\u30fc\u30bf\u578b\u3092\u6574\u3048\u308b\u305f\u3081\u306b\u5e73\u5747\u5024\u306e\u884c\u3092\u524a\u9664\u3059\u308b\u3002\r\n<\/span>df<\/span> =<\/span> df<\/span>[<\/span>1<\/span>:]<\/span>\r\n\r\n# \u3059\u3054\u3044\u6c5a\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3051\u3069\u3001\u5730\u65b9\u6bce\u30eb\u30fc\u30d7\u3055\u305b\u3066\u3001\u30b3\u30e9\u30e0\u3092\uff12\u3064\u4f5c\u3063\u3066\u3044\u308b\u3002\r\n<\/span>ddf<\/span>=<\/span>pd<\/span>.<\/span>DataFrame<\/span>()<\/span>\r\nfor<\/span> i<\/span> in<\/span> df<\/span>.<\/span>columns<\/span>.<\/span>get_level_values<\/span>(<\/span>level<\/span>=<\/span>0<\/span>).<\/span>drop_duplicates<\/span>()[<\/span>1<\/span>:]:<\/span>\r\n    _df<\/span> =<\/span> df<\/span>[<\/span>i<\/span>]<\/span>\r\n    col_name<\/span> =<\/span> i<\/span> +<\/span> \"<\/span>_\u5165\u308a<\/span>\"<\/span>\r\n    ddf<\/span>[<\/span>col_name<\/span>]<\/span>=<\/span> df<\/span>.<\/span>iloc<\/span>[:,<\/span>0<\/span>].<\/span>astype<\/span>(<\/span>'<\/span>str<\/span>'<\/span>)<\/span>+<\/span>\"<\/span>-<\/span>\"<\/span>+<\/span>_df<\/span>.<\/span>iloc<\/span>[:,<\/span>0<\/span>].<\/span>astype<\/span>(<\/span>'<\/span>str<\/span>'<\/span>)<\/span>+<\/span>\"<\/span>-<\/span>\"<\/span>+<\/span>_df<\/span>.<\/span>iloc<\/span>[:,<\/span>1<\/span>].<\/span>astype<\/span>(<\/span>'<\/span>str<\/span>'<\/span>)<\/span>\r\n    col_name<\/span> =<\/span> i<\/span> +<\/span> \"<\/span>_\u958b\u3051<\/span>\"<\/span>\r\n    ddf<\/span>[<\/span>col_name<\/span>]<\/span>=<\/span> df<\/span>.<\/span>iloc<\/span>[:,<\/span>0<\/span>].<\/span>astype<\/span>(<\/span>'<\/span>str<\/span>'<\/span>)<\/span>+<\/span>\"<\/span>-<\/span>\"<\/span>+<\/span>_df<\/span>.<\/span>iloc<\/span>[:,<\/span>2<\/span>].<\/span>astype<\/span>(<\/span>'<\/span>str<\/span>'<\/span>)<\/span>+<\/span>\"<\/span>-<\/span>\"<\/span>+<\/span>_df<\/span>.<\/span>iloc<\/span>[:,<\/span>3<\/span>].<\/span>astype<\/span>(<\/span>'<\/span>str<\/span>'<\/span>)<\/span>\r\n\r\n# \u53d6\u5f97\u3067\u304d\u3066\u3044\u306a\u3044\u6708\u306b\u306f-9999\u304c\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u3001\u5168\u90e8\u524a\u9664\u3057\u3066\u6642\u9593\u306b\u5909\u63db\r\n<\/span>sql_data<\/span> =<\/span> ddf<\/span>.<\/span>replace<\/span>(<\/span>\"<\/span>^.*9999.*$<\/span>\"<\/span>,<\/span>\"\"<\/span>,<\/span>regex<\/span>=<\/span>True<\/span>).<\/span>apply<\/span>(<\/span>lambda<\/span> x<\/span>:<\/span> pd<\/span>.<\/span>to_datetime<\/span>(<\/span>x<\/span>,<\/span>infer_datetime_format<\/span>=<\/span>True<\/span>))<\/span>\r\n\r\n# \u7528\u610f\u3057\u3066\u3044\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u5165\u308c\u8fbc\u3080\r\n<\/span>from<\/span> sqlalchemy<\/span> import<\/span> create_engine<\/span>\r\nfrom<\/span> sqlalchemy.types<\/span> import<\/span> Date<\/span>,<\/span> DateTime<\/span>\r\n\r\nengine<\/span> =<\/span> create_engine<\/span>(<\/span>'<\/span>postgresql:\/\/postgres:postgres@localhost:5432\/tutorial<\/span>'<\/span>)<\/span>\r\n\r\n\r\nsql_data<\/span>.<\/span>to_sql<\/span>(<\/span>\"<\/span>\u6885\u96e8<\/span>\"<\/span>,<\/span> engine<\/span>,<\/span> index<\/span>=<\/span>False<\/span>,<\/span> if_exists<\/span>=<\/span>'<\/span>replace<\/span>'<\/span>,<\/span> dtype<\/span>=<\/span>{<\/span>k<\/span>:<\/span> Date<\/span>()<\/span> for<\/span> k<\/span> in<\/span> sql_data<\/span>.<\/span>columns<\/span>})<\/span>\r\n\r\n<\/code><\/pre>\n
%%<\/span>sql<\/span>\r\n\r\nselect<\/span> *<\/span> from<\/span> \u6885\u96e8<\/span> limit<\/span> 5<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u597d\u5728\u6700\u540e\u89e3\u51b3\u4e86\u3002<\/p>\n
%%<\/span>sql<\/span>\r\nselect<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> as<\/span> \u5e74<\/span>,<\/span> \u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> -<\/span> \u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> as<\/span> \u671f\u9593<\/span>\r\nfrom<\/span> \u6885\u96e8<\/span> ORDER<\/span> BY<\/span> \u671f\u9593<\/span> desc<\/span>\r\nlimit<\/span> 5<\/span>;<\/span>\r\n<\/code><\/pre>\n
\n
\n\u5e74\u671f\u959301962601198260219755932021594199558<\/div>\n<\/div>\n
\u51b2\u7ef3\u7684\u6885\u96e8\u5b63\u5f88\u957f\uff0c\u5bf9\u5427\uff1f<\/p>\n
\u7136\u800c\uff0c\u4e8b\u5b9e\u4e0a\u54ea\u91cc\u662f\u6700\u957f\u7684\u5462\uff1f<\/p>\n
\u786e\u8ba4\u6885\u96e8\u5b63\u8282\u7684\u65f6\u95f4<\/h3>\n
%<\/span>config<\/span> SqlMagic<\/span>.<\/span>autopandas<\/span> =<\/span> False<\/span>\r\n<\/code><\/pre>\n
%%<\/span>sql<\/span>\r\nSELECT<\/span> concat<\/span>(<\/span>'SELECT <\/span>''<\/span>'<\/span>,<\/span>\r\nB<\/span>.<\/span>column_name<\/span>,<\/span>\r\n'<\/span>''<\/span> AS \u5217\u540d, extract(YEAR FROM '<\/span>,<\/span>\r\ncolumn_name<\/span>,<\/span>\r\n') AS \u5e74,'<\/span>,<\/span>\r\ncolumn_name<\/span>,<\/span>\r\n' AS \u65e5\u4ed8 FROM \u6885\u96e8 UNION ALL'<\/span>)<\/span> FROM<\/span> \r\n(<\/span>select<\/span> column_name<\/span>\r\nfrom<\/span> INFORMATION_SCHEMA<\/span>.<\/span>COLUMNS<\/span>\r\nwhere<\/span> table_name<\/span> =<\/span> '\u6885\u96e8'<\/span>)<\/span> AS<\/span> B<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u751f\u6210\u63d0\u53d6\u6587\u672c\u5e76\u590d\u5236\u7c98\u8d34\u540e\u7a0d\u4f5c\u4fee\u6539\u3002<\/p>\n
%%<\/span>sql<\/span>\r\n\r\nCREATE<\/span> TABLE<\/span> \u6885\u96e8<\/span>_t<\/span>\r\nAS<\/span>\r\nSELECT<\/span> '\u6c96\u7e04\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6c96\u7e04\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6c96\u7e04\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u5944\u7f8e\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u5944\u7f8e\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u5944\u7f8e\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u5944\u7f8e\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u5944\u7f8e\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u5944\u7f8e\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u4e5d\u5dde\u5357\u90e8_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u4e5d\u5dde\u5357\u90e8<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u4e5d\u5dde\u5357\u90e8<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u4e5d\u5dde\u5357\u90e8_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u4e5d\u5dde\u5357\u90e8<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u4e5d\u5dde\u5357\u90e8<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff09_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff09<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff09<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff09_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff09<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff09<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u56db\u56fd\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u56db\u56fd\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u56db\u56fd\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u56db\u56fd\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u56db\u56fd\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u56db\u56fd\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u4e2d\u56fd\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u4e2d\u56fd\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u4e2d\u56fd\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u4e2d\u56fd\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u4e2d\u56fd\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u4e2d\u56fd\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u8fd1\u757f\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u8fd1\u757f\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u8fd1\u757f\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u8fd1\u757f\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u8fd1\u757f\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u8fd1\u757f\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6771\u6d77\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6771\u6d77\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6771\u6d77\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6771\u6d77\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6771\u6d77\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6771\u6d77\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u95a2\u6771\u7532\u4fe1\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u95a2\u6771\u7532\u4fe1\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u95a2\u6771\u7532\u4fe1\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u95a2\u6771\u7532\u4fe1\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u95a2\u6771\u7532\u4fe1\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u95a2\u6771\u7532\u4fe1\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u5317\u9678\u5730\u65b9_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u5317\u9678\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u5317\u9678\u5730\u65b9<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u5317\u9678\u5730\u65b9_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u5317\u9678\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u5317\u9678\u5730\u65b9<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6771\u5317\u5357\u90e8_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6771\u5317\u5357\u90e8<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6771\u5317\u5357\u90e8<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6771\u5317\u5357\u90e8_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6771\u5317\u5357\u90e8<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6771\u5317\u5357\u90e8<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6771\u5317\u5317\u90e8_\u5165\u308a'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6771\u5317\u5317\u90e8<\/span>_<\/span>\u5165\u308a<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6771\u5317\u5317\u90e8<\/span>_<\/span>\u5165\u308a<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span> UNION<\/span> ALL<\/span>\r\nSELECT<\/span> '\u6771\u5317\u5317\u90e8_\u958b\u3051'<\/span> AS<\/span> \u5217\u540d<\/span>,<\/span> extract<\/span>(<\/span>YEAR<\/span> FROM<\/span> \u6771\u5317\u5317\u90e8<\/span>_<\/span>\u958b\u3051<\/span>)<\/span> AS<\/span> \u5e74<\/span>,<\/span>\u6771\u5317\u5317\u90e8<\/span>_<\/span>\u958b\u3051<\/span> AS<\/span> \u65e5\u4ed8<\/span> FROM<\/span> \u6885\u96e8<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u800c\u4e14<\/p>\n
%%<\/span>sql<\/span>\r\n\r\nSELECT<\/span> A<\/span>.<\/span>\u5730\u65b9<\/span>,<\/span> A<\/span>.<\/span>\u5e74<\/span>,<\/span> B<\/span>.<\/span>\u65e5\u4ed8<\/span> \u958b\u3051\u65e5\u4ed8<\/span>,<\/span> A<\/span>.<\/span>\u65e5\u4ed8<\/span> \u5165\u308a\u65e5\u4ed8<\/span>,<\/span> (<\/span>B<\/span>.<\/span>\u65e5\u4ed8<\/span>-<\/span>A<\/span>.<\/span>\u65e5\u4ed8<\/span>)<\/span> \u65e5\u6570<\/span>\r\nFROM<\/span>\r\n(<\/span>select<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>1<\/span>)<\/span>  \u5730\u65b9<\/span>,<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>)<\/span>  \u5165\u308a\u958b\u3051<\/span>,<\/span>\u5e74<\/span>,<\/span> \u65e5\u4ed8<\/span>\r\nfrom<\/span> \u6885\u96e8<\/span>_t<\/span>\r\nWHERE<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>)<\/span>=<\/span>'\u5165\u308a'<\/span>)<\/span> A<\/span>\r\nJOIN<\/span>\r\n(<\/span>select<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>1<\/span>)<\/span>  \u5730\u65b9<\/span>,<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>)<\/span>  \u5165\u308a\u958b\u3051<\/span>,<\/span>\u5e74<\/span>,<\/span> \u65e5\u4ed8<\/span>\r\nfrom<\/span> \u6885\u96e8<\/span>_t<\/span>\r\nWHERE<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>)<\/span>=<\/span>'\u958b\u3051'<\/span>)<\/span> B<\/span>\r\nON<\/span> A<\/span>.<\/span>\u5730\u65b9<\/span>=<\/span>B<\/span>.<\/span>\u5730\u65b9<\/span> AND<\/span> A<\/span>.<\/span>\u5e74<\/span>=<\/span>B<\/span>.<\/span>\u5e74<\/span>\r\nORDER<\/span> BY<\/span> \u65e5\u6570<\/span> desc<\/span>;<\/span>\r\n<\/code><\/pre>\n
\n
\u5730\u65b9\u5e74\u958b\u3051\u65e5\u4ed8\u5165\u308a\u65e5\u4ed8\u65e5\u6570\u4e5d\u5dde\u5357\u90e819541954-08-011954-05-1380\u4e5d\u5dde\u5317\u90e8\u5730\u65b9\uff08\u5c71\u53e3\u770c\u3092\u542b\u3080\uff0919541954-08-011954-05-1380\u95a2\u6771\u7532\u4fe1\u5730\u65b919631963-07-241963-05-0679\u4e5d\u5dde\u5357\u90e819561956-07-131956-05-0173\u5944\u7f8e\u5730\u65b920102010-07-152010-05-0670<\/div>\n<\/div>\n
\u4ee5\u524d\u4e5d\u5dde\u7684\u6885\u96e8\u4f3c\u4e4e\u5f88\u957f\u3002<\/p>\n
%%<\/span>sql<\/span>\r\n\r\nSELECT<\/span> \u5730\u65b9<\/span>,<\/span>\u65e5\u4ed8<\/span> as<\/span> \u5165\u308a<\/span>,<\/span> \u958b\u3051<\/span>,<\/span> \u671f\u9593<\/span>\r\nFROM<\/span>\r\n(<\/span>select<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>1<\/span>)<\/span>  \u5730\u65b9<\/span>,<\/span>\u5e74<\/span>,<\/span> \u65e5\u4ed8<\/span>,<\/span>split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>)<\/span> as<\/span> \u5165\u308a\u958b\u3051<\/span>,<\/span>\r\nlag<\/span>(<\/span>\u65e5\u4ed8<\/span>)<\/span> OVER<\/span> (<\/span>PARTITION<\/span> BY<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>1<\/span>),<\/span> \u5e74<\/span> ORDER<\/span> BY<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>)<\/span> desc<\/span>)<\/span> as<\/span> \u958b\u3051<\/span>,<\/span>\r\n(<\/span>lag<\/span>(<\/span>\u65e5\u4ed8<\/span>)<\/span> OVER<\/span> (<\/span>PARTITION<\/span> BY<\/span> split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>1<\/span>),<\/span> \u5e74<\/span> )<\/span>  -<\/span> \u65e5\u4ed8<\/span>)<\/span> as<\/span> \u671f\u9593<\/span> \r\nfrom<\/span> \u6885\u96e8<\/span>_t<\/span>\r\norder<\/span> by<\/span> \u5730\u65b9<\/span>,<\/span> \u5e74<\/span>,<\/span>split_part<\/span>(<\/span>\"\u5217\u540d\"<\/span>,<\/span>'_'<\/span>,<\/span>2<\/span>))<\/span> as<\/span> T<\/span>\r\nWHERE<\/span> \u671f\u9593<\/span> IS<\/span> NOT<\/span> NULL<\/span>\r\nORDER<\/span> BY<\/span> \u671f\u9593<\/span> desc<\/span>\r\nlimit<\/span> 10<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u6211\u5c1d\u8bd5\u4f7f\u7528Windows\u51fd\u6570\u3002
\n\u7531\u4e8e\u65e0\u6cd5\u5728\u4e2d\u9014\u4f7f\u7528\u522b\u540d\uff0c\u6240\u4ee5\u4e0d\u592a\u65b9\u4fbf\u3002<\/div>\n","protected":false},"excerpt":{"rendered":"
\u672c\u6587\u662fPostgreSQL Advent Calendar 2022\u7684\u7b2c\u516d\u5929\u3002 \u8fd9\u7bc7\u6587\u7ae0\u662f\u4e4b\u524d\u7531\u85e4\u4e95\u6b63\u7537\u5148\u751f\u64b0 […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-41539","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u4f7f\u7528Colaboratory\u8fdb\u884cSQL:PostgreSQL\u64cd\u4f5c - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528colaboratory\u8fdb\u884csqlpostgresql\u64cd\u4f5c\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Colaboratory\u8fdb\u884cSQL:PostgreSQL\u64cd\u4f5c\" \/>\n<meta property=\"og:description\" content=\"\u672c\u6587\u662fPostgreSQL Advent Calendar 2022\u7684\u7b2c\u516d\u5929\u3002 \u8fd9\u7bc7\u6587\u7ae0\u662f\u4e4b\u524d\u7531\u85e4\u4e95\u6b63\u7537\u5148\u751f\u64b0 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528colaboratory\u8fdb\u884csqlpostgresql\u64cd\u4f5c\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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