{"id":42200,"date":"2023-07-14T19:05:22","date_gmt":"2024-01-31T23:47:59","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8centos%e4%b8%8a%e5%ae%89%e8%a3%85postgresql%e3%80%82\/"},"modified":"2024-04-30T13:34:38","modified_gmt":"2024-04-30T05:34:38","slug":"%e5%9c%a8centos%e4%b8%8a%e5%ae%89%e8%a3%85postgresql%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8centos%e4%b8%8a%e5%ae%89%e8%a3%85postgresql%e3%80%82\/","title":{"rendered":"\u5728CentOS\u4e0a\u5b89\u88c5PostgreSQL"},"content":{"rendered":"
sshd:x:74:74:Privilege-separated SSH:\/var\/empty\/sshd:\/sbin\/nologin\r\nntp:x:38:38::\/etc\/ntp:\/sbin\/nologin\r\nchrony:x:995:993::\/var\/lib\/chrony:\/sbin\/nologin\r\ntcpdump:x:72:72::\/:\/sbin\/nologin\r\nsato:x:1000:1000::\/home\/sato:\/bin\/bash\r\n<\/code><\/pre>\n
[root@ik1-305-12909 zipfile]# # yum -y install postgresql-server\r\n[root@ik1-305-12909 zipfile]#  yum -y install postgresql-server\r\nLoaded plugins: fastestmirror, langpacks\r\nLoading mirror speeds from cached hostfile\r\n * base: ftp.iij.ad.jp\r\n * epel: mirror.dmmlabs.jp\r\n * extras: ftp.iij.ad.jp\r\n * updates: ftp.iij.ad.jp\r\nResolving Dependencies\r\n--> Running transaction check\r\n---> Package postgresql-server.x86_64 0:9.2.23-3.el7_4 will be installed\r\n--> Processing Dependency: postgresql-libs(x86-64) = 9.2.23-3.el7_4 for package: postgresql-server-9.2.23-3.el7_4.x86_64\r\n--> Processing Dependency: postgresql(x86-64) = 9.2.23-3.el7_4 for package: postgresql-server-9.2.23-3.el7_4.x86_64\r\n--> Processing Dependency: libpq.so.5()(64bit) for package: postgresql-server-9.2.23-3.el7_4.x86_64\r\n--> Running transaction check\r\n---> Package postgresql.x86_64 0:9.2.23-3.el7_4 will be installed\r\n---> Package postgresql-libs.x86_64 0:9.2.23-3.el7_4 will be installed\r\n--> Finished Dependency Resolution\r\n\r\nDependencies Resolved\r\n\r\n====================================================================================================================\r\n Package                          Arch                  Version                        Repository              Size\r\n====================================================================================================================\r\nInstalling:\r\n postgresql-server                x86_64                9.2.23-3.el7_4                 updates                3.8 M\r\nInstalling for dependencies:\r\n postgresql                       x86_64                9.2.23-3.el7_4                 updates                3.0 M\r\n postgresql-libs                  x86_64                9.2.23-3.el7_4                 updates                234 k\r\n\r\nTransaction Summary\r\n====================================================================================================================\r\nInstall  1 Package (+2 Dependent packages)\r\n\r\nTotal download size: 7.0 M\r\nInstalled size: 33 M\r\nDownloading packages:\r\n(1\/3): postgresql-libs-9.2.23-3.el7_4.x86_64.rpm                                             | 234 kB  00:00:00\r\n(2\/3): postgresql-9.2.23-3.el7_4.x86_64.rpm                                                  | 3.0 MB  00:00:02\r\n(3\/3): postgresql-server-9.2.23-3.el7_4.x86_64.rpm                                           | 3.8 MB  00:00:02\r\n--------------------------------------------------------------------------------------------------------------------\r\nTotal                                                                               2.6 MB\/s | 7.0 MB  00:00:02\r\nRunning transaction check\r\nRunning transaction test\r\nTransaction test succeeded\r\nRunning transaction\r\n<\/code><\/pre>\n
postgresql.conf\u3092\u7de8\u96c6\u3059\u308b\u305f\u3081\u306b\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b\u3002\r\ncp postgresql.conf postgresql.conf.org\r\npostgresql.conf\u306e\u6700\u7d42\u884c\u306b\u8ffd\u8a18\u3059\u308b\u3002\r\necho \"listen_addresses = '*'\" >> \/var\/lib\/pgsql\/data\/postgresql.conf\r\n<\/code><\/pre>\n
postgresql\u3092\u30ea\u30b9\u30bf\u30fc\u30c8\u3059\u308b\r\nbash-4.2$ cp postgresql.conf postgresql.conf.org\r\nbash-4.2$ echo \"listen_addresses = '*'\" >> \/var\/lib\/pgsql\/data\/postgresql.conf\r\nbash-4.2$ cp pg_hba.conf pg_hba.conf.org\r\nbash-4.2$ echo \"# PostgreSQL Client Authentication Configuration File\" >  .\/pg_hba.conf\r\nbash-4.2$ echo \"# ===================================================\" >> .\/pg_hba.conf\r\nbash-4.2$ echo \"local all all              trust\"                      >> .\/pg_hba.conf\r\nbash-4.2$ echo \"host  all all 127.0.0.1\/32 trust\"                      >> .\/pg_hba.conf\r\nbash-4.2$ echo \"host  all all ::1\/128      trust\"                      >> .\/pg_hba.conf\r\nbash-4.2$ exit\r\nexit\r\n[root@ik1-305-12909 zipfile]# service postgresql restart\r\nRedirecting to \/bin\/systemctl restart  postgresql.service\r\n<\/code><\/pre>\n
postgresql\u306b\u30ed\u30b0\u30a4\u30f3\r\n# psql -U postgres\r\nData\u30d9\u30fc\u30b9\u306e\u30ea\u30b9\u30c8\u3092\u898b\u308b\r\npostgres=# \\l\r\n                             List of databases\r\n   Name    |  Owner   | Encoding  | Collate | Ctype |   Access privileges\r\n-----------+----------+-----------+---------+-------+-----------------------\r\n postgres  | postgres | SQL_ASCII | C       | C     |\r\n template0 | postgres | SQL_ASCII | C       | C     | =c\/postgres          +\r\n           |          |           |         |       | postgres=CTc\/postgres\r\n template1 | postgres | SQL_ASCII | C       | C     | =c\/postgres          +\r\n           |          |           |         |       | postgres=CTc\/postgres\r\n(3 rows)\r\n<\/code><\/pre>\n
\u65b0\u305f\u306bsales\u3068\u3044\u3046Data\u30d9\u30fc\u30b9\u3092\u3064\u304f\u308b\r\npostgres=# create database sales\r\npostgres-# ;\r\nCREATE DATABASE\r\npostgres=# \\l\r\n                             List of databases\r\n   Name    |  Owner   | Encoding  | Collate | Ctype |   Access privileges\r\n-----------+----------+-----------+---------+-------+-----------------------\r\n postgres  | postgres | SQL_ASCII | C       | C     |\r\n sales     | postgres | SQL_ASCII | C       | C     |\r\n template0 | postgres | SQL_ASCII | C       | C     | =c\/postgres          +\r\n           |          |           |         |       | postgres=CTc\/postgres\r\n template1 | postgres | SQL_ASCII | C       | C     | =c\/postgres          +\r\n           |          |           |         |       | postgres=CTc\/postgres\r\n(4 rows)\r\n<\/code><\/pre>\n
\u30c6\u30fc\u30d6\u30eb\u3092\u3064\u304f\u308b\r\npostgres=# insert into userlist values(1,    'sato','tokyo',18);\r\nINSERT 0 1\r\npostgres=# insert into userlist values(2,'nao','kyoto',22);\r\nINSERT 0 1\r\npostgres=# insert into userlist values(3,'john','newyork',34);\r\nINSERT 0 1\r\npostgres=# insert into userlist values(4,'lisa','paris',24);\r\nINSERT 0 1\r\npostgres=# insert into userlist values(5,'kaoru','nagoya',15);\r\nINSERT 0 1\r\npostgres=# insert into userlist values(6,'ryo','fuhuoka',40);\r\nINSERT 0 1\r\n<\/code><\/pre>\n
\u5e73\u5747\u5e74\u9f62\u3092\u7b97\u51fa\u3059\u308b\r\npostgres=# select avg(age) from userlist;\r\n         avg\r\n---------------------\r\n 25.5000000000000000\r\n(1 row)\r\n<\/code><\/pre>\n
\u5408\u8a08\u306e\u5e74\u9f62\u3092\u7b97\u51fa\u3059\u308b\r\npostgres=# select sum(age) from userlist;\r\n sum\r\n-----\r\n 153\r\n(1 row)\r\n<\/code><\/pre>\n
\u5e74\u9f62\u9806\u306b\u8868\u793a\u3059\u308b\r\npostgres=# select * from userlist order by age ;\r\n id | name  | address | age\r\n----+-------+---------+-----\r\n  5 | kaoru | nagoya  |  15\r\n  5 | kaoru | nagoya  |  15\r\n  1 | sato  | tokyo   |  18\r\n  1 | sato  | tokyo   |  18\r\n  2 | nao   | kyoto   |  22\r\n  2 | nao   | kyoto   |  22\r\n  4 | lisa  | paris   |  24\r\n  4 | lisa  | paris   |  24\r\n  3 | john  | newyork |  34\r\n  3 | john  | newyork |  34\r\n  6 | ryo   | fuhuoka |  40\r\n  6 | ryo   | fuhuoka |  40\r\n(12 rows)\r\n<\/code><\/pre>\n
20\u6b73\u304b\u308925\u6b73\u307e\u3067\u306e\u5e73\u5747\u5e74\u9f62\u3092\u7b97\u51fa\u3059\u308b\r\npostgres=# select avg(age) from userlist where age between 20 and 25 ;\r\n         avg\r\n---------------------\r\n 23.0000000000000000\r\n(1 row)\r\n<\/code><\/pre>\n
20\u6b73\u304b\u308925\u6b73\u307e\u3067\u306e\u5408\u8a08\u5e74\u9f62\u3092\u7b97\u51fa\u3059\u308b\r\npostgres=# select sum(age) from userlist where age between 20 and 25 ;\r\n sum\r\n-----\r\n  92\r\n(1 row)\r\n<\/code><\/pre>\n
\u30c6\u30fc\u30d6\u30ebuserlist\u3092\u6368\u3066\u308b\r\npostgres=# drop table userlist;\r\nDROP TABLE\r\n<\/code><\/pre>\n
Data\u30d9\u30fc\u30b9sales\u3092\u6368\u3066\u308b\r\npostgres=# drop database sales;\r\nDROP DATABASE\r\n<\/code><\/pre>\n
Postgresql\u3092\u7d42\u4e86\u3059\u308b\r\npostgres=# \\q\r\n[root@ik1-305-12909 home]#\r\n<\/code><\/pre>\n
\u3010\u5b9f\u8df5\u554f\u984c\u3011\r\n\u5968\u5b66\u91d1\u306e\u7d66\u4ed8\u5236\u5ea6\u306b\u3088\u308a\u3001\u6771\u4eac\u3001\u4eac\u90fd\u3001fuhuoka\u306e\u5185\u3001\r\n\u4eba\u6570\u304c5\u4eba\u4ee5\u4e0a\u306e\u5834\u5408\u30011\u4eba7000\u5186\u306e\u7d66\u4ed8\u3092\u3059\u308b\u3053\u3068\u306b\u306a\u3063\u305f\u3002\r\n\u8a72\u5f53\u3059\u308b\u90fd\u5e02\u306e\u307f\u30c6\u30fc\u30d6\u30eb\u306b\u8868\u793a\u3057\u306a\u3055\u3044\u3002\r\n\u307e\u305f\u7d50\u679c\u3092\/home\/lisa\/data\/result4.csv\u306b\u4fdd\u5b58\u3057\u306a\u3055\u3044\u3002\r\n\u30ab\u30e9\u30e0\u306faddress, count, money\u3060\u3051\u3067\u826f\u3044\u3002\u305f\u3060\u3057money\u306e\u5927\u304d\u3044\u9806\u756a\u3067\u8868\u793a\u3059\u308b\u3053\u3068\u3002\r\n\r\npostgres=#  select address,count(*),count(*)*7000 as \"money\" from userlist where address in ('tokyo','fuhuoka','kyoto')gro\r\nup by address having count(*)>=5 order by count(*) desc;\r\n\r\n\u8868\u793a\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\r\n address | count | money\r\n---------+-------+-------\r\n tokyo   |    14 | 98000\r\n fuhuoka |     5 | 35000\r\n(2 rows)\r\n<\/code><\/pre>\n
\u3010\u5b9f\u8df5\u554f\u984c\u3011\r\n\u6771\u4eac\u3068\u4eac\u90fd\u3067\u30a4\u30d9\u30f3\u30c8\u3092\u958b\u50ac\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u3001\r\n\u30c1\u30e9\u30b7\u306e\u914d\u5e03\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u3002\r\n\u3053\u3053\u306b\u4f4f\u3093\u3067\u3044\u308b20\u4ee3\u306e\u4eba\u306b\u5bfe\u3057\u3066\u3001\r\n\u5e74\u9f62\u306e20\u500d\u306e\u30c1\u30e9\u30b7\u3092\u30ce\u30eb\u30de\u306b\u3057\u305f\u3044\u3002\r\nname, address, age, print\u306e\u30ab\u30e9\u30e0\u3092\u8868\u793a\u3057\u3001\r\n\u679a\u6570\u306e\u591a\u3044\u9806\u756a\u3067\u8868\u793a\u3057\u306a\u3055\u3044\u3002\r\n\u305f\u3060\u3057print\u304c\u30c1\u30e9\u30b7\u306e\u679a\u6570\u3067\u3042\u308b\u3002\r\n\r\n\u8868\u793a\u30b3\u30de\u30f3\u30c9\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\r\npostgres=#  select address, age, age*20 as \"print\" from userlist where (address in ('tokyo','kyoto')) and (age between 20 and 29) order by print desc;\r\n\r\n\u8868\u793a\u7d50\u679c\u306f\u4ee5\u4e0b\u306b\u306a\u308b\r\n address | age | print\r\n---------+-----+-------\r\n tokyo   |  26 |   520\r\n tokyo   |  25 |   500\r\n tokyo   |  25 |   500\r\n tokyo   |  23 |   460\r\n tokyo   |  22 |   440\r\n kyoto   |  22 |   440\r\n kyoto   |  21 |   420\r\n(7 rows)\r\n<\/code><\/pre>\n
\u3010\u5b9e\u8df5\u95ee\u9898\u3011
\n\u4e09\u4f4d\u4f4f\u5728\u4e1c\u4eac\u3001\u4eac\u90fd\u548c\u540d\u53e4\u5c4b\u7684\u5341\u591a\u5c81\u7684\u4eba\u51b3\u5b9a\u53bb\u4f26\u6566\u7559\u5b66\u3002
\n\u56e0\u6b64\uff0c\u4ed6\u4eec\u60f3\u8981\u66f4\u6539\u4f4f\u5740\u3002
\n\u8bf7\u66f4\u6539\u4f4f\u5740\uff0c\u5e76\u5c55\u793a\u59d3\u540d\u3001\u5730\u5740\u548c\u5e74\u9f84\u3002<\/p>\n
\u8868\u793a\u7684\u6307\u4ee4\u5982\u4e0b\uff1a
\n\u203b\u9996\u5148\u8981\u63d0\u53d6\u76ee\u6807\u5bf9\u8c61\u3002<\/p>\n
postgres =\uff03\u9009\u62e9\u5730\u5740\uff0c\u5e74\u9f84\u4ece\u7528\u6237\u5217\u8868\u4e2d\uff0c\u6761\u4ef6\u662f\u5730\u5740\u5728\uff08\u4e1c\u4eac\uff0c\u4eac\u90fd\uff0c\u540d\u53e4\u5c4b\uff09\u4e4b\u95f4\uff0c\u5e74\u9f84\u572810\u523019\u4e4b\u95f4\u3002<\/p>\n
\u4ee5\u4e0b\u90fd\u662f\u5e74\u9f61\u7684\u4eba\uff0c\u5171\u8a083\u4eba<\/p>\n
\u5730\u5740 | \u5e74\u9f61
\n—-+—–
\n\u6771\u4eac | 18
\n\u540d\u53e4\u5c4b | 15
\n\u6771\u4eac | 19
\n(3 \u689d\u7d00\u9304)<\/p>\n
\u8bf7\u6309\u4ee5\u4e0b\u65b9\u5f0f\u6267\u884c\u5730\u5740\u53d8\u66f4\u63aa\u65bd\uff1a<\/p>\n
postgres=# update userlist set address=’\u4f26\u6566’ where (address in (‘\u4e1c\u4eac’\uff0c’\u4eac\u90fd’\uff0c’\u540d\u53e4\u5c4b’)) and (\u5e74\u9f84 between 10 and 19);<\/p>\n
\u5c06\u5df2\u66f4\u6539\u5730\u5740\u7684\u7528\u6237\u663e\u793a\u51fa\u6765\uff1a<\/p>\n
UPDATE 3
\npostgres=# select * from userlist where address=’\u4f26\u6566’;
\nid | name | address | age
\n—-+——-+———+—–
\n1 | \u4f50\u85e4 | \u4f26\u6566 | 18
\n5 | \u85b0 | \u4f26\u6566 | 15
\n18 | \u6cd5\u5b50 | \u4f26\u6566 | 19
\n(3 rows)<\/p>\n","protected":false},"excerpt":{"rendered":"
sshd:x:74:74:Privilege-separated SSH:\/var\/empty\/sshd:\/s […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-42200","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u5728CentOS\u4e0a\u5b89\u88c5PostgreSQL - 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\/\u5728centos\u4e0a\u5b89\u88c5postgresql\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728CentOS\u4e0a\u5b89\u88c5PostgreSQL\" \/>\n<meta property=\"og:description\" content=\"sshd:x:74:74:Privilege-separated SSH:\/var\/empty\/sshd:\/s […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728centos\u4e0a\u5b89\u88c5postgresql\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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