{"id":3005,"date":"2021-07-21T12:07:18","date_gmt":"2021-07-21T12:07:18","guid":{"rendered":"https:\/\/www.bearloga.space\/?page_id=3005"},"modified":"2021-07-21T12:07:18","modified_gmt":"2021-07-21T12:07:18","slug":"postgresql-sintaksis-alias","status":"publish","type":"page","link":"https:\/\/www.bearloga.space\/uk\/postgresql-sintaksis-alias\/","title":{"rendered":"PostgreSQL \u2014 \u0421\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 ALIAS"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u0442\u044c \u0442\u0430\u0431\u043b\u0438\u0446\u0443 \u0438\u043b\u0438 \u0441\u0442\u043e\u043b\u0431\u0435\u0446,&nbsp;<strong>\u0443\u043a\u0430\u0437\u0430\u0432<\/strong>&nbsp;\u0434\u0440\u0443\u0433\u043e\u0435 \u0438\u043c\u044f, \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e\u0435 \u043a\u0430\u043a&nbsp;<strong>ALIAS<\/strong>&nbsp;.&nbsp;\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u043e\u0432 \u0442\u0430\u0431\u043b\u0438\u0446 \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0432 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u043c \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0435 PostgreSQL.&nbsp;\u041f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u043c \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435\u043c, \u0438 \u0444\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0435 \u0438\u043c\u044f \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u043d\u0435 \u0438\u0437\u043c\u0435\u043d\u044f\u0435\u0442\u0441\u044f \u0432 \u0431\u0430\u0437\u0435 \u0434\u0430\u043d\u043d\u044b\u0445.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u044b \u0441\u0442\u043e\u043b\u0431\u0446\u043e\u0432 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442\u0441\u044f \u0434\u043b\u044f \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0442\u043e\u043b\u0431\u0446\u043e\u0432 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0441 \u0446\u0435\u043b\u044c\u044e \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u0433\u043e \u0437\u0430\u043f\u0440\u043e\u0441\u0430 PostgreSQL.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u0421\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u0430&nbsp;<strong>\u0442\u0430\u0431\u043b\u0438\u0446\u044b<\/strong>&nbsp;\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT column1, column2....\nFROM table_name AS alias_name\nWHERE [condition];\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u0430&nbsp;<strong>\u0441\u0442\u043e\u043b\u0431\u0446\u0430<\/strong>&nbsp;\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">SELECT column_name AS alias_name\nFROM table_name\nWHERE [condition];\n<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u043f\u0440\u0438\u043c\u0435\u0440<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0420\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0435 \u0434\u0432\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u044b: (\u0430) \u0422\u0430\u0431\u043b\u0438\u0446\u0430\u00a0<a href=\"https:\/\/www.tutorialspoint.com\/postgresql\/company.sql\" target=\"_blank\" rel=\"noreferrer noopener\">\u041a\u041e\u041c\u041f\u0410\u041d\u0418\u0418<\/a>\u00a0\u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">testdb=# select * from COMPANY;\n id | name  | age | address   | salary\n----+-------+-----+-----------+--------\n  1 | Paul  |  32 | California|  20000\n  2 | Allen |  25 | Texas     |  15000\n  3 | Teddy |  23 | Norway    |  20000\n  4 | Mark  |  25 | Rich-Mond |  65000\n  5 | David |  27 | Texas     |  85000\n  6 | Kim   |  22 | South-Hall|  45000\n  7 | James |  24 | Houston   |  10000\n(7 rows)<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">(\u0431) \u0414\u0440\u0443\u0433\u0430\u044f \u0442\u0430\u0431\u043b\u0438\u0446\u0430 \u2014 \u044d\u0442\u043e&nbsp;<a href=\"https:\/\/www.tutorialspoint.com\/postgresql\/department.sql\" target=\"_blank\" rel=\"noreferrer noopener\">\u041e\u0422\u0414\u0415\u041b<\/a>&nbsp;\u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e \u0441\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u044f:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"> id | dept         | emp_id\n----+--------------+--------\n  1 | IT Billing   |      1\n  2 | Engineering  |      2\n  3 | Finance      |      7\n  4 | Engineering  |      3\n  5 | Finance      |      4\n  6 | Engineering  |      5\n  7 | Finance      |      6\n(7 rows)<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u0430\u043b\u0435\u0435 \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435&nbsp;<strong>TABLE ALIAS,<\/strong>&nbsp;\u0433\u0434\u0435 \u043c\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c C \u0438 D \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u043e\u0432 \u0434\u043b\u044f \u0442\u0430\u0431\u043b\u0438\u0446 COMPANY \u0438 DEPARTMENT \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">testdb=# SELECT C.ID, C.NAME, C.AGE, D.DEPT\n   FROM COMPANY AS C, DEPARTMENT AS D\n   WHERE  C.ID = D.EMP_ID;<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u044b\u0439 \u0432\u044b\u0448\u0435 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 PostgreSQL \u0434\u0430\u0441\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"> id | name  | age |  dept\n----+-------+-----+------------\n  1 | Paul  |  32 | IT Billing\n  2 | Allen |  25 | Engineering\n  7 | James |  24 | Finance\n  3 | Teddy |  23 | Engineering\n  4 | Mark  |  25 | Finance\n  5 | David |  27 | Engineering\n  6 | Kim   |  22 | Finance\n(7 rows)\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043f\u0440\u0438\u043c\u0435\u0440 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f&nbsp;<strong>COLUMN ALIAS,<\/strong>&nbsp;\u0433\u0434\u0435 COMPANY_ID \u2014 \u044d\u0442\u043e \u0441\u0442\u043e\u043b\u0431\u0435\u0446 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u043e\u0432 \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u0430, \u0430 COMPANY_NAME \u2014 \u0441\u0442\u043e\u043b\u0431\u0435\u0446 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u043e\u0432 \u0438\u043c\u0435\u043d.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">testdb=# SELECT C.ID AS COMPANY_ID, C.NAME AS COMPANY_NAME, C.AGE, D.DEPT\n   FROM COMPANY AS C, DEPARTMENT AS D\n   WHERE  C.ID = D.EMP_ID;<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u0442\u044c \u0442\u0430\u0431\u043b\u0438\u0446\u0443 \u0438\u043b\u0438 \u0441\u0442\u043e\u043b\u0431\u0435\u0446,&nbsp;\u0443\u043a\u0430\u0437\u0430\u0432&nbsp;\u0434\u0440\u0443\u0433\u043e\u0435 \u0438\u043c\u044f, \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u043e\u0435 \u043a\u0430\u043a&nbsp;ALIAS&nbsp;.&nbsp;\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043f\u0441\u0435\u0432\u0434\u043e\u043d\u0438\u043c\u043e\u0432 \u0442\u0430\u0431\u043b\u0438\u0446 \u043e\u0437\u043d\u0430\u0447\u0430\u0435\u0442 \u043f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0432 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u043c \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0435 PostgreSQL.&nbsp;\u041f\u0435\u0440\u0435\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[104],"tags":[],"class_list":["post-3005","page","type-page","status-publish","hentry","category-postgresql"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages\/3005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/comments?post=3005"}],"version-history":[{"count":0,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages\/3005\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/media?parent=3005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/categories?post=3005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/tags?post=3005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}