{"id":2886,"date":"2021-07-21T07:46:03","date_gmt":"2021-07-21T07:46:03","guid":{"rendered":"https:\/\/www.bearloga.space\/?page_id=2886"},"modified":"2021-07-21T07:46:04","modified_gmt":"2021-07-21T07:46:04","slug":"ispolzovanie-vyrazheniya-update","status":"publish","type":"page","link":"https:\/\/www.bearloga.space\/en\/ispolzovanie-vyrazheniya-update\/","title":{"rendered":"\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u044f UPDATE"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u041c\u0435\u0442\u043e\u0434&nbsp;<strong>update ()<\/strong>&nbsp;\u0434\u043b\u044f \u043e\u0431\u044a\u0435\u043a\u0442\u0430 \u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0441\u043e\u0437\u0434\u0430\u0435\u0442 \u044d\u043a\u0432\u0438\u0432\u0430\u043b\u0435\u043d\u0442\u043d\u043e\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 UPDATE SQL.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">table.update().where(conditions).values(SET expressions)<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041c\u0435\u0442\u043e\u0434&nbsp;<strong>values \u200b\u200b()<\/strong>&nbsp;\u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u043c \u043e\u0431\u044a\u0435\u043a\u0442\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u0443\u043a\u0430\u0437\u0430\u043d\u0438\u044f \u0443\u0441\u043b\u043e\u0432\u0438\u0439 SET \u041e\u0411\u041d\u041e\u0412\u041b\u0415\u041d\u0418\u042f.&nbsp;\u0415\u0441\u043b\u0438 \u043e\u0441\u0442\u0430\u0432\u0438\u0442\u044c \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 None, \u0443\u0441\u043b\u043e\u0432\u0438\u044f SET \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0442\u0441\u044f \u043f\u043e \u0442\u0435\u043c \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u043c, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u0435\u0440\u0435\u0434\u0430\u044e\u0442\u0441\u044f \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0443 \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0438 \/ \u0438\u043b\u0438 \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0430.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u0438\u0435 where \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u043f\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u043c \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435\u043c, \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u044e\u0449\u0438\u043c \u0443\u0441\u043b\u043e\u0432\u0438\u0435 WHERE \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u0430 UPDATE.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442 \u043a\u043e\u0434\u0430 \u0438\u0437\u043c\u0435\u043d\u044f\u0435\u0442 \u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435 \u0441\u0442\u043e\u043b\u0431\u0446\u0430 \u2018\u0444\u0430\u043c\u0438\u043b\u0438\u044f\u2019 \u0441 \u2018\u0425\u0430\u043d\u043d\u0430\u2019 \u043d\u0430 \u2018\u041a\u0430\u043f\u0443\u0440\u2019 \u0432 \u0442\u0430\u0431\u043b\u0438\u0446\u0435 \u0443\u0447\u0435\u043d\u0438\u043a\u043e\u0432 \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">stmt = students.update().where(students.c.lastname == 'Khanna').values(lastname = 'Kapoor')<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0431\u044a\u0435\u043a\u0442 stmt \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044a\u0435\u043a\u0442\u043e\u043c \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u0432:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">'UPDATE students SET lastname = :lastname WHERE students.lastname = :lastname_1'<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0421\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0439 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440&nbsp;<strong>lastname_1<\/strong>&nbsp;\u0431\u0443\u0434\u0435\u0442 \u0437\u0430\u043c\u0435\u043d\u0435\u043d \u043f\u0440\u0438 \u0432\u044b\u0437\u043e\u0432\u0435 \u043c\u0435\u0442\u043e\u0434\u0430&nbsp;<strong>execute ()<\/strong>&nbsp;.&nbsp;\u041f\u043e\u043b\u043d\u044b\u0439 \u043a\u043e\u0434 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d \u043d\u0438\u0436\u0435 \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sqlalchemy import create_engine, MetaData, Table, Column, Integer, String\nengine = create_engine('sqlite:\/\/\/college.db', echo = True)\nmeta = MetaData()\n\nstudents = Table(\n   'students', \n   meta, \n   Column('id', Integer, primary_key = True), \n   Column('name', String), \n   Column('lastname', String), \n)\n\nconn = engine.connect()\nstmt=students.update().where(students.c.lastname=='Khanna').values(lastname='Kapoor')\nconn.execute(stmt)\ns = students.select()\nconn.execute(s).fetchall()<\/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 \u043a\u043e\u0434 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0435\u0442 \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u0432\u043e\u0434 \u0441\u043e \u0432\u0442\u043e\u0440\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u043e\u0439, \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044e\u0449\u0435\u0439 \u044d\u0444\u0444\u0435\u043a\u0442 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f, \u043a\u0430\u043a \u043d\u0430 \u043f\u0440\u0438\u0432\u0435\u0434\u0435\u043d\u043d\u043e\u043c \u0441\u043a\u0440\u0438\u043d\u0448\u043e\u0442\u0435:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[\n   (1, 'Ravi', 'Kapoor'),\n   (2, 'Rajiv', 'Kapoor'),\n   (3, 'Komal', 'Bhandari'),\n   (4, 'Abdul', 'Sattar'),\n   (5, 'Priya', 'Rajhans')\n]\n<\/pre>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/coderlessons.com\/wp-content\/uploads\/2019\/07\/update_operation-2.jpg\" alt=\"\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u044f \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u041e\u0431\u0440\u0430\u0442\u0438\u0442\u0435 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435, \u0447\u0442\u043e \u043f\u043e\u0434\u043e\u0431\u043d\u0430\u044f \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0434\u043e\u0441\u0442\u0438\u0433\u043d\u0443\u0442\u0430 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0444\u0443\u043d\u043a\u0446\u0438\u0438&nbsp;<strong>update ()<\/strong>&nbsp;\u0432 \u043c\u043e\u0434\u0443\u043b\u0435 sqlalchemy.sql.expression, \u043a\u0430\u043a \u043f\u043e\u043a\u0430\u0437\u0430\u043d\u043e \u043d\u0438\u0436\u0435 \u2014<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u041c\u0435\u0442\u043e\u0434&nbsp;update ()&nbsp;\u0434\u043b\u044f \u043e\u0431\u044a\u0435\u043a\u0442\u0430 \u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0441\u043e\u0437\u0434\u0430\u0435\u0442 \u044d\u043a\u0432\u0438\u0432\u0430\u043b\u0435\u043d\u0442\u043d\u043e\u0435 \u0432\u044b\u0440\u0430\u0436\u0435\u043d\u0438\u0435 UPDATE SQL. table.update().where(conditions).values(SET expressions) \u041c\u0435\u0442\u043e\u0434&nbsp;values \u200b\u200b()&nbsp;\u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0438\u0440\u0443\u044e\u0449\u0435\u043c \u043e\u0431\u044a\u0435\u043a\u0442\u0435 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u0443\u043a\u0430\u0437\u0430\u043d\u0438\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":[103],"tags":[],"class_list":["post-2886","page","type-page","status-publish","hentry","category-sqlalchemy"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/pages\/2886","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/comments?post=2886"}],"version-history":[{"count":0,"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/pages\/2886\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/media?parent=2886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/categories?post=2886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bearloga.space\/en\/wp-json\/wp\/v2\/tags?post=2886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}